JP6791802B2 - 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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- 238000002485 combustion reaction Methods 0.000 title claims description 16
- 238000002156 mixing Methods 0.000 claims description 49
- 239000007788 liquid Substances 0.000 claims description 31
- 230000003197 catalytic effect Effects 0.000 claims description 10
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000000576 coating method Methods 0.000 claims description 5
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 claims 1
- 238000005303 weighing Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 69
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 18
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 15
- 229910021529 ammonia Inorganic materials 0.000 description 9
- 238000011161 development Methods 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 6
- 230000002349 favourable effect Effects 0.000 description 5
- 239000002243 precursor Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000004202 carbamide Substances 0.000 description 3
- 229910010413 TiO 2 Inorganic materials 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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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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- F01N3/18—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]
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
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- F01N3/28—Construction of catalytic reactors
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
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- 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
- B01F25/43161—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 composed of consecutive sections of flat pieces of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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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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- F01N3/24—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
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- 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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- 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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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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- 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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- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
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- 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
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- B01F2215/04—Technical information in relation with mixing
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- B01F2215/0418—Geometrical information
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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 (16)
- 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、
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おり、
1つ以上の前記デバイス(3a;3b)の領域では、前記接続領域(7a;7b)は、前記排ガスの流れ方向において前記支持軸(12a;12b)の長手中心軸の上流に配置されていることを特徴とする混合装置。 - 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1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°の間の角度(a)を有することを特徴とする請求項1又は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、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、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、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5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6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いないことを特徴とする請求項7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7又は8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、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9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10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°の間であることを特徴とする請求項11に記載の混合装置。
- 前記バッフルプレートが、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11又は12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13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13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1から9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 |
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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 |
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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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