CN106368773B - 一种发动机及其双旋流混合装置 - Google Patents

一种发动机及其双旋流混合装置 Download PDF

Info

Publication number
CN106368773B
CN106368773B CN201610769654.XA CN201610769654A CN106368773B CN 106368773 B CN106368773 B CN 106368773B CN 201610769654 A CN201610769654 A CN 201610769654A CN 106368773 B CN106368773 B CN 106368773B
Authority
CN
China
Prior art keywords
double
conical pipe
urea
mixing arrangement
outlet end
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
Application number
CN201610769654.XA
Other languages
English (en)
Other versions
CN106368773A (zh
Inventor
王意宝
张晓丽
王奉双
王东升
张蒿
张素英
高伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weichai Power Co Ltd
Original Assignee
Weichai Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Weichai Power Co Ltd filed Critical Weichai Power Co Ltd
Priority to CN201610769654.XA priority Critical patent/CN106368773B/zh
Priority to HUE16914862A priority patent/HUE054233T2/hu
Priority to US16/328,322 priority patent/US11365666B2/en
Priority to PCT/CN2016/106360 priority patent/WO2018040300A1/zh
Priority to EP16914862.4A priority patent/EP3508705B1/en
Priority to RU2019106803A priority patent/RU2714149C1/ru
Publication of CN106368773A publication Critical patent/CN106368773A/zh
Application granted granted Critical
Publication of CN106368773B publication Critical patent/CN106368773B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • 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
    • 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
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • 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
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • B01F25/103—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components with additional mixing means other than vortex mixers, e.g. the vortex chamber being positioned in another mixing chamber
    • 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
    • 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
    • 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
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F2025/93—Arrangements, nature or configuration of flow guiding elements
    • B01F2025/931—Flow guiding elements surrounding feed openings, e.g. jet nozzles
    • 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
    • F01N2610/08—Adding substances to exhaust gases with prior mixing of the substances with a gas, e.g. air
    • 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

Abstract

本发明公开了一种发动机及其双旋流混合装置，双旋流混合装置包括：混合管，用于将尾气和尿素混合在一起；锥形混合器，包括出口端伸入到所述混合管内的锥形管、以及设置在所述锥形管的侧壁并且沿周向分布的多个锥形旋流片，所述锥形管的进口端直径小于出口端直径；设置在所述锥形管的出口端的风扇型叶片。如此设置，本发明提供的双旋流混合装置，其能够有效避免尿素容易沉积、雾化不良以及与尾气混合不均匀的问题。

Description

一种发动机及其双旋流混合装置
技术领域
本发明涉及尾气处理技术领域，更具体地说，涉及一种发动机及其双旋流混合装置。
背景技术
选择性催化还原技术(Selective Catalytic Reduction，SCR)是指利用氨、氨水、尿素或烃类为还原剂，在氧浓度高出NOx浓度两个数量级以上的条件下，高选择性地优先把NOx还原为N2。催化的作用是降低分解反应的活化能，使其反应温度降低至合适的温度区间。
由于尿素无毒，对环境和人类身体健康不会造成大的影响，且贮存、运输方便，因此，在车辆SCR系统中更适合用作NOx的还原剂。
SCR系统的柴油车在低负荷条件下运行时容易生成尿素结晶结石等沉积物，该问题一直是影响车辆稳定运行的主要因素。车辆运行过程中，由于尿素雾化不良、混合不均匀或者分解不充分，导致喷射的尿素液滴不能实时转化为NH3，而是生成副产物，导致还原反应不稳定，从而影响到NOx排放的一致性和转化效率。
因此，如何解决现有技术中的尾气处理系统中，尿素容易沉积、雾化不良、与尾气混合不均匀的问题，成为本领域技术人员所要解决的重要技术问题。
发明内容
有鉴于此，本发明的目的在于提供一种双旋流混合装置，其能够有效避免尿素容易沉积、雾化不良以及与尾气混合不均匀的问题。本发明的目的还在于提供一种包括上述双旋流混合装置的发动机。
本发明提供的一种双旋流混合装置，包括：
混合管，用于将尾气和尿素混合在一起；
锥形混合器，包括出口端伸入到所述混合管内的锥形管、以及设置在所述锥形管的侧壁并且沿周向分布的多个锥形旋流片，所述锥形管的进口端直径小于出口端直径；
设置在所述锥形管的出口端的风扇型叶片。
优选地，所述风扇型叶片为多个，且以所述混合管的中心线为中心均匀分布。
本发明还提供了一种发动机，包括如上所述的双旋流混合装置。
本发明提供的技术方案中，混合装置包括锥形旋流片与风扇型叶片，风扇型叶片类似于现有技术中的电风扇的叶片结构，其中锥形旋流片的作用是将进入的尾气高速旋转，包裹并带走喷射出的尿素。锥形管的进口端直径小于出口端直径，与两端直径相等的旋流片相比，锥形管的出口端削弱了旋转气流的强度，减少尿素液滴在高速旋转气流的作用下着落在尿素混合管后端，减少了与尿素混合管壁面的接触，防止尿素结晶生成。经过锥形混合器的出口端之后，部分气流流经风扇型叶片，能够加快混合管的壁面处的气体流动及旋转，及时带走由于锥型旋流片的强旋流作用甩在混合管的壁面位置的尿素液膜，进一步降低尿素结晶风险，并提高尿素与气流的混合。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例中双旋流混合装置的整体示意图；
图2为本发明实施例中锥形混合器的主视示意图；
图3为本发明实施例中锥形混合器的左视示意图；
图4为本发明实施例中风扇型叶片的主视示意图；
图5为本发明实施例中风扇型叶片的左视示意图；
图1-图5中：
混合管—11、锥形管—12、锥形旋流片—13、风扇型叶片—14。
具体实施方式
本具体实施方式的目的在于提供一种双旋流混合装置，其能够有效避免尿素容易沉积、雾化不良以及与尾气混合不均匀的问题。本具体实施方式的目的还在于提供一种包括上述双旋流混合装置的发动机。
以下，参照附图对实施例进行说明。此外，下面所示的实施例不对权利要求所记载的发明内容起任何限定作用。另外，下面实施例所表示的构成的全部内容不限于作为权利要求所记载的发明的解决方案所必需的。
请参考图1-图5，本实施例提供的双旋流混合装置，包括混合管11、锥形混合器以及风扇型叶片14。
其中，混合管11用于将尾气和尿素混合在一起。锥形混合器包括出口端伸入到混合管11内的锥形管12、以及设置在锥形管12的侧壁并且沿周向分布的多个锥形旋流片13，锥形管12的进口端直径小于出口端直径。风扇型叶片14设置在锥形管12的出口端。
本实施例提供的技术方案中，风扇型叶片14类似于现有技术中的电风扇的叶片结构。其中，锥形旋流片13的作用是将进入的尾气高速旋转，包裹并带走喷射出的尿素。锥形管12的进口端直径小于出口端直径，与两端直径相等的结构相比，锥形管12的出口端削弱了旋转气流的强度，减少尿素液滴在高速旋转气流的作用下着落在尿素混合管的后端，减少了与尿素混合管11的壁面的接触，防止尿素结晶生成。经过锥形混合器的出口端之后，部分气流流经风扇型叶片14，能够加快混合管11的壁面处的气体流动及旋转，及时带走由于锥形旋流片的强旋流作用甩在混合管11的壁面位置的尿素液膜，进一步降低尿素结晶风险，并提高尿素与气流的混合。
需要说明的是，本实施例提供的双旋流混合装置，针对不同排量不同用途的发动机，可通过调整锥形旋流片13及风扇型叶片14的叶片角度、长度及数量实现对气流量的合理分配。
本实施例还提供了一种发动机，包括如上实施例中所述的双旋流混合装置。如此设置，本实施例提供的发动机，其尾气处理装置能够有效避免尿素容易沉积、雾化不良以及与尾气混合不均匀的问题。该有益效果的推导过程与上述双旋流混合装置所带来的有益效果的推导过程大体类似，故本文不再赘述。
对所公开的实施例的上述说明，使本领域专业技术人员能够实现或使用本发明。对这些实施例的多种修改对本领域的专业技术人员来说将是显而易见的，本文中所定义的一般原理可以在不脱离本发明的精神或范围的情况下，在其它实施例中实现。因此，本发明将不会被限制于本文所示的这些实施例，而是要符合与本文所公开的原理和新颖特点相一致的最宽的范围。

Claims (3)

1.一种双旋流混合装置，其特征在于，包括：
混合管，用于将尾气和尿素混合在一起；
锥形混合器，包括出口端伸入到所述混合管内的锥形管、以及设置在所述锥形管的侧壁并且沿周向分布的多个锥形旋流片，所述锥形管的进口端直径小于出口端直径；
设置在所述锥形管的出口端的风扇型叶片。
2.如权利要求1所述的双旋流混合装置，其特征在于，所述风扇型叶片为多个，且以所述混合管的中心线为中心均匀分布。
3.一种发动机，其特征在于，包括如权利要求1或2所述的双旋流混合装置。
CN201610769654.XA 2016-08-30 2016-08-30 一种发动机及其双旋流混合装置 Active CN106368773B (zh)

Priority Applications (6)

Application Number Priority Date Filing Date Title
CN201610769654.XA CN106368773B (zh) 2016-08-30 2016-08-30 一种发动机及其双旋流混合装置
HUE16914862A HUE054233T2 (hu) 2016-08-30 2016-11-18 Kettõs keverésû keverõeszköz
US16/328,322 US11365666B2 (en) 2016-08-30 2016-11-18 Generator and double-swirl mixing device thereof
PCT/CN2016/106360 WO2018040300A1 (zh) 2016-08-30 2016-11-18 一种发动机及其双旋流混合装置
EP16914862.4A EP3508705B1 (en) 2016-08-30 2016-11-18 Double-swirl mixing device
RU2019106803A RU2714149C1 (ru) 2016-08-30 2016-11-18 Генератор и его смешивающее устройство двойного закручивания

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610769654.XA CN106368773B (zh) 2016-08-30 2016-08-30 一种发动机及其双旋流混合装置

Publications (2)

Publication Number Publication Date
CN106368773A CN106368773A (zh) 2017-02-01
CN106368773B true CN106368773B (zh) 2019-03-29

Family

ID=57901707

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610769654.XA Active CN106368773B (zh) 2016-08-30 2016-08-30 一种发动机及其双旋流混合装置

Country Status (6)

Country Link
US (1) US11365666B2 (zh)
EP (1) EP3508705B1 (zh)
CN (1) CN106368773B (zh)
HU (1) HUE054233T2 (zh)
RU (1) RU2714149C1 (zh)
WO (1) WO2018040300A1 (zh)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107255043A (zh) * 2017-07-27 2017-10-17 天纳克（苏州）排放系统有限公司 发动机排气后处理封装及应用
DE112018007799T5 (de) 2018-07-03 2021-03-25 Cummins Emission Solutions Inc. Zersetzungsreaktor mit körpermischung
DE102018116831B4 (de) 2018-07-11 2020-09-03 Tenneco Gmbh Rohrmischer für Abgas
CN109252925A (zh) * 2018-10-29 2019-01-22 中船动力研究院有限公司 一种用于scr系统的混合器及scr系统
CN109453666B (zh) * 2018-11-30 2021-09-21 精诚工科汽车系统有限公司 混合器和车辆
CN110836136A (zh) * 2019-07-30 2020-02-25 万向通达股份公司 车辆后处理器及其旋叶管

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6540046B1 (en) * 2001-08-06 2003-04-01 Nelson Industries, Inc. Compact economical spark arrestor and muffler
CN201470307U (zh) * 2009-09-04 2010-05-19 东风汽车有限公司 一种发动机尾气扰流混合器
CN102242661A (zh) * 2010-05-10 2011-11-16 杭州银轮科技有限公司 一种车用选择性催化还原装置scr的静态混合器
CN103089383A (zh) * 2013-02-04 2013-05-08 江苏大学 一种用于车用柴油机scr系统的导流装置及其导流方法
CN105804840A (zh) * 2016-05-16 2016-07-27 天纳克（苏州）排放系统有限公司 排气处理装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4203807A1 (de) * 1990-11-29 1993-08-12 Man Nutzfahrzeuge Ag Vorrichtung zur katalytischen no(pfeil abwaerts)x(pfeil abwaerts)-reduktion
JP2008049306A (ja) * 2006-08-28 2008-03-06 Hitachi Ltd ガス混合装置
US8141353B2 (en) 2008-04-25 2012-03-27 Tenneco Automotive Operating Company Inc. Exhaust gas additive/treatment system and mixer for use therein
SE535219C2 (sv) 2010-10-06 2012-05-29 Scania Cv Abp Arrangemang för att införa ett vätskeformigt medium i avgaser från en förbränningsmotor
DE102011013335A1 (de) * 2011-03-08 2012-09-13 Friedrich Boysen Gmbh & Co. Kg Abgasanlage einer Brennkraftmaschine
JP5985822B2 (ja) * 2011-12-28 2016-09-06 日野自動車株式会社 排気浄化装置
US20150071826A1 (en) * 2013-05-07 2015-03-12 Tenneco Automotive Operating Company Inc. Axial flow atomization module with mixing device
US9410464B2 (en) 2013-08-06 2016-08-09 Tenneco Automotive Operating Company Inc. Perforated mixing pipe with swirler
WO2015076765A1 (en) * 2013-11-22 2015-05-28 Ford Otomotiv Sanayi Anonim Sirketi A mixer
DE102014108809C5 (de) * 2014-06-10 2019-04-25 Tenneco Gmbh Abgasmischer
US9784163B2 (en) 2015-01-22 2017-10-10 Tenneco Automotive Operating Company Inc. Exhaust aftertreatment system having mixer assembly
DE102015002974A1 (de) * 2015-03-10 2016-09-15 Man Truck & Bus Ag Vorrichtung zur Nachbehandlung von Abgas eines Kraftfahrzeugs
CN107407183B (zh) * 2015-03-30 2020-06-23 五十铃自动车株式会社 排气净化单元
CN105597956B (zh) * 2015-12-17 2018-04-27 无锡威孚力达催化净化器有限责任公司 混合器集成式喷射单元

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6540046B1 (en) * 2001-08-06 2003-04-01 Nelson Industries, Inc. Compact economical spark arrestor and muffler
CN201470307U (zh) * 2009-09-04 2010-05-19 东风汽车有限公司 一种发动机尾气扰流混合器
CN102242661A (zh) * 2010-05-10 2011-11-16 杭州银轮科技有限公司 一种车用选择性催化还原装置scr的静态混合器
CN103089383A (zh) * 2013-02-04 2013-05-08 江苏大学 一种用于车用柴油机scr系统的导流装置及其导流方法
CN105804840A (zh) * 2016-05-16 2016-07-27 天纳克（苏州）排放系统有限公司 排气处理装置

Also Published As

Publication number Publication date
US20210285356A1 (en) 2021-09-16
CN106368773A (zh) 2017-02-01
HUE054233T2 (hu) 2021-08-30
EP3508705B1 (en) 2021-01-06
EP3508705A4 (en) 2020-02-12
RU2714149C1 (ru) 2020-02-12
US11365666B2 (en) 2022-06-21
WO2018040300A1 (zh) 2018-03-08
EP3508705A1 (en) 2019-07-10

Similar Documents

Publication Publication Date Title
CN106368773B (zh) 一种发动机及其双旋流混合装置
US8899022B2 (en) Apparatus for the aftertreatment of the exhaust gases of diesel engines
JP6082968B2 (ja) 尿素ベースの還元剤の排気ガス流への投与方法
WO2011056676A2 (en) Reductant injection and decomposition system
JP2008045559A (ja) 内燃機関の排気ガス流への少なくとも１種の反応物の添加方法および内燃機関の排気ガス流の処理装置
CN101389834A (zh) 具有星形堵头扰流器的排气后处理装置
US8756918B2 (en) Dosing module for dosing an urea based reducing agent into a gas exhaust stream
CN106731932A (zh) 一种scr尿素溶液混合器
CN108087067A (zh) 旋流尿素混合装置
CN104963750A (zh) 一种用于大功率柴油机scr系统的静态混合装置
CN203584530U (zh) 用于scr后处理系统的静态混合系统
JP2009085050A (ja) 添加剤噴射弁、添加剤噴射装置、及び排気浄化システム
CN202962265U (zh) 干法选择性非催化还原装置
CN206987927U (zh) 尾气后处理混合装置及其封装
CN104888756A (zh) 一种scr脱硝催化剂及其制备方法与应用
CN106194347B (zh) 一种旋流叶片式尿素喷射混合单元
CN204933244U (zh) 燃煤电厂煤粉炉烟气中的NOx去除装置
CN102631849B (zh) 预热喷孔式静态混合器
US11708779B2 (en) Systems and methods for dry chemical reductant insertion in aftertreatment systems
CN202266317U (zh) 泡沫金属球管组合的混合单元
WO2020113456A1 (zh) 一种尿素混合器及scr系统
CN105089748A (zh) 装置，废气后处理装置
CN207307573U (zh) 一种脱硝喷枪
CN206229180U (zh) 一种高效能的脱硝设备
KR102402308B1 (ko) 환원제 공급장치

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant