KR20150118634A - Low pressure selective catalytic reduction rectangular reactor and engine system having the same - Google Patents

Low pressure selective catalytic reduction rectangular reactor and engine system having the same Download PDF

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KR20150118634A
KR20150118634A KR1020140044232A KR20140044232A KR20150118634A KR 20150118634 A KR20150118634 A KR 20150118634A KR 1020140044232 A KR1020140044232 A KR 1020140044232A KR 20140044232 A KR20140044232 A KR 20140044232A KR 20150118634 A KR20150118634 A KR 20150118634A
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South Korea
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exhaust gas
exhaust
engine
reaction chamber
exhaust line
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KR1020140044232A
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Korean (ko)
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양희성
김현수
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현대중공업 주식회사
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Priority to KR1020140044232A priority Critical patent/KR20150118634A/en
Publication of KR20150118634A publication Critical patent/KR20150118634A/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
    • F01N3/28—Construction of catalytic reactors
    • 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
    • F01N3/18—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 methods of operation; Control
    • F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2304/00—Optimising design; Manufacturing; Testing
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

According to an aspect of the present invention, the low-pressure SCR rectangular reactor comprises: a reacting chamber placed on exhaust lines of an engine in an area where the exhaust lines face each other, through which the exhaust gas discharged from the engine passes; and, a reacting unit facing the direction where the exhaust gas passes and crossing the inside of the reacting chamber for the exhaust gas to pass through and make a chemical reaction. According to another aspect of the present invention, the engine system comprises: an engine which comprises the exhaust lines for discharging exhaust gas; a low-pressure SCR rectangular reactor which comprises: a reacting chamber placed in an area where the exhaust lines face each other and which has a hollow hole through which the exhaust gas discharged from the engine passes; and, a reacting unit facing the direction where the exhaust gas passes through and crossing the inside of the reacting chamber for the exhaust gas to pass through and make a chemical reaction; a turbocharger placed on the exhaust lines to receive the exhaust gas from the engine and compress the air taken in; and, a damper placed on the exhaust lines to control the flow of the exhaust gas. According to the present invention, the low-pressure SCR rectangular reactor and the engine system having the same can make the design of the exhaust lines easier with decreased interference in the exhaust lines facing each other, and can make the installation and the chemical reaction of the exhaust gas easier since the area of the reacting unit can be extended by the height of the reacting chamber and there can be no limit in the design interference of the exhaust line.

Description

저압용 사각 SCR반응기와 이를 구비하는 엔진시스템{Low pressure selective catalytic reduction rectangular reactor and engine system having the same}BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a low pressure rectangular SCR reactor and an engine system having the low pressure selective catalytic reduction reactor and the engine system having the same.

본 발명은 저압용 사각 SCR반응기와 이를 구비하는 엔진시스템에 관한 것이다.The present invention relates to a low pressure square SCR reactor and an engine system having the same.

엔진은 연소실에 유입된 공기를 고온 고압으로 압축하고 보다 큰 압력의 연료를 분사 및 미립화시켜 점화시킨 후 배기가스를 방출한다. 이때, 엔진은 연료의 효율을 상승시키기 위하여, 공기를 미리 압축하여 연소실에 공급한다. 이를 위해, 엔진에서 배출되는 배기가스 압력을 이용해 공기를 압축해 주입하는 터보차저(Turbo Charger)가 엔진에 연결된다. The engine compresses the air flowing into the combustion chamber to a high temperature and a high pressure, and injects and atomizes fuel of a larger pressure to ignite, and then exhausts the exhaust gas. At this time, in order to increase the efficiency of the fuel, the engine pre-compresses the air and supplies it to the combustion chamber. To this end, a turbocharger for compressing and injecting air using the exhaust gas pressure discharged from the engine is connected to the engine.

여기서, 엔진은 엔진회전수에 따라서 공기가 항상 과잉 공급되므로 유해물질인 질소산화물이 다량으로 배출되는데, 환경문제에 대한 규제에 의해, 유해물질을 제거할 필요가 있다. 이를 위해, 엔진의 배기라인에 SCR반응기를 설치하게 된다. 이하에서는 엔진에 설치되는 SCR반응기에 대하여 도면을 참조하여 설명하도록 한다.
Here, since the engine is always over-fed with air according to the engine speed, a large amount of nitrogen oxide, which is a harmful substance, is discharged. However, it is necessary to remove harmful substances by regulation on environmental problems. For this purpose, an SCR reactor is installed in the exhaust line of the engine. Hereinafter, an SCR reactor installed in an engine will be described with reference to the drawings.

도 1은 일반적인 SCR반응기를 도시한 도면이다.1 is a view showing a general SCR reactor.

도 1을 참조하면, SCR반응기(1)는 SCR라인(11) 및 반응부(12)를 포함한다.Referring to FIG. 1, the SCR reactor 1 includes an SCR line 11 and a reaction unit 12.

SCR라인(11)은 엔진(도시하지 않음)의 배기라인(20) 상에 마련되는 것으로, 배기라인(20)이 확관되어 SCR라인(11)을 이루게 된다. The SCR line 11 is provided on the exhaust line 20 of the engine (not shown), and the exhaust line 20 is expanded to form the SCR line 11. [

SCR라인(11)이 배기라인(20)의 지름보다 크게 이루어지는 것은 SCR라인(11)을 가로질러 반응부(12)가 마련됨에 따라 SCR라인(11)의 입구와 출구 사이에 압력차이가 발생하게 되어 압력차를 줄이기 위해 지름이 커지게 된다.The fact that the SCR line 11 is larger than the diameter of the exhaust line 20 means that a pressure difference occurs between the inlet and the outlet of the SCR line 11 as the reaction part 12 is provided across the SCR line 11 So that the diameter becomes larger to reduce the pressure difference.

반응부(12)는 촉매를 내구성이 강한 벌집(Honeycomb)형 코디에라이트(Cordierite) 등의 기질에 결합 시켜 반응탑에 여러 단으로 적재한 후, 암모니아 등을 환원제로 이용하여 고온으로 가열된 촉매에 분사하여 질소산화물만을 선택적으로 환원시켜 질소가스로 바꿈으로써 유해물질을 저감시킨다.
The reaction part 12 is formed by bonding a catalyst to a substrate such as a honeycomb-type cordierite having high durability and loading it in various stages in a reaction tower, and then, using ammonia or the like as a reducing agent, To selectively reduce only nitrogen oxides to nitrogen gas, thereby reducing harmful substances.

한편, SCR라인(11)이 배기라인(20)의 지름보다 크게 이루어짐에 따라, 배기라인(20)이 구부러져 유턴을 하는 경우와 같이, 서로 이웃한 배기라인(20)이 설계상으로 겹쳐질 우려가 있어, 배기라인(20)의 설계에 제한이 이루어지는 문제점이 있다.On the other hand, as the SCR line 11 is made larger than the diameter of the exhaust line 20, there is a possibility that the adjacent exhaust lines 20 will overlap with each other in design, as in the case where the exhaust line 20 is bent and turned on There is a problem that the design of the exhaust line 20 is restricted.

본 발명은 상기와 같은 종래기술의 문제점을 해결하고자 창출된 것으로서, 본 발명의 목적은 배기라인과 SCR라인의 설계를 개선할 수 있는 저압용 사각 SCR반응기와 이를 구비하는 엔진시스템을 제공하기 위한 것이다.SUMMARY OF THE INVENTION It is an object of the present invention to provide a low pressure square SCR reactor capable of improving the design of an exhaust line and an SCR line and an engine system having the same .

본 발명의 일 측면에 따른 저압용 사각 SCR반응기는 엔진의 배기라인 상에 마련되되, 상기 배기라인이 서로 마주하는 영역에 마련되어, 상기 엔진으로부터 배출된 배기가스가 경유하는 중공이 형성되는 반응챔버; 및 배기가스가 관통하며 화학 반응되도록 배기가스가 경유하는 방향에 대향하여 상기 반응챔버의 내부를 가로지르는 반응부를 포함하는 것을 특징으로 한다.A low-pressure square SCR reactor according to an aspect of the present invention includes a reaction chamber provided on an exhaust line of an engine, the reaction chamber being provided in an area where the exhaust lines face each other, wherein a hollow is formed through exhaust gas discharged from the engine; And a reaction part which crosses the inside of the reaction chamber so as to face the direction in which the exhaust gas passes so that the exhaust gas penetrates and is chemically reacted.

본 발명의 다른 측면에 따른 엔진시스템은, 배기가스를 배출하는 배기라인을 포함하는 엔진; 상기 배기라인이 서로 마주하는 영역에 마련되어 상기 엔진으로부터 배출된 배기가스가 경유하는 중공이 형성되는 반응챔버와, 배기가스가 관통하며 화학 반응되도록 배기가스가 경유하는 방향에 대향하여 상기 반응챔버의 내부를 가로지르는 반응부를 포함하는 저압용 사각 SCR반응기; 상기 배기라인 상에 마련되어, 상기 엔진으로부터 배기가스를 공급받고, 흡입공기를 압축시키는 터보차저; 및 상기 배기라인 상에 마련되어 배기가스의 흐름을 조절하는 댐퍼를 포함하는 것을 특징으로 한다.An engine system according to another aspect of the present invention includes: an engine including an exhaust line for exhausting exhaust gas; A reaction chamber in which the exhaust line is provided in a region where the exhaust lines face each other and in which a hollow is formed through exhaust gas exhausted from the engine and an exhaust passage communicating with the inside of the reaction chamber Pressure SCR reactor; A turbocharger provided on the exhaust line to receive exhaust gas from the engine and compress the intake air; And a damper provided on the exhaust line to adjust the flow of the exhaust gas.

여기서, 상기 반응챔버는, 상기 배기라인이 연결되어 배기가스가 유입되는 출구와 상기 배기라인이 연결되어 배기가스가 배출되는 출구가 형성되고, 상기 반응부는 상기 반응챔버의 출구와 입구를 구획하여 상기 반응챔버의 내부를 가로지르는 것을 특징으로 한다.Here, the reaction chamber is formed with an outlet through which the exhaust gas is connected and an outlet through which the exhaust gas is exhausted, through which the exhaust gas is connected, and the reaction unit includes an outlet and an inlet of the reaction chamber, And crossing the inside of the reaction chamber.

또한, 상기 반응챔버는, 하측으로 갈수록 폭이 좁아지는 것을 특징으로 한다.Further, the reaction chamber is characterized in that its width becomes narrower toward the lower side.

본 발명에 따른 저압용 사각 SCR반응기와 이를 구비하는 엔진시스템은, 서로 마주한 배기라인에 간섭이 줄어, 배기라인의 설계가 용이하며, 반응챔버의 높이로 반응부의 면적을 확장시킴으로써 배기라인의 설계관섭이 제한되지 않을 수 있어 설치 및 배기가스의 화학반응이 용이할 수 있다. The low pressure square SCR reactor and the engine system having the same according to the present invention can reduce the interference to the exhaust lines facing each other and facilitate the design of the exhaust line and enlarge the area of the reaction section to the height of the reaction chamber, May be not limited so that the chemical reaction of the installation and the exhaust gas may be facilitated.

도 1은 일반적인 저압용 사각 SCR반응기를 도시한 도면이다.
도 2는 본 발명의 일 실시예에 따른 저압용 사각 SCR반응기를 도시한 도면이다.
도 3은 본 발명의 일 실시예에 따른 엔진시스템을 도시한 도면이다.1 is a view showing a general low pressure square SCR reactor.
FIG. 2 illustrates a low pressure square SCR reactor according to an embodiment of the present invention. Referring to FIG.
3 is a view showing an engine system according to an embodiment of the present invention.

본 발명의 목적, 특정한 장점들 및 신규한 특징들은 첨부된 도면들과 연관되어지는 이하의 상세한 설명과 바람직한 실시예로부터 더욱 명백해질 것이다. 본 명세서에서 각 도면의 구성요소들에 참조번호를 부가함에 있어서, 동일한 구성 요소들에 한해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 번호를 가지도록 하고 있음에 유의하여야 한다. 또한, 본 발명을 설명함에 있어서, 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명은 생략한다.BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명하기로 한다.
Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 일 실시예에 따른 저압용 사각 SCR반응기를 도시한 도면이다.FIG. 2 illustrates a low pressure square SCR reactor according to an embodiment of the present invention. Referring to FIG.

도 2에 도시한 바와 같이, 본 발명의 일 실시예에 따른 저압용 사각 SCR반응기(100)는, 반응챔버(110) 및 반응부(120)를 포함한다.
2, the low pressure square SCR reactor 100 according to an embodiment of the present invention includes a reaction chamber 110 and a reaction unit 120.

반응챔버(110)는 반응부(120)가 설치되는 구성으로서, 엔진(도 3 참조, 210)의 배기라인(도 3 참조, 211) 상에 마련되되, 배기라인(211)이 서로 마주하는 영역에 마련되어, 엔진(210)으로부터 배출된 배기가스가 경유하는 중공이 형성된다.The reaction chamber 110 is provided on the exhaust line (see FIG. 3) 211 of the engine (see FIG. 3) And a hollow through which the exhaust gas discharged from the engine 210 passes is formed.

반응챔버(110)는 다각기둥의 형상을 이룰 수 있고, 예를 들어 하측으로 갈수록 폭이 좁아지는 형태의 직육면체형상을 이룰 수 있다. 본 실시예의 반응챔버(110)는 반응부(120)의 면적을 확대시키도록 반응챔버(110)의 높이를 연장시킬 수 있어, 배기가스가 관통하며 화학반응되는 반응 면적을 증가시킬 수 있다.The reaction chamber 110 may have a polygonal column shape, for example, a rectangular parallelepiped shape having a narrower width toward the lower side. The reaction chamber 110 of the present embodiment can extend the height of the reaction chamber 110 to enlarge the area of the reaction part 120 and increase the reaction area through which the exhaust gas penetrates and is chemically reacted.

여기서, 반응챔버(110)는 배기라인(211)이 연결되어 배기가스가 유입되는 출구와 배기라인(211)이 연결되어 배기가스가 배출되는 출구가 형성될 수 있다. 반응챔버(110)는 배기라인(211)이 절곡되거나 구부러지는, 예를 들어 'U'자 형태의 배기라인(211)에서 구부러진 배기라인(211)을 삭제하고 마련될 수 있다. Here, the reaction chamber 110 may be formed with an outlet through which the exhaust line 211 is connected and the exhaust line 211 is connected to the outlet through which the exhaust gas is introduced. The reaction chamber 110 may be provided with the exhaust line 211 bent or bent, for example, by deleting the exhaust line 211 bent in a 'U' shaped exhaust line 211.

도면에 도시한 바와 같이, 반응챔버(110)는 서로 이웃한 배기라인(211A,211B)이 출구와 입구에 각각 마련되어 배기가스가 유입되어 반응챔버(110)를 경로한 후 배출될 수 있다.As shown in the drawing, the reaction chamber 110 is provided with exhaust lines 211A and 211B, which are adjacent to each other, at the outlet and the inlet, respectively, so that the exhaust gas can flow into the reaction chamber 110 after being exhausted.

이에 따라, 배기라인(211)의 반응부(120)가 배기가스와 화학 반응되도록 충분한 면적을 이루도록 서로 마주하는 배기라인(211) 상에서 반응챔버(110)의 폭을 확장할 필요없이, 반응챔버(110)의 높이방향으로 길이를 설계 변경할 수 있다. 따라서, 본 실시예는 반응부(120)의 면적을 확장시키도록, 배기라인(211)의 간섭을 회피하는 설계를 감소시킬 수 있으므로 설계가 용이하다.
Thereby, the reaction chamber 110 can be easily removed from the reaction chamber 110 without having to expand the width of the reaction chamber 110 on the exhaust line 211 facing each other so that the reaction part 120 of the exhaust line 211 is chemically reacted with the exhaust gas. 110 in the height direction. Therefore, the present embodiment can reduce the design of avoiding the interference of the exhaust line 211 so as to enlarge the area of the reaction part 120, so that the design is easy.

반응부(120)는 배기가스가 관통하며 화학 반응되도록 배기가스가 경유하는 방향에 대향하여 반응챔버(110)의 내부를 가로지른다. 예를 들어, 반응부(120)는 반응챔버(110)의 출구와 입구를 구획하여 반응챔버(110)의 내부를 가로지를 수 있다.The reaction part 120 traverses the inside of the reaction chamber 110 in a direction opposite to a direction in which the exhaust gas passes so that the exhaust gas penetrates and is chemically reacted. For example, the reaction part 120 may intersect the inside of the reaction chamber 110 by partitioning the outlet and the inlet of the reaction chamber 110.

예를 들어, 반응부(120)는 선택적 촉매환원법을 이용할 수 있다. 선택적 촉매환원법은 일반적으로 백금, 팔라듐, 로듐 등의 귀금속 물질 또는 바나듐, 철, 코발트, 구리, 등의 기타 전이금속 물질을 이산화티탄, 산화바나튬, 알루미나, 제올라이트 등에 반응시켜 제조한 촉매를 내구성이 강한 벌집(Honeycomb)형 코디에라이트(Cordierite) 등의 기질에 결합 시키거나 입자상으로 만들어질 수 있다. 그리고 암모니아 내지는 암모니아수를 환원제로서 이용하여 고온으로 가열된 촉매에 분사하여 질소산화물만을 선택적으로 환원시켜 질소가스로 바꿀 수 있다.
For example, the reaction unit 120 may employ a selective catalytic reduction method. Selective catalytic reduction is generally carried out by reacting a catalyst prepared by reacting a noble metal such as platinum, palladium or rhodium or other transition metal such as vanadium, iron, cobalt or copper with titanium dioxide, vanadium oxide, alumina or zeolite Can be bonded to a substrate such as a strong honeycomb type Cordierite, or can be made into a particle. Then, ammonia or ammonia water is used as a reducing agent, and it is injected into a catalyst heated to a high temperature so that only nitrogen oxide can be selectively reduced to nitrogen gas.

이와 같은 실시예에 따른 저압용 사각 SCR반응기(100)는 반응챔버(110)의 높이를 설계변경하여 반응부(120)의 면적을 확장시킬 수 있어, 배기라인(211)의 간섭을 회피하는 설계를 감소시킬 수 있으므로 설계가 용이하다.
The low pressure square SCR reactor 100 according to this embodiment can enlarge the area of the reaction part 120 by designing the height of the reaction chamber 110 so as to avoid the interference of the exhaust line 211 It is easy to design.

이하에서는 일 실시예에 따른 저압용 사각 SCR반응기(100)가 마련되는 엔진시스템에 대하여 도면을 참조하여 설명하도록 한다. Hereinafter, an engine system provided with a low pressure square SCR reactor 100 according to an embodiment will be described with reference to the drawings.

도 3은 본 발명의 일 실시예에 따른 엔진시스템을 도시한 도면이다. 앞서 설명한 일 실시예와 동일하거나 대응하는 구성 요소는 동일한 도면번호를 부여하고 이에 대한 중복되는 설명은 생략하기로 한다.3 is a view showing an engine system according to an embodiment of the present invention. The same or corresponding elements as those of the above-described embodiment will be denoted by the same reference numerals and duplicate descriptions thereof will be omitted.

도 3에 도시한 바와 같이, 엔진시스템(200)은 엔진(210), 저압용 사각 SCR반응기(100), 터보차저(220) 및 댐퍼(230)를 포함한다.
3, the engine system 200 includes an engine 210, a low pressure square SCR reactor 100, a turbocharger 220, and a damper 230.

엔진(210)은 배기가스를 배출하는 배기라인(211)을 포함한다. 엔진(210) 내부로 연료가 주입된 후에 배기가스는 엔진(210)에서 연소되어 배출되고, 배출된 배기가스가 터보차저(220)를 구동하도록 배기라인(211)을 거쳐 터보차저(220)로 도입된다.The engine 210 includes an exhaust line 211 for exhausting the exhaust gas. After the fuel is injected into the engine 210, the exhaust gas is burned and discharged from the engine 210. The discharged exhaust gas is supplied to the turbocharger 220 through the exhaust line 211 to drive the turbocharger 220 .

여기서, 배기라인(211)은 엔진(210)과 터보차저(220) 사이에 마련되고, 배기라인(211) 상에는 저압용 사각 SCR반응기(100)와 댐퍼(230)가 설치된다. 또한, 배기라인(211)은 분기되어 다시 합류될 수 있고, 분기된 배기라인(211) 상에 저압용 사각 SCR반응기(100)가 마련될 수 있다.
The exhaust line 211 is provided between the engine 210 and the turbocharger 220 and the low pressure square SCR reactor 100 and the damper 230 are installed on the exhaust line 211. Also, the exhaust line 211 may be branched and rejoined, and a low pressure square SCR reactor 100 may be provided on the branched exhaust line 211.

저압용 사각 SCR반응기(100)는 앞서 설명한 일 실시예에 따른 저압용 사각 SCR반응기(100)와 같으며, 중복되는 설명은 생략하도록 한다. 본 실시예의 저압용 사각 SCR반응기(100)는 배기라인(211)상에 마련되어 엔진(210)으로부터 배출되는 배기가스가 경유하며 반응챔버(110) 및 반응부(120)를 포함한다.
The low pressure square SCR reactor 100 is the same as the low pressure square SCR reactor 100 according to the embodiment described above, and redundant description will be omitted. The low pressure square SCR reactor 100 of the present embodiment is provided on the exhaust line 211 and includes the reaction chamber 110 and the reaction unit 120 via the exhaust gas discharged from the engine 210.

터보차저(220)는 배기라인(211) 상에 마련되어, 엔진(210)으로부터 배기가스를 공급받고, 흡입공기를 압축시킨다. 터보차저(220)는 터빈(도시하지 않음)과 압축기(도시하지 않음)를 포함하며, 터빈은 공급받은 배기가스에 의해 구동되어 배기가스가 가지는 에너지에 의해 터빈 내에 자유롭게 지지된 터빈의 휠이 회전되고, 터빈에 내장된 휠의 회전토크는 압축기의 휠로 전달되어 압축기가 구동될 수 있다. 이때, 압축기에는 외부로부터 흡입공기가 유입되어 흡입공기가 압축될 수 있다.
The turbocharger 220 is provided on the exhaust line 211 to receive exhaust gas from the engine 210 and compress the intake air. The turbocharger 220 includes a turbine (not shown) and a compressor (not shown). The turbine is driven by the supplied exhaust gas, and the wheel of the turbine, which is freely supported in the turbine by the energy of the exhaust gas, And the rotational torque of the wheel incorporated in the turbine is transmitted to the wheel of the compressor so that the compressor can be driven. At this time, the suction air is introduced into the compressor from the outside, and the suction air can be compressed.

댐퍼(230)는 배기라인(211) 상에 마련되어 배기가스의 흐름을 조절하는 밸브로 이루어질 수 있다. 이러한, 댐퍼(230)는 터보차저(220)로 직접 배기가스가 유입되는 배기가스의 양을 조절할 수 있다. 이에 따라, 배기라인(211)상에서 분기된 배기라인(211) 상의 저압용 사각 SCR반응기(100)로 배기가스가 경유되어 터보차저(220)로 유입되는 배기가스의 양을 밸브의 개도조절로 이룰수 있다. The damper 230 may be a valve provided on the exhaust line 211 to regulate the flow of the exhaust gas. The damper 230 can control the amount of exhaust gas flowing directly into the turbocharger 220. Accordingly, the amount of the exhaust gas flowing into the turbocharger 220 via the exhaust gas to the low pressure square SCR reactor 100 on the exhaust line 211 branched on the exhaust line 211 can be controlled by adjusting the opening degree of the valve have.

이와 같은, 댐퍼(230)는 도 3에 도시한 바와 같이, 배기라인(211) 상에서 배기라인(211)이 분기되어 다시 합류되는 지점의 사이에 마련될 수 있다. 이와 달리, 배기라인(211) 상에서 배기라인(211)이 분기되는 지점에 마련될 수도 있다.
3, the damper 230 may be provided between the points where the exhaust line 211 is branched and rejoined on the exhaust line 211. [ Alternatively, it may be provided at the point where the exhaust line 211 is branched on the exhaust line 211.

이와 같이 본 실시예는, 서로 마주한 배기라인(211)에 간섭이 줄어, 배기라인(211)의 설계가 용이하며, 반응챔버(110)의 높이로 반응부(120)의 면적을 확장시킴으로써 배기라인의 설계관섭이 제한되지 않을 수 있어 설치 및 배기가스의 화학반응이 용이할 수 있다.
As described above, in the present embodiment, the interference with the exhaust lines 211 facing each other is reduced, the design of the exhaust line 211 is easy, and the area of the reaction portion 120 is extended to the height of the reaction chamber 110, So that the chemical reaction of the installation and the exhaust gas can be facilitated.

이상 본 발명을 구체적인 실시예를 통하여 상세히 설명하였으나, 이는 본 발명을 구체적으로 설명하기 위한 것으로, 본 발명은 이에 한정되지 않으며, 본 발명의 기술적 사상 내에서 당해 분야의 통상의 지식을 가진 자에 의해 그 변형이나 개량이 가능함은 명백하다고 할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification and the modification are possible.

본 발명의 단순한 변형 내지 변경은 모두 본 발명의 영역에 속하는 것으로 본 발명의 구체적인 보호 범위는 첨부된 특허청구범위에 의하여 명확해질 것이다.It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1,100: 저압용 사각 SCR반응기 11: SCR라인
12,120: 반응부 20,211,211A,211B: 배기라인
110: 반응챔버 200: 엔진시스템
210: 엔진 220: 터보차저
230: 댐퍼1,100: Low pressure square SCR reactor 11: SCR line
12,120: Reactor 20,211,211A, 211B: Exhaust line
110: reaction chamber 200: engine system
210: engine 220: turbocharger
230: damper

Claims (6)

엔진의 배기라인 상에 마련되되, 상기 배기라인이 서로 마주하는 영역에 마련되어, 상기 엔진으로부터 배출된 배기가스가 경유하는 중공이 형성되는 반응챔버; 및
배기가스가 관통하며 화학 반응되도록 배기가스가 경유하는 방향에 대향하여 상기 반응챔버의 내부를 가로지르는 반응부를 포함하는 것을 특징으로 하는 저압용 사각 SCR반응기.A reaction chamber provided on an exhaust line of the engine, the reaction chamber being provided in an area where the exhaust lines face each other, wherein a hollow is formed through the exhaust gas discharged from the engine; And
And a reaction part which crosses the inside of the reaction chamber so as to face the direction in which the exhaust gas passes so that the exhaust gas penetrates and is chemically reacted. 제1항에 있어서,
상기 반응챔버는, 상기 배기라인이 연결되어 배기가스가 유입되는 출구와 상기 배기라인이 연결되어 배기가스가 배출되는 출구가 형성되고,
상기 반응부는 상기 반응챔버의 출구와 입구를 구획하여 상기 반응챔버의 내부를 가로지르는 것을 특징으로 하는 저압용 사각 SCR반응기.The method according to claim 1,
Wherein the reaction chamber is formed with an outlet through which the exhaust line is connected and an outlet through which the exhaust line is connected to discharge the exhaust gas,
Wherein the reaction unit divides an outlet and an inlet of the reaction chamber and crosses the inside of the reaction chamber. 제1항에 있어서, 상기 반응챔버는,
하측으로 갈수록 폭이 좁아지는 것을 특징으로 하는 저압용 사각 SCR반응기.The apparatus according to claim 1,
And the width becomes narrower toward the lower side. 배기가스를 배출하는 배기라인을 포함하는 엔진;
상기 배기라인이 서로 마주하는 영역에 마련되어 상기 엔진으로부터 배출된 배기가스가 경유하는 중공이 형성되는 반응챔버와, 배기가스가 관통하며 화학 반응되도록 배기가스가 경유하는 방향에 대향하여 상기 반응챔버의 내부를 가로지르는 반응부를 포함하는 저압용 사각 SCR반응기;
상기 배기라인 상에 마련되어, 상기 엔진으로부터 배기가스를 공급받고, 흡입공기를 압축시키는 터보차저; 및
상기 배기라인 상에 마련되어 배기가스의 흐름을 조절하는 댐퍼를 포함하는 것을 특징으로 하는 엔진시스템.An engine including an exhaust line for exhausting exhaust gas;
A reaction chamber in which the exhaust line is provided in a region where the exhaust lines face each other and in which a hollow is formed through exhaust gas exhausted from the engine and an exhaust passage communicating with the inside of the reaction chamber Pressure SCR reactor;
A turbocharger provided on the exhaust line to receive exhaust gas from the engine and compress the intake air; And
And a damper provided on the exhaust line for regulating the flow of the exhaust gas. 제4항에 있어서, 상기 반응챔버는,
상기 배기라인이 연결되어 배기가스가 유입되는 출구와 상기 배기라인이 연결되어 배기가스가 배출되는 출구가 형성되는 것을 특징으로 하는 엔진시스템.5. The apparatus according to claim 4,
Wherein an outlet through which the exhaust gas is introduced is connected to the exhaust line and an outlet through which the exhaust gas is discharged is formed. 제4항에 있어서,
상기 반응챔버는, 상기 배기라인이 연결되어 배기가스가 유입되는 출구와 상기 배기라인이 연결되어 배기가스가 배출되는 출구가 형성되고,
상기 반응부는 상기 반응챔버의 출구와 입구를 구획하여 상기 반응챔버의 내부를 가로지르는 것을 특징으로 하는 엔진시스템.5. The method of claim 4,
Wherein the reaction chamber is formed with an outlet through which the exhaust line is connected and an outlet through which the exhaust line is connected to discharge the exhaust gas,
Wherein the reaction section is configured to partition the outlet and the inlet of the reaction chamber and cross the inside of the reaction chamber.
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KR20170055116A (en) * 2015-11-11 2017-05-19 현대중공업 주식회사 Selective catalytic reduction system corresponding to multiple turbo chargers

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