JP2021156217A - ミキサー - Google Patents
ミキサー Download PDFInfo
- Publication number
- JP2021156217A JP2021156217A JP2020057411A JP2020057411A JP2021156217A JP 2021156217 A JP2021156217 A JP 2021156217A JP 2020057411 A JP2020057411 A JP 2020057411A JP 2020057411 A JP2020057411 A JP 2020057411A JP 2021156217 A JP2021156217 A JP 2021156217A
- Authority
- JP
- Japan
- Prior art keywords
- mixer
- exhaust gas
- fin members
- blades
- urea water
- 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.)
- Granted
Links
- 238000002347 injection Methods 0.000 claims abstract description 37
- 239000007924 injection Substances 0.000 claims abstract description 37
- 239000003054 catalyst Substances 0.000 claims abstract description 23
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 19
- 238000002485 combustion reaction Methods 0.000 claims abstract description 8
- 238000000746 purification Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000013019 agitation Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 abstract 1
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 description 29
- 239000007789 gas Substances 0.000 description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 12
- 229910021529 ammonia Inorganic materials 0.000 description 6
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 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
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
実施の形態では、1つのフィン部材に設けられる羽根部が3つである場合を例に挙げて説明したが、これに限定されない。1つのフィン部材に設けられる羽根部の数は、例えば、尿素水噴射装置2の噴射口の数と同数であればよい。
実施の形態では、ミキサー3を構成する複数のフィン部材が同じ形状かつ同じサイズである場合を例に挙げて説明したが、これに限定されない。例えば、ミキサー3を構成する複数のフィン部材は、互いに異なる形状やサイズであってもよい。
実施の形態では、NOx浄化触媒の一例としてSCR触媒4を例に挙げて説明したが、これに限定されない。SCR触媒4の代わりに、他の選択還元型触媒、NOx吸着触媒、または三元触媒が用いられてもよい。その場合、尿素水以外の還元剤(例えば、炭化水素等)が用いられてもよい。
2 尿素水噴射装置
3 ミキサー
3a、3b、3c フィン部材
4 SCR
Claims (5)
- 内燃機関から排出された排ガスが流れる排気管内において前記排気管内に還元剤を供給する還元剤供給装置とNOx浄化触媒との間に設けられ、前記排ガスの旋回流を発生させて前記排ガスと前記還元剤とを攪拌するミキサーであって、
前記還元剤供給装置の噴射口の数よりも多くの羽根部を備え、
前記噴射口の位置に対応する領域に前記羽根部が密集するように配置される、
ミキサー。 - 前記還元剤供給装置の噴射口の数と同数の前記羽根部を備えたフィン部材を複数有し、
前記複数のフィン部材は、
前記噴射口の位置に対応する領域に、前記複数のフィン部材それぞれの前記羽根部が密集するように配置される、
請求項1に記載のミキサー。 - 前記複数のフィン部材は、
前記排ガスの流れ方向において、所定の間隔を空けて設けられている、
請求項2に記載のミキサー。 - 前記複数のフィン部材は、
同一形状および同一サイズである、
請求項2または3に記載のミキサー。 - 前記複数のフィン部材は、
互いに前記排気管の周方向にずれて設けられている、
請求項4に記載のミキサー。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020057411A JP7310676B2 (ja) | 2020-03-27 | 2020-03-27 | ミキサー |
CN202180023457.2A CN115315572B (zh) | 2020-03-27 | 2021-03-24 | 混合器 |
PCT/JP2021/012289 WO2021193735A1 (ja) | 2020-03-27 | 2021-03-24 | ミキサー |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020057411A JP7310676B2 (ja) | 2020-03-27 | 2020-03-27 | ミキサー |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021156217A true JP2021156217A (ja) | 2021-10-07 |
JP7310676B2 JP7310676B2 (ja) | 2023-07-19 |
Family
ID=77892221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020057411A Active JP7310676B2 (ja) | 2020-03-27 | 2020-03-27 | ミキサー |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP7310676B2 (ja) |
CN (1) | CN115315572B (ja) |
WO (1) | WO2021193735A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015217357A1 (de) * | 2015-09-10 | 2017-03-16 | Volkswagen Aktiengesellschaft | Mischvorrichtung und Mischersystem für eine Abgasanlage eines Verbrennungsmotors |
JP2019143532A (ja) * | 2018-02-20 | 2019-08-29 | いすゞ自動車株式会社 | 還元剤噴射装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101900018A (zh) * | 2010-07-06 | 2010-12-01 | 清华大学 | 一种尿素混合装置 |
JP6347474B2 (ja) * | 2013-07-31 | 2018-06-27 | カルソニックカンセイ株式会社 | 排気浄化装置 |
JP2017214884A (ja) * | 2016-06-01 | 2017-12-07 | いすゞ自動車株式会社 | 排気浄化システム |
CN109414662B (zh) * | 2016-07-07 | 2021-09-17 | 卡特彼勒公司 | 用于废气后处理系统的双混合器 |
US10138789B1 (en) * | 2017-07-18 | 2018-11-27 | GM Global Technology Operations LLC | Exhaust gas treatment systems utilizing a plurality of reduced-resistance mixers |
-
2020
- 2020-03-27 JP JP2020057411A patent/JP7310676B2/ja active Active
-
2021
- 2021-03-24 WO PCT/JP2021/012289 patent/WO2021193735A1/ja active Application Filing
- 2021-03-24 CN CN202180023457.2A patent/CN115315572B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015217357A1 (de) * | 2015-09-10 | 2017-03-16 | Volkswagen Aktiengesellschaft | Mischvorrichtung und Mischersystem für eine Abgasanlage eines Verbrennungsmotors |
JP2019143532A (ja) * | 2018-02-20 | 2019-08-29 | いすゞ自動車株式会社 | 還元剤噴射装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2021193735A1 (ja) | 2021-09-30 |
CN115315572B (zh) | 2024-04-02 |
JP7310676B2 (ja) | 2023-07-19 |
CN115315572A (zh) | 2022-11-08 |
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