KR20200070858A - Urea blender for vehicle - Google Patents

Urea blender for vehicle Download PDF

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KR20200070858A
KR20200070858A KR1020180158451A KR20180158451A KR20200070858A KR 20200070858 A KR20200070858 A KR 20200070858A KR 1020180158451 A KR1020180158451 A KR 1020180158451A KR 20180158451 A KR20180158451 A KR 20180158451A KR 20200070858 A KR20200070858 A KR 20200070858A
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South Korea
Prior art keywords
urea water
vehicle
housing
mixing device
gas
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KR1020180158451A
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Korean (ko)
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최윤성
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현대자동차주식회사
기아자동차주식회사
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Priority to KR1020180158451A priority Critical patent/KR20200070858A/en
Publication of KR20200070858A publication Critical patent/KR20200070858A/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
    • F01N3/2803—Construction of catalytic reactors characterised by structure, by material or by manufacturing of catalyst support
    • F01N3/2807—Metal other than sintered metal
    • F01N3/281—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates
    • F01N3/2821—Metallic honeycomb monoliths made of stacked or rolled sheets, foils or plates the support being provided with means to enhance the mixing process inside the converter, e.g. sheets, plates or foils with protrusions or projections to create turbulence
    • 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]
    • 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
    • F01N2240/20—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 flow director or deflector
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

The present invention relates to a urea water mixing device for a vehicle. A blade (11) for mixing exhaust gas (1) and urea water (2), a pipe (21) for spraying ammonia gas (3) and a housing (22) are integrally combined to be one body. Accordingly, the number of parts installed in an exhaust pipe (4) can be significantly reduced to purify nitrogen oxide.

Description

차량용 요소수 혼합장치{UREA BLENDER FOR VEHICLE}Vehicle urea water mixing device {UREA BLENDER FOR VEHICLE}

본 발명은 차량용 요소수 혼합장치에 관한 것으로, 보다 상세하게는 배기가스와 요소수의 혼합용 블레이드 및 암모니아가스 분사기구가 일체로 구성된 차량용 요소수 혼합장치에 관한 기술이다The present invention relates to a urea water mixing device for a vehicle, and more particularly, to a vehicle urea water mixing device comprising a blade for mixing exhaust gas and urea water and an ammonia gas injection mechanism integrally.

차량은 엔진 작동시 배기가스가 발생되고, 특히 디젤 엔진의 경우는 다량의 질소산화물(NOx)을 함유한 배기가스가 외부로 배출된다.Vehicles generate exhaust gas when the engine is operated, and in the case of diesel engines, exhaust gas containing a large amount of nitrogen oxides (NOx) is discharged to the outside.

이와 같은 질소산화물(NOx)은 연소 온도가 높아질수록 양도 증가하고, 외부로 배출시 심각한 대기오염을 유발함에 따라, 통상적으로 질소산화물의 양을 줄이기 위해 엔진의 연소 온도를 제어함은 물론 배기장치쪽에 촉매를 설치하여 정화하는 방식을 실시하고 있다.As the combustion temperature increases, the amount of nitrogen oxide (NOx) increases, and as it causes serious air pollution when discharged to the outside, the combustion temperature of the engine is usually controlled to reduce the amount of nitrogen oxide. A method of purifying by installing a catalyst is implemented.

차량에서 배출되는 질소산화물의 정화를 위해 선택적 촉매 반응 시스템(SCR System, Selective Catalyst Reduction System)을 사용할 경우, SCR촉매에 공급될 환원제(암모니아, NH3)가 필요하다.When a selective catalytic reaction system (SCR system) is used to purify nitrogen oxides emitted from a vehicle, a reducing agent (ammonia, NH3) to be supplied to the SCR catalyst is required.

환원제를 공급하기 위한 방안으로는 배기관에 요소수(UREA)를 공급하는 방안과 암모니아가스를 공급하는 방안이 있다.As a method for supplying the reducing agent, there are a method of supplying urea water (UREA) to the exhaust pipe and a method of supplying ammonia gas.

배기관내에 요소수가 분사되면 분사된 요소수는 배기가스와 혼합되면서 배기가스 열에 의해 열분해되어 암모니아로 변환되고, 변환된 암모니아는 SCR촉매에서 질소산화물과 반응하여 물과 질소로 분해되는 바, 이를 통해 배기가스 중의 질소산화물을 저감시킬 수 있게 된다. When the urea water is injected into the exhaust pipe, the injected urea water is mixed with the exhaust gas and is thermally decomposed by the heat of the exhaust gas to be converted into ammonia, and the converted ammonia reacts with nitrogen oxides in the SCR catalyst to be decomposed into water and nitrogen. It is possible to reduce nitrogen oxides in the exhaust gas.

이와 같이, 배기관내에 요소수를 분사하는 경우 요소수와 배기가스의 혼합율을 높이기 위해 와류를 형성하는 일명 믹서(mixer)가 설치된다.In this way, when urea water is injected into the exhaust pipe, a so-called mixer is formed to form a vortex to increase the mixing ratio between urea water and exhaust gas.

배기관내에 암모니아가스를 공급하는 방안은 고체 암모니아를 저장하는 탱크로부터 배기관을 연결하는 파이프를 구성하고, 파이프의 끝에 암모니아가스를 분사하는 노즐을 구비한 구성으로, 믹서를 사용하지 않아도 되는 장점이 있다.The method of supplying ammonia gas into the exhaust pipe is a configuration of a pipe connecting the exhaust pipe from a tank storing solid ammonia, and having a nozzle for injecting ammonia gas at the end of the pipe, which has the advantage of not using a mixer. .

최근에는 질소산화물의 정화율을 높이기 위해 배기관에 요소수(UREA)를 공급하는 방안과 암모니아가스를 공급하는 방안을 함께 사용하는 경우가 있고, 이럴 경우 배기관내에 요소수를 혼합하는 믹서와 암모니아가스를 분사하는 다수개의 노즐 및 노즐플레이트를 각각 별도로 한꺼번에 구성해야 하는 바, 이와 같이 배기관내에 많은 부품이 설치되면 배기관내의 배압이 증가됨에 따라 악영향을 유발할 수 있고, 특히 설치공간을 확보해야 하는 어려움이 있다.Recently, in order to increase the purification rate of nitrogen oxide, a method of supplying urea water to the exhaust pipe and a method of supplying ammonia gas are sometimes used together. In this case, a mixer and ammonia gas mixing urea water in the exhaust pipe It is necessary to configure a plurality of nozzles and a nozzle plate for spraying each of them separately at once. When many parts are installed in the exhaust pipe as described above, an adverse effect may be caused as the back pressure in the exhaust pipe increases. There is this.

상기의 배경기술로서 설명된 사항들은 본 발명의 배경에 대한 이해 증진을 위한 것일 뿐, 이 기술분야에서 통상의 지식을 가진 자에게 이미 알려진 종래기술에 해당함을 인정하는 것으로 받아들여져서는 안 될 것이다.The above descriptions as background arts are only for improving understanding of the background of the present invention, and should not be taken as an admission that they correspond to the prior arts already known to those skilled in the art.

대한민국공개특허공보 제10-2017-0108191호Republic of Korea Patent Publication No. 10-2017-0108191

본 발명은, 배기관에 요소수가 공급되는 방안과 암모니아가스가 공급되는 방안이 함께 적용된 SCR시스템에서 배기가스와 요소수의 혼합용 블레이드 및 암모니아가스 분사기구가 일체로 구성된 요소수 혼합장치를 제공하는 것으로, 이를 통해 배기관내에 설치되는 부품의 개수를 크게 줄일 수 있게 되고, 특히 배기관내의 배압증가 현상을 예방할 수 있도록 하는 데에 그 목적이 있다.The present invention is to provide a urea water mixing device in which a blade for mixing exhaust gas and urea water and an ammonia gas injection mechanism are integrally formed in an SCR system in which both a method for supplying urea water and a method for supplying ammonia gas is applied to the exhaust pipe together. , Through this, it is possible to significantly reduce the number of parts installed in the exhaust pipe, and in particular, its purpose is to prevent an increase in the back pressure in the exhaust pipe.

상기한 바의 목적을 달성하기 위한 본 발명 차량용 요소수 혼합장치는, 배기가스와 요소수를 혼합하는 혼합기구; 및 암모니아가스를 분사하는 분사기구를 포함하고; 상기 혼합기구와 분사기구는 한 개의 바디를 이루도록 일체로 구성되면서 배기관내에 고정되게 설치된 것을 특징으로 한다.A urea water mixing device for a vehicle according to the present invention for achieving the object of the present invention includes a mixing mechanism for mixing exhaust gas and urea water; And an injection mechanism for injecting ammonia gas; The mixing mechanism and the injection mechanism are characterized by being integrally configured to form a single body and fixedly installed in the exhaust pipe.

상기 혼합기구는 분사기구에 일체로 결합되면서 방사상으로 배치된 다수개의 블레이드를 포함하는 것을 특징으로 한다.The mixing mechanism is characterized in that it comprises a plurality of blades arranged radially while being integrally coupled to the injection mechanism.

상기 블레이드는 배기가스 흐름방향을 따라 원호모양으로 형성되어서 블레이드를 통과한 후단에서 와류가 형성되도록 하는 것을 특징으로 한다.The blade is characterized in that it is formed in an arc shape along the flow direction of the exhaust gas so that a vortex is formed at a rear end passing through the blade.

상기 분사기구는 암모니아가스가 공급되는 파이프; 및 상기 파이프와 연결되면서 배기관내에 고정되게 설치되고, 블레이드가 일체로 결합되며, 내부에는 암모니아가스가 이동하는 가스통로가 형성되고, 암모니아가스가 배출되는 다수개의 분사구멍이 가스통로와 연결되게 형성된 하우징;을 포함하는 것을 특징으로 한다.The injection mechanism is a pipe through which ammonia gas is supplied; And being connected to the pipe and fixedly installed in the exhaust pipe, the blades are integrally coupled, a gas passage through which ammonia gas moves is formed, and a plurality of injection holes through which ammonia gas is discharged are formed to be connected to the gas passage. Housing; characterized in that it comprises a.

상기 하우징은 일면과 타면을 관통하는 중공홀이 중심부에 형성된 원형링모양으로 형성되고; 상기 중공홀내에 블레이드가 위치하도록 구성된 것을 특징으로 한다.The housing is formed in a circular ring shape in which a hollow hole penetrating one surface and the other surface is formed in the center; It characterized in that the blade is configured to be located in the hollow hole.

상기 분사구멍은 배기가스 흐름방향을 따라 하우징의 일면과 타면중에서 어느 한쪽 면에만 형성되거나 또는 하우징의 일면과 타면에 모두 형성되도록 구성된 것을 특징으로 한다.The injection hole is characterized in that it is configured to be formed on either one side or the other side of the housing along one direction or the other side of the housing along the flow direction of the exhaust gas.

상기 다수개의 블레이드를 일체로 연결해서 지지하는 중간링을 더 포함하는 것을 특징으로 한다.It characterized in that it further comprises an intermediate ring for supporting the plurality of blades integrally connected.

본 발명에 따른 차량용 요소수 혼합장치는, 배기가스와 요소수를 혼합하는 블레이드 및 암모니아가스를 분사하는 파이프와 하우징이 한 개의 바디가 되게 일체로 결합된 구성으로, 질소산화물의 정화를 위해 배기관내에 설치되는 부품의 개수를 크게 줄일 수 있게 됨에 따라 배기관내의 배압증가 현상을 예방할 수 있으며, 이를 통해 출력저하 현상을 예방할 수 있는 효과가 있다.The urea water mixing device for a vehicle according to the present invention is composed of a blade for mixing exhaust gas and urea water and a pipe and a housing for injecting ammonia gas to be integrally combined into one body, in the exhaust pipe for purifying nitrogen oxides As it is possible to greatly reduce the number of parts installed in the back pressure in the exhaust pipe, it is possible to prevent the phenomenon of an increase in pressure, thereby preventing an effect of a decrease in output.

또한, 암모니아가스를 분사하기 위한 하우징의 내부 중공홀속에 다수개의 블레이드가 위치하는 구성으로, 이를 통해 블레이드의 설치공간을 별도로 확보할 필요가 없으며, 특히 혼합기구와 분사기구의 결합체 사이즈를 컴팩트하게 구성할 수 있는 효과가 있다.In addition, a configuration in which a plurality of blades are located in the hollow hole inside the housing for injecting ammonia gas, and there is no need to separately secure the installation space of the blades. In particular, the combined size of the mixing mechanism and the injection mechanism is compact. It has the effect.

도 1은 본 발명에 따른 차량용 요소수 혼합장치가 배기관에 설치된 상태의 개략적인 도면,
도 2와 도 3은 본 발명에 따른 차량용 요소수 혼합장치의 좌측 사시도 및 우측 사시도,
도 4는 도 2의 Ⅰ-Ⅰ선 단면도이다.1 is a schematic view of a vehicle urea water mixing device according to the present invention installed in an exhaust pipe,
2 and 3 are a left perspective view and a right perspective view of a vehicle urea water mixing device according to the present invention,
4 is a sectional view taken along line I-I in FIG. 2.

이하에서는 첨부된 도면을 참조하여 본 발명의 바람직한 일실시예에 따른 차량용 요소수 혼합장치에 대해 살펴보기로 한다.Hereinafter, with reference to the accompanying drawings will be described with respect to the vehicle urea water mixing device according to an embodiment of the present invention.

본 발명에 따른 차량용 요소수 혼합장치는 도 1 내지 도 4에 도시된 바와 같이 배기가스(1)와 요소수(2)를 혼합하는 혼합기구(10); 및 암모니아가스(3)를 분사하는 분사기구(20)를 포함하고; 상기 혼합기구(10)와 분사기구(20)는 한 개의 바디를 이루도록 일체로 구성되면서 배기관(4)내에 고정되게 설치된다.The urea water mixing device for a vehicle according to the present invention includes a mixing mechanism 10 for mixing the exhaust gas 1 and the urea water 2 as shown in FIGS. 1 to 4; And an injection mechanism 20 for injecting ammonia gas 3; The mixing mechanism 10 and the injection mechanism 20 are integrally configured to form one body and are fixedly installed in the exhaust pipe 4.

요소수탱크에 저장된 요소수(2)는 노즐(5)을 통해 배기관(4)내에 분사된다.The urea water 2 stored in the urea water tank is injected into the exhaust pipe 4 through the nozzle 5.

배기관(4)내에 요소수(2)가 분사되면 분사된 요소수는 배기가스(1)와 혼합되면서 배기가스 열에 의해 열분해되어 암모니아로 변환된다.When the urea water 2 is injected into the exhaust pipe 4, the injected urea water is mixed with the exhaust gas 1 and thermally decomposed by the heat of the exhaust gas to be converted into ammonia.

본 발명에 따른 혼합기구(10)는 분사기구(20)에 일체로 결합되면서 방사상으로 배치된 다수개의 블레이드(11)를 포함한다.The mixing mechanism 10 according to the present invention comprises a plurality of blades 11 arranged radially while being integrally coupled to the injection mechanism 20.

그리고, 블레이드(11)는 배기가스 흐름방향(M1)을 따라 소정각도로 굴곡진 원호모양으로 형성된다.Then, the blade 11 is formed in a circular arc shape curved at a predetermined angle along the exhaust gas flow direction M1.

따라서, 배기가스(1)와 요소수(2)는 블레이드(11)를 통과한 후단에서 와류가 형성됨에 따라 배기가스(1)와 요소수(2)의 혼합길이(SCR촉매까지 도달하는데 소요되는 시간)을 증대시킬 수 있게 되고, 이를 통해 배기가스(1)와 요소수(2)의 혼합율을 높일 수 있게 된다.Accordingly, the exhaust gas 1 and the urea water 2 are required to reach the mixing length (SCR catalyst) of the exhaust gas 1 and the urea water 2 as vortices are formed at the rear end after passing through the blade 11. Time), through which the mixing ratio of the exhaust gas 1 and the urea water 2 can be increased.

본 발명에 따른 분사기구(20)는 암모니아가스가 공급되는 파이프(21); 및 배기관(4)으로 암모니아가스(3)를 분사하는 하우징(22)을 포함한다.The injection mechanism 20 according to the present invention includes a pipe 21 through which ammonia gas is supplied; And a housing 22 for injecting ammonia gas 3 into the exhaust pipe 4.

상기 파이프(21)는 암모니아고체가 저장된 탱크와 연결되고, 상기 하우징(22)은 파이프(21)와 연결된다.The pipe 21 is connected to a tank in which ammonia solid is stored, and the housing 22 is connected to a pipe 21.

파이프(21)와 연결된 하우징(22)은 배기관(4)내에 고정되게 설치되고, 블레이드(11)가 일체로 결합되며, 내부에는 암모니아가스가 이동하는 가스통로(23)가 형성되고, 암모니아가스가 배출되는 다수개의 분사구멍(24)이 가스통로(23)와 연결되게 형성된다.The housing 22 connected to the pipe 21 is fixedly installed in the exhaust pipe 4, the blades 11 are integrally coupled, a gas passage 23 through which ammonia gas moves is formed, and ammonia gas is A plurality of discharge holes 24 are discharged is formed to be connected to the gas passage (23).

분사구멍(24)은 적어도 1개 이상으로 형성되고, 각각의 지름은 3mm 이상으로 형성된 것이 바람직하지만, 이에 한정되는 것은 아니다.The injection holes 24 are formed of at least one or more, and each diameter is preferably formed of 3 mm or more, but is not limited thereto.

분사기구(20)를 구성하는 하우징(22)은 일면(22a)과 타면(22b)을 관통하는 중공홀(25)이 중심부에 형성된 원형링모양으로 형성되고, 상기 중공홀(25)내에 블레이드(11)가 위치하도록 구성된다.The housing 22 constituting the injection mechanism 20 has a hollow ring 25 penetrating one surface 22a and the other surface 22b formed in a circular ring shape formed in the center, and a blade ( 11) is configured to be located.

하우징(22)의 중공홀(25)내에 블레이드(11)가 위치하도록 구성됨에 따라 블레이드(11)의 설치공간을 별도로 확보할 필요가 없으며, 특히 혼합기구(10)와 분사기구(20)의 결합체 사이즈를 컴팩트하게 구성할 수 있게 된다.Since the blade 11 is configured to be positioned in the hollow hole 25 of the housing 22, there is no need to separately secure the installation space of the blade 11, in particular, a combination of the mixing mechanism 10 and the injection mechanism 20 The size can be configured compactly.

하우징(22)은 일면(22a)은 배기가스 흐름방향(M1)과 마주 대하는 면이고, 하우징(22)은 타면(22b)은 배기가스 흐름방향(M1)과 동일한 방향을 향하는 면으로 정의될 수 있다.Housing 22 is one surface (22a) is a surface facing the exhaust gas flow direction (M1), the housing 22 is the other surface (22b) can be defined as a surface facing the same direction as the exhaust gas flow direction (M1) have.

분사구멍(24)은 배기가스 흐름방향(M1)을 따라 하우징(22)의 일면(22a)과 타면(22b)중에서 어느 한쪽 면에만 형성될 수 있고, 또는 하우징(22)의 일면(22a)과 타면(22b)에 모두 형성될 수 있다.The injection hole 24 may be formed on only one of the one surface 22a and the other surface 22b of the housing 22 along the exhaust gas flow direction M1, or with one surface 22a of the housing 22 All may be formed on the other surface 22b.

분사구멍(24)이 하우징(22)의 일면(22a)과 타면(22b)에 모두 형성되는 경우 암모니아가스의 분사량을 증대시킬 수 있게 됨에 따라 질소산화물의 정화율을 한층 더 높일 수 있게 된다.When the injection hole 24 is formed on both the one surface 22a and the other surface 22b of the housing 22, it is possible to further increase the purification rate of nitrogen oxides as the injection amount of ammonia gas can be increased.

본 발명에 따른 실시예는 다수개의 블레이드(11)를 일체로 연결해서 지지하는 중간링(30)을 더 포함할 수 있는 바, 중간링(30)을 이용해서 다수개의 블레이드(11)의 결합력을 견고하게 유지할 수 있게 된다.The embodiment according to the present invention may further include an intermediate ring 30 that supports the plurality of blades 11 by integrally connecting them, and the coupling force of the plurality of blades 11 using the intermediate ring 30 is further improved. It will be able to remain solid.

다수개의 블레이드(11)는 하우징(22)의 중공홀(25)로 삽입되어서 하우징(22)의 내주면과의 결합을 통해 블레이드(11)와 하우징(22)이 직접 결합될 수 있다.The plurality of blades 11 are inserted into the hollow hole 25 of the housing 22 so that the blade 11 and the housing 22 can be directly coupled through the coupling with the inner circumferential surface of the housing 22.

또는 외곽링(40)속에 다수개의 블레이드(11)를 삽입해서 다수개의 블레이드(11)와 외곽링(40)을 일체로 결합하고, 다수개의 블레이드(11)가 결합된 외곽링(40)을 하우징(22)의 중공홀(25)로 삽입해서 외곽링(40)의 외주면과 하우징(22)의 내주면을 일체로 결합하고, 이를 통해 다수개의 블레이드(11)가 외곽링(40)을 통해 하우징(22)과 일체화를 이루도록 결합된 구조도 가능할 것이다.Alternatively, by inserting a plurality of blades 11 into the outer ring 40, the plurality of blades 11 and the outer ring 40 are integrally combined, and the outer ring 40 to which the plurality of blades 11 are coupled is housed. Inserted into the hollow hole 25 of 22, the outer circumferential surface of the outer ring 40 and the inner circumferential surface of the housing 22 are integrally combined, and through this, a plurality of blades 11 are provided through the outer ring 40. 22) A combined structure to achieve integration with one another would also be possible.

이상 설명한 바와 같이 본 발명에 따른 차량용 요소수 혼합장치는, 배기가스(1)와 요소수(2)를 혼합하는 블레이드(11) 및 암모니아가스(3)를 분사하는 파이프(21)와 하우징(22)이 한 개의 바디가 되게 일체로 결합된 구성으로, 질소산화물의 정화를 위해 배기관(4)내에 설치되는 부품의 개수를 크게 줄일 수 있게 됨에 따라 배기관(4)내의 배압증가 현상을 예방할 수 있으며, 이를 통해 출력저하 현상을 예방할 수 있는 장점이 있다.As described above, the urea water mixing device for a vehicle according to the present invention includes a blade 11 for mixing the exhaust gas 1 and the urea water 2 and a pipe 21 and a housing 22 for spraying ammonia gas 3 ) Is an integrally combined structure to be a single body, and as the number of parts installed in the exhaust pipe 4 can be greatly reduced for purification of nitrogen oxides, it is possible to prevent an increase in the back pressure in the exhaust pipe 4, This has the advantage of preventing the output degradation phenomenon.

또한, 암모니아가스(3)를 분사하기 위한 하우징(22)의 내부 중공홀(25)속에 다수개의 블레이드(11)가 위치하는 구성으로, 이를 통해 블레이드(11)의 설치공간을 별도로 확보할 필요가 없으며, 특히 혼합기구(10)와 분사기구(20)의 결합체 사이즈를 컴팩트하게 구성할 수 있는 장점도 있다.In addition, a configuration in which a plurality of blades 11 are located in the inner hollow hole 25 of the housing 22 for injecting ammonia gas 3, through which it is necessary to separately secure the installation space of the blades 11 There is, in particular, the advantage of being able to compactly configure the size of the combination of the mixing mechanism 10 and the injection mechanism 20.

본 발명은 특정한 실시예에 관련하여 도시하고 설명하였지만, 이하의 특허청구범위에 의해 제공되는 본 발명의 기술적 사상을 벗어나지 않는 한도 내에서, 본 발명이 다양하게 개량 및 변화될 수 있다는 것은 당업계에서 통상의 지식을 가진 자에게 있어서 자명할 것이다.Although the present invention has been illustrated and described in connection with specific embodiments, it is understood in the art that the present invention may be variously improved and changed within the limits that do not depart from the technical spirit of the present invention provided by the following claims. It will be obvious to those of ordinary skill.

1 - 배기가스 2 - 요소수
3 - 암모니아가스 4 - 배기관
10 - 혼합기구 11 - 블레이드
20 - 분사기구 21 - 파이프
22 - 하우징 22a - 일면
22b - 타면 23 - 가스통로
24 - 분사구멍 25 - 중공홀
30 - 내부링 40 - 외곽링1-exhaust gas 2-urea water
3-Ammonia gas 4-Exhaust pipe
10-Mixing mechanism 11-Blade
20-Injection mechanism 21-Pipe
22-housing 22a-one side
22b-Other side 23-Gas passage
24-Injection hole 25-Hollow hole
30-Inner ring 40-Outer ring

Claims (7)

배기가스와 요소수를 혼합하는 혼합기구; 및
암모니아가스를 분사하는 분사기구를 포함하고;
상기 혼합기구와 분사기구는 한 개의 바디를 이루도록 일체로 구성되면서 배기관내에 고정되게 설치된 것을 특징으로 하는 차량용 요소수 혼합장치.A mixing mechanism for mixing exhaust gas and urea water; And
And an injection mechanism for injecting ammonia gas;
The mixing mechanism and the injection mechanism is integrally configured to form a body, the vehicle urea water mixing device, characterized in that fixedly installed in the exhaust pipe. 청구항 1에 있어서,
상기 혼합기구는 분사기구에 일체로 결합되면서 방사상으로 배치된 다수개의 블레이드를 포함하는 것을 특징으로 하는 차량용 요소수 혼합장치.The method according to claim 1,
The mixing mechanism is a vehicle urea water mixing device characterized in that it is integrally coupled to the injection mechanism and includes a plurality of blades arranged radially. 청구항 2에 있어서,
상기 블레이드는 배기가스 흐름방향을 따라 원호모양으로 형성되어서 블레이드를 통과한 후단에서 와류가 형성되도록 하는 것을 특징으로 하는 차량용 요소수 혼합장치.The method according to claim 2,
The blade is formed in an arc shape along the flow direction of the exhaust gas so that the urea water mixing device for a vehicle, characterized in that to form a vortex at the rear end passing through the blade. 청구항 2에 있어서,
상기 분사기구는 암모니아가스가 공급되는 파이프; 및
상기 파이프와 연결되면서 배기관내에 고정되게 설치되고, 블레이드가 일체로 결합되며, 내부에는 암모니아가스가 이동하는 가스통로가 형성되고, 암모니아가스가 배출되는 다수개의 분사구멍이 가스통로와 연결되게 형성된 하우징;을 포함하는 것을 특징으로 하는 차량용 요소수 혼합장치.The method according to claim 2,
The injection mechanism is a pipe through which ammonia gas is supplied; And
The housing is formed to be fixedly installed in the exhaust pipe while being connected to the pipe, the blades are integrally formed, a gas passage through which ammonia gas moves is formed, and a plurality of injection holes through which ammonia gas is discharged is connected to the gas passage. ; Urea water mixing device for a vehicle comprising a. 청구항 4에 있어서,
상기 하우징은 일면과 타면을 관통하는 중공홀이 중심부에 형성된 원형링모양으로 형성되고;
상기 중공홀내에 블레이드가 위치하도록 구성된 것을 특징으로 하는 차량용 요소수 혼합장치.The method according to claim 4,
The housing is formed in a circular ring shape in which a hollow hole penetrating one surface and the other surface is formed in the center;
A urea water mixing device for a vehicle, characterized in that the blade is configured to be positioned in the hollow hole. 청구항 4에 있어서,
상기 분사구멍은 배기가스 흐름방향을 따라 하우징의 일면과 타면중에서 어느 한쪽 면에만 형성되거나 또는 하우징의 일면과 타면에 모두 형성되도록 구성된 것을 특징으로 하는 차량용 요소수 혼합장치.The method according to claim 4,
The injection hole is a vehicle urea water mixing device characterized in that it is configured to be formed on either one side or the other side of the housing or one side of the other side of the housing along the flow direction of the exhaust gas. 청구항 2에 있어서,
상기 다수개의 블레이드를 일체로 연결해서 지지하는 중간링을 더 포함하는 것을 특징으로 하는 차량용 요소수 혼합장치.The method according to claim 2,
The urea water mixing device for a vehicle, further comprising an intermediate ring for supporting the plurality of blades integrally connected.
KR1020180158451A 2018-12-10 2018-12-10 Urea blender for vehicle KR20200070858A (en)

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Publication number Priority date Publication date Assignee Title
KR20220107706A (en) 2021-01-26 2022-08-02 융진기업 주식회사 NOx Reduction Device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170108191A (en) 2016-03-16 2017-09-27 현대자동차주식회사 Exhaust purification device for vehicle

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170108191A (en) 2016-03-16 2017-09-27 현대자동차주식회사 Exhaust purification device for vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220107706A (en) 2021-01-26 2022-08-02 융진기업 주식회사 NOx Reduction Device

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