JP2017194063A - 内燃機関の排ガス後処理システムのための混合装置 - Google Patents
内燃機関の排ガス後処理システムのための混合装置 Download PDFInfo
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- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
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- B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
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- 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
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- F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. by adjusting the dosing of reducing agent
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
- B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
- B01F25/3132—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit by using two or more injector devices
- B01F25/31323—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit by using two or more injector devices used successively
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4316—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being flat pieces of material, e.g. intermeshing, fixed to the wall or fixed on a central rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
- B01F25/431973—Mounted on a support member extending transversally through the mixing tube
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- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- 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
- F01N3/029—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 by adding non-fuel substances to exhaust
- F01N3/0293—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 by adding non-fuel substances to exhaust injecting substances in exhaust stream
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- 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
- F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
- F01N3/2066—Selective catalytic reduction [SCR]
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- 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
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- 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
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- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01F2215/00—Auxiliary or complementary information in relation with mixing
- B01F2215/04—Technical information in relation with mixing
- B01F2215/0413—Numerical information
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- 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
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Abstract
Description
0.1×cos(a/2)×バッフルプレートの長さ≦距離≦3×cos(a/2)×バッフルプレートの長さ
に従う。
Claims (18)
- 内燃機関の排ガス後処理システムのための、すなわち液体、特にアンモニア又はアンモニア前駆物質を排ガスと混合させるための混合装置(1)であって、
前記排ガスが導かれるパイプ(2)を有する混合装置において、
少なくとも1つのデバイス(3a;3b)が、前記パイプ(2)内に位置決めされ、前記デバイス(3a;3b)が、規定角度で取り付けられたプレート状要素(4a,5a;4b,5b)を備え、1つ以上の前記デバイス(3a;3b)の領域内での排ガスが、まず、前記プレート状要素(4a,5a;4b,5b)の接続領域(7a;7b)に衝突し、その後、前記接続領域(7a;7b)から前記排ガスの流れ方向において分岐している前記プレート状要素(4a,5a;4b,5b)を介して導かれることができることを特徴とする混合装置。 - 1つ以上の前記デバイス(3a;3b)の領域では、それぞれの前記プレート状要素(4a,5a;4b,5b)が、共通の支持軸(12a;12b)に又は共通の支持軸(12a;12b)を介して固定され、それぞれの前記デバイス(3a;3b)が、それぞれの前記支持軸(12a;12b)を介して前記パイプ(2)の壁部に固定されていることを特徴とする請求項1に記載の混合装置。
- 前記支持軸(12a;12b)が、前記液体を導くことに役立つように構成され、
前記支持軸(12a;12b)には、計量供給デバイスが配置され、前記液体が、前記プレート状要素(4a,5a;4b,5b)の前記接続領域(7a;7b)の下流で、前記計量供給デバイスを介して前記排ガス内に導入されることができることを特徴とする請求項2に記載の混合装置。 - 1つ以上の前記デバイス(3a;3b)の領域では、それぞれの前記プレート状要素(4a,5a;4b,5b)が、40°〜160°の間、好ましくは60°〜120°の間、最も好ましくは70°〜110°の間の角度(a)を有することを特徴とする請求項1から3のいずれか一項に記載の混合装置。
- 1つ以上の前記デバイス(3a;3b)の領域では、前記プレート状要素(4a,5a;4b,5b)が、直線縁部(8a,9a;8b,9b)と、円弧状縁部(10a,11a;10b,11b)と、を有する円形セクションの形態で形成され、それぞれの前記プレート状要素(4a,5a;4b,5b)が、前記プレート状要素(4a,5a;4b,5b)の前記直線縁部(8a,9a;8b,9b)の領域で互いに接続されていることを特徴とする請求項1から4のいずれか一項に記載の混合装置。
- 1つ以上の前記デバイス(3a;3b)の領域では、それぞれの前記プレート状要素(4a,5a;4b,5b)が、異なるサイズとされていることを特徴とする請求項1から5のいずれか一項に記載の混合装置。
- 1つ以上の前記デバイス(3a;3b)の領域では、それぞれの前記プレート状要素(4a,5a;4b,5b)が、前記パイプ(2)の長手軸に対して異なる取付角度を有することを特徴とする請求項1から6のいずれか一項に記載の混合装置。
- 前記混合装置が、前記排ガスの流れ方向で見ると並んで位置決めされた複数のデバイス(3a,3b)を備え、前記複数のデバイス(3a,3b)が、規定角度で取り付けられたプレート状要素(4a,5a;4b,5b)と、支持軸(12a,12b)と、をそれぞれ備えることを特徴とする請求項1から7のいずれか一項に記載の混合装置。
- 並んで位置決めされたデバイス(3a:3b)の前記支持軸(12a;12b)が、互いに平行に延在しておらず、且つ投影すると、特に40°〜150°の間、好ましくは70°〜120°の間、最も好ましくは80°〜100°の間の角度を有することを特徴とする請求項8に記載の混合装置。
- 前記複数のデバイス(3a;3b)のうちの少なくとも1つの前記支持軸(12a;12b)には、計量供給デバイスが配置されていることを特徴とする請求項8又は9に記載の混合装置。
- 1つ以上の前記デバイス(3a;3b)の領域では、前記プレート状要素(4a,5a;4b,5b)が、選択的にTiO2を含む触媒活性コーティングを有することを特徴とする請求項1から10のいずれか一項に記載の混合装置。
- 1つ以上の前記デバイス(3a;3b)の上流に位置決めされたバッフルプレートを備えていることを特徴とする請求項1から11のいずれか一項に記載の混合装置。
- 前記バッフルプレートの取付角度が、20°〜60°の間、好ましくは30°〜55°の間、最も好ましくは40°〜50°の間であることを特徴とする請求項12に記載の混合装置。
- 前記バッフルプレートが、選択的にTiO2を含む触媒活性コーティングを有することを特徴とする請求項12又は13に記載の混合装置。
- 前記排ガスが導かれる前記パイプ(2)が、断面が丸みを帯びて構成されていることを特徴とする請求項1から14のいずれか一項に記載の混合装置。
- 前記プレート状要素(4a,5a;4b,5b)には、凹所が存在していることを特徴とする請求項1から14のいずれか一項に記載の混合装置。
- 前記支持軸(12a;12b)が、前記パイプの軸と交差していることを特徴とする請求項2から10のいずれか一項に記載の混合装置。
- 前記液体を前記排出パイプ内に供給するときに、前記支持軸(12)から又は前記接続領域(7a,7b)からの液体の放出距離、及び/又はバッフルプレートの中心点から前記バッフルプレートの下流の配置が、
0.1×cos(a/2)×バッフルプレートの長さ≦距離≦3×cos(a/2)×バッフルプレートの長さ
に従うことを特徴とする請求項1から17のいずれか一項に記載の混合装置。
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| DE102016206825.3A DE102016206825A1 (de) | 2016-04-21 | 2016-04-21 | Mischvorrichtung für ein Abgasnachbehandlungssystem einer Brennkraftmaschine |
| DE102016206825.3 | 2016-04-21 |
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| JP2014234815A (ja) * | 2013-06-05 | 2014-12-15 | 本田技研工業株式会社 | 内燃機関の排気浄化装置 |
| WO2014208841A1 (ko) * | 2013-06-28 | 2014-12-31 | 두산엔진주식회사 | 선택적 촉매 환원장치의 환원제 열분해 시스템 |
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| JP3892452B2 (ja) * | 2004-07-16 | 2007-03-14 | 日産ディーゼル工業株式会社 | エンジンの排気浄化装置 |
| JP2006167576A (ja) * | 2004-12-15 | 2006-06-29 | Babcock Hitachi Kk | 熱機関の排ガス浄化装置およびその製法 |
| DE102008020827A1 (de) * | 2008-04-25 | 2009-11-05 | Presswerk Struthütten GmbH | Mischer, Verfahren zur Herstellung eines solchen und Mischeranordnung |
| US9010994B2 (en) * | 2010-01-21 | 2015-04-21 | Fluid Components International Llc | Flow mixer and conditioner |
| DE102011075252A1 (de) * | 2011-05-04 | 2012-11-08 | J. Eberspächer GmbH & Co. KG | Mischelement |
| DE102011111765B4 (de) * | 2011-08-24 | 2023-06-22 | Friedrich Boysen Gmbh & Co. Kg | Mischereinrichtung |
| DE102011083637B4 (de) * | 2011-09-28 | 2016-04-14 | Eberspächer Exhaust Technology GmbH & Co. KG | Misch- und/oder Verdampfungseinrichtung |
| CN103894082B (zh) * | 2014-03-03 | 2016-11-23 | 东南大学 | 设置于气体通道中的气体混合器及其组成的气体混合装置 |
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| WO2014208841A1 (ko) * | 2013-06-28 | 2014-12-31 | 두산엔진주식회사 | 선택적 촉매 환원장치의 환원제 열분해 시스템 |
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