JP6746529B2 - リアクタ - Google Patents
リアクタ Download PDFInfo
- Publication number
- JP6746529B2 JP6746529B2 JP2017070919A JP2017070919A JP6746529B2 JP 6746529 B2 JP6746529 B2 JP 6746529B2 JP 2017070919 A JP2017070919 A JP 2017070919A JP 2017070919 A JP2017070919 A JP 2017070919A JP 6746529 B2 JP6746529 B2 JP 6746529B2
- Authority
- JP
- Japan
- Prior art keywords
- flow
- exhaust gas
- reactor
- changing portion
- straightening
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000011144 upstream manufacturing Methods 0.000 claims description 18
- 238000003780 insertion Methods 0.000 claims description 11
- 230000037431 insertion Effects 0.000 claims description 11
- 239000000654 additive Substances 0.000 claims description 8
- 230000000996 additive effect Effects 0.000 claims description 7
- 238000009834 vaporization Methods 0.000 claims description 7
- 230000008016 vaporization Effects 0.000 claims description 7
- 239000007921 spray Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 description 77
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 24
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 18
- 239000003054 catalyst Substances 0.000 description 15
- 238000006722 reduction reaction Methods 0.000 description 15
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 description 11
- 229910021529 ammonia Inorganic materials 0.000 description 9
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005206 flow analysis Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- 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
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
- B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
- B01F23/2132—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
-
- 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
- B01F25/3131—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
-
- 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
- B01F25/4315—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being deformed flat pieces of material
-
- 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
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—Urea
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
- B01D53/9431—Processes characterised by a specific device
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
-
- 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
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Exhaust Gas After Treatment (AREA)
Description
[化1]
(NH2)2CO+H2O→2NH3+CO2
7A ガス集合室(流れ変更部)
8 リアクタ
10 尿素水(添加剤)
12 整流羽根
12a フィン
13 支持体
13a 対向側壁
13c 固定リング
14 差込口
Claims (3)
- 排気系の排気ガスが曲折して流れる流れ変更部に設置され且つ該流れ変更部の上流側から吹き付けられた添加剤の噴霧を衝突させて受熱により気化を促すリアクタであって、排気ガスの前記流れ変更部に対する流入方向と流出方向とが成す角度を略二等分する方向へ並ぶように配列される複数枚の整流羽根と、該各整流羽根の両端部を支持して前記流れ変更部内に収容される支持体とを備え、前記各整流羽根が前記支持体により前記流れ変更部の流路壁から離間して支持され、前記支持体が前記各整流羽根の並び方向に斜辺を成す一対の対向側壁を有し且つ該各対向側壁の前記斜辺に複数段の差込口が形成されており、該各差込口に前記各整流羽根が上流側から両端部を差し込まれて組み付けられ且つその組み付け状態にて前記各整流羽根が排気ガスの流れに沿う取り付け姿勢を成すように形成されていることを特徴とするリアクタ。
- 各整流羽根の下流側に排気ガスの流れを流れ変更部からの流出方向へ案内するフィンが形成されていることを特徴とする請求項1に記載のリアクタ。
- 支持体の下流側に流れ変更部の流路壁に内嵌装着される固定リングが付設されていることを特徴とする請求項1又は2に記載のリアクタ。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017070919A JP6746529B2 (ja) | 2017-03-31 | 2017-03-31 | リアクタ |
CN201880022212.6A CN110446832A (zh) | 2017-03-31 | 2018-03-13 | 反应器 |
PCT/JP2018/009690 WO2018180457A1 (ja) | 2017-03-31 | 2018-03-13 | リアクタ |
EP18777818.8A EP3604755A1 (en) | 2017-03-31 | 2018-03-13 | Reactor |
US16/498,524 US20210108547A1 (en) | 2017-03-31 | 2018-03-13 | Reactor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017070919A JP6746529B2 (ja) | 2017-03-31 | 2017-03-31 | リアクタ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2018173017A JP2018173017A (ja) | 2018-11-08 |
JP6746529B2 true JP6746529B2 (ja) | 2020-08-26 |
Family
ID=63675458
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017070919A Active JP6746529B2 (ja) | 2017-03-31 | 2017-03-31 | リアクタ |
Country Status (5)
Country | Link |
---|---|
US (1) | US20210108547A1 (ja) |
EP (1) | EP3604755A1 (ja) |
JP (1) | JP6746529B2 (ja) |
CN (1) | CN110446832A (ja) |
WO (1) | WO2018180457A1 (ja) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007021598B4 (de) * | 2007-05-08 | 2022-10-20 | Bayerische Motoren Werke Aktiengesellschaft | Vorrichtung zum Verteilen von fließfähigen Zusatzstoffen in Abgasanlagen |
DE112013007793B4 (de) * | 2012-08-10 | 2024-01-25 | Tenneco Automotive Operating Company Inc. | Vorrichtung zum mischen eines abgasstroms |
JP6282931B2 (ja) * | 2014-05-20 | 2018-02-21 | 日野自動車株式会社 | ミキシング構造 |
JP6535249B2 (ja) * | 2015-08-07 | 2019-06-26 | 日野自動車株式会社 | 尿素水リアクタ |
-
2017
- 2017-03-31 JP JP2017070919A patent/JP6746529B2/ja active Active
-
2018
- 2018-03-13 US US16/498,524 patent/US20210108547A1/en not_active Abandoned
- 2018-03-13 WO PCT/JP2018/009690 patent/WO2018180457A1/ja active Application Filing
- 2018-03-13 CN CN201880022212.6A patent/CN110446832A/zh active Pending
- 2018-03-13 EP EP18777818.8A patent/EP3604755A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US20210108547A1 (en) | 2021-04-15 |
JP2018173017A (ja) | 2018-11-08 |
CN110446832A (zh) | 2019-11-12 |
WO2018180457A1 (ja) | 2018-10-04 |
EP3604755A1 (en) | 2020-02-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4920532B2 (ja) | 排気浄化装置 | |
JP5329383B2 (ja) | 排気浄化装置 | |
CN104040130B (zh) | 排气净化装置 | |
JP4886547B2 (ja) | 排気浄化装置 | |
JP4823944B2 (ja) | 排気浄化装置 | |
JP6746530B2 (ja) | リアクタ | |
JP6282931B2 (ja) | ミキシング構造 | |
JP2015048715A (ja) | 尿素水ミキシング構造 | |
JP6756644B2 (ja) | 排気浄化装置 | |
JP6746529B2 (ja) | リアクタ | |
JP5555023B2 (ja) | 排気浄化装置 | |
JP5950631B2 (ja) | 排気浄化装置 | |
WO2017208846A1 (ja) | ミキシング構造 | |
JP6571451B2 (ja) | 排気浄化装置 | |
JP5855430B2 (ja) | 排気浄化装置 | |
JP6285255B2 (ja) | 排気浄化装置 | |
JP2019138241A (ja) | テールパイプ構造 | |
JP6752733B2 (ja) | 排気浄化装置 | |
WO2018164256A1 (ja) | 排気浄化装置 | |
JP2014114717A (ja) | 折り返し流路及びこれを備えた排気浄化装置 | |
JP2019138253A (ja) | テールパイプ構造 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20200205 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20200527 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20200720 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20200804 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20200805 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6746529 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |