WO2019192123A1 - 进气锥及其尾气后处理装置 - Google Patents

进气锥及其尾气后处理装置 Download PDF

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Publication number
WO2019192123A1
WO2019192123A1 PCT/CN2018/100386 CN2018100386W WO2019192123A1 WO 2019192123 A1 WO2019192123 A1 WO 2019192123A1 CN 2018100386 W CN2018100386 W CN 2018100386W WO 2019192123 A1 WO2019192123 A1 WO 2019192123A1
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Prior art keywords
annular end
carrier assembly
aftertreatment
annular
exhaust
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PCT/CN2018/100386
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English (en)
French (fr)
Inventor
吴涛涛
李伟
汪林辉
吕春虎
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天纳克（苏州）排放系统有限公司
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Publication of WO2019192123A1 publication Critical patent/WO2019192123A1/zh

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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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F01N13/0097—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
    • 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
    • F01N3/02—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
    • 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
    • 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
    • F01N3/105—General auxiliary catalysts, e.g. upstream or downstream of the main catalyst
    • F01N3/106—Auxiliary oxidation catalysts
    • 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
    • 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]
    • 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
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes

Definitions

  • the invention relates to an inlet cone and an exhaust aftertreatment device thereof, and belongs to the technical field of engine exhaust aftertreatment.
  • an intake cone for an exhaust gas after-treatment device the intake cone includes an inner casing, an outer casing sleeved outside the inner casing, and an installation At least one sensor mount on the outer casing, the outer casing including a first annular end, a second annular end opposite the first annular end, and the first annular end and the second annular end a tapered surface, the inner casing is flared, the inner casing including a third annular end, a fourth annular end opposite the third annular end, and the third annular end and the a circular arc surface between the fourth annular ends; the first annular end is sealed with the third annular end, and the second annular end is sealed with the fourth annular end, the circular arc surface An annular space is provided between the tapered surface and the sensor seat extends into the annular space.
  • the circular arc surface is provided with an opening facing the sensor holder.
  • the third annular end is located inside the first annular end and is in contact with the first annular end.
  • the fourth annular end is located inside the second annular end and is in contact with the second annular end.
  • the third annular end is an air inlet
  • the fourth annular end is an air outlet
  • the invention further relates to an exhaust aftertreatment device comprising a first aftertreatment carrier assembly, a second aftertreatment carrier assembly downstream of the first aftertreatment carrier assembly, downstream of the second aftertreatment carrier assembly a third post-treatment carrier assembly and a mixer assembly between the second post-treatment carrier assembly and the third post-treatment carrier assembly, wherein the mixer assembly includes a mixing tube, the direction of extension of the mixing tube
  • the exhaust aftertreatment device further includes an intake cone connected upstream of the first aftertreatment carrier assembly, the intake cone being the aforementioned intake cone, perpendicular to an extension direction of the exhaust aftertreatment device.
  • the first post-treatment carrier assembly includes an oxidation catalyst
  • the second post-treatment carrier assembly includes a diesel particulate trap
  • the third post-treatment carrier assembly includes selective catalytic reduction Agent.
  • the exhaust gas aftertreatment device is not provided with an air distribution plate located upstream of the first aftertreatment carrier assembly.
  • the present invention adjusts the uniformity of airflow into the end face of the carrier by adjusting the inner surface of the inner casing by adjusting the inner shape of the inner casing of the inner casing, and solves the problem of back pressure and uniformity.
  • Figure 1 is a partially exploded perspective view of an exhaust gas aftertreatment device of the present invention.
  • Figure 2 is a schematic cross-sectional view of the exhaust gas aftertreatment device of the present invention.
  • Figure 3 is a front elevational view of the exhaust aftertreatment device of the present invention.
  • Figure 4 is an exploded perspective view of the intake cone of the present invention.
  • Figure 5 is a front elevational view of the intake cone of the present invention.
  • Figure 6 is a schematic cross-sectional view of the inlet cone of the present invention.
  • the present invention discloses an exhaust aftertreatment device 100 for treating exhaust gas of an engine to reduce emissions of harmful substances.
  • the exhaust aftertreatment device 100 includes a first aftertreatment carrier assembly 1 , a second aftertreatment carrier assembly 2 downstream of the first aftertreatment carrier assembly 1 , and a downstream of the second aftertreatment carrier assembly 2 a third post-treatment carrier assembly 3 and a mixer assembly 4 between the second after-treatment carrier assembly 2 and the third after-treatment carrier assembly 3, wherein the mixer assembly 4 includes a mixing tube 41, The extending direction of the mixing tube 41 is perpendicular to the extending direction of the exhaust aftertreatment device 100.
  • the first aftertreatment carrier assembly 1 comprises an oxidation catalyst (DOC)
  • the second aftertreatment carrier assembly 2 comprises a diesel particulate trap (DPF)
  • the third The post-treatment carrier assembly 3 includes a selective catalytic reducing agent (SCR).
  • the exhaust aftertreatment device 100 further includes an intake cone 5 coupled upstream of the first aftertreatment carrier assembly 1.
  • the intake cone 5 includes an inner casing 51, an outer casing 52 sleeved outside the inner casing 51, and at least one sensor seat 53 mounted on the outer casing 52.
  • the outer casing 52 includes a first annular end 521, a second annular end 522 opposite the first annular end 521, and a tapered surface 523 between the first annular end 521 and the second annular end 522.
  • the inner casing 51 has a flared shape to simultaneously balance back pressure and uniformity.
  • the inner casing 51 includes a third annular end 511, a fourth annular end 512 opposite to the third annular end 511, and an arc between the third annular end 511 and the fourth annular end 512. Face 513.
  • the first annular end 521 is sealed with the third annular end 511, and the second annular end 522 is sealed with the fourth annular end 512.
  • the circular arc surface 513 and the tapered surface 523 An annular space 54 is provided between the sensor seats 53 extending into the annular space 54.
  • the circular arc surface 513 is provided with an opening 514 facing the sensor holder 53 to facilitate detection of parameters of the exhaust gas.
  • the third annular end 511 is located inside the first annular end 521 and is in contact with the first annular end 521.
  • the fourth annular end 512 is located inside the second annular end 522 and is in contact with the second annular end 522.
  • the third annular end 511 is an air inlet, and the fourth annular end 512 is an air outlet.
  • the present invention provides a flared inner casing 51 and eliminates the air distribution plate upstream of the carrier.
  • the uniformity of the airflow into the end face of the carrier is adjusted by adjusting the arc shape of the inner surface of the inner casing 51, and good uniformity is obtained without increasing the back pressure.

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  • 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)
  • Materials Engineering (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

一种进气锥（5）及其尾气后处理装置（100），进气锥（5）包括内壳体（51）、套接在内壳体（51）外部的外壳体（52）以及安装在外壳体（52）上的至少一个传感器座（53）。外壳体（52）包括第一环形端（521）、与第一环形端（521）相对的第二环形端（522）以及位于第一环形端（521）与第二环形端（522）之间的锥面（523）。内壳体（51）呈喇叭状，包括第三环形端（511）、与第三环形端（511）相对的第四环形端（512）以及位于第三环形端（511）与第四环形端（512）之间的圆弧面（513）。第一环形端（521）与第三环形端（511）密封在一起，第二环形端（522）与第四环形端（512）密封在一起。圆弧面（513）与锥面（523）之间设有一个环形空间（54），传感器座（53）延伸入环形空间（54）中。通过设置喇叭状的内壳体（51），同时解决了背压和均匀性的问题。

Description

进气锥及其尾气后处理装置
本申请要求了申请日为2018年4月2日、申请号为201810284625.3、发明名称为“进气锥及其尾气后处理装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种进气锥及其尾气后处理装置，属于发动机尾气后处理技术领域。
背景技术
研究表明尾气后处理系统(例如选择性催化还原系统，SCR系统)的背压以及管路中气流的均匀程度对系统的整体性能和耐久性能有重要的影响。为了提高气流通过载体时的均匀性，通常在尾气后处理系统的进口处设置多孔气流分配板，然而，这种设计一方面增加了成本，另一方面也会增大系统的背压。
发明内容
本发明的目的在于提供一种兼顾背压以及均匀性的进气锥及其尾气后处理装置。
为实现上述目的，本发明采用如下技术方案：一种进气锥，用于尾气后处理装置上，所述进气锥包括内壳体、套接在所述内壳体外部的外壳体以及安装在所述外壳体上的至少一个传感器座，所述外壳体包括第一环形端、与所述第一环形端相对的第二环形端以及位于所述第一环形端与所述第二环形端之间的锥面，所述内壳体呈喇叭状，所述内壳体包括第三环形端、与所述第三环形端相对的第四环形端以及位于所述第三环形端与所述第四环形端之间的圆弧面；所述第一环形端与所述第三环形端密封在一起，所述第二环形端与所述第四环形端密封在一起，所述圆弧面与所述锥面之间设有一个环形空间，所述传感器座延伸入所述环形空间中。
作为本发明进一步改进的技术方案，所述圆弧面设有正对所述传感器座的开口。
作为本发明进一步改进的技术方案，所述第三环形端位于所述第一环形端的内侧且与所述第一环形端相接触。
作为本发明进一步改进的技术方案，所述第四环形端位于所述第二环形端的内侧且与所述第二环形端相接触。
作为本发明进一步改进的技术方案，所述第三环形端为进气口，所述第四环形端为出气口。
本发明还涉及一种尾气后处理装置，其包括第一后处理载体组件、位于所述第一后处理载体组件的下游的第二后处理载体组件、位于所述第二后处理载体组件的下游的第三后处理载体组件以及位于所述第二后处理载体组件与所述第三后处理载体组件之间的混合器组件，其中所述混合器组件包括混合管，所述混合管的延伸方向垂直于所述尾气后处理装置的延伸方向，所述尾气后处理装置还包括连接在所述第一后处理载体组件的上游的进气锥，所述进气锥为前述的进气锥。
作为本发明进一步改进的技术方案，所述第一后处理载体组件包括氧化催化器，所述第二后处理载体组件包括柴油颗粒捕集器，所述第三后处理载体组件包括选择性催化还原剂。
作为本发明进一步改进的技术方案，所述尾气后处理装置未设置位于所述第一后处理载体组件的上游的气流分配板。
相较于现有技术，本发明通过设置喇叭状的内壳体，通过调整内壳体的内表面弧形来调整气流进入载体端面时的均匀性，同时解决了背压和均匀性的问题。
附图说明
图1是本发明尾气后处理装置的部分立体分解图。
图2是本发明尾气后处理装置的剖面示意图。
图3是本发明尾气后处理装置的主视图。
图4是本发明进气锥的立体分解图。
图5是本发明进气锥的主视图。
图6是本发明进气锥的剖面示意图。
具体实施方式
请参图1至图6所示，本发明揭示了一种尾气后处理装置100，用以处理发动机的尾气以降低有害物质的排放。所述尾气后处理装置100包括第一后处理载体组件1、位于所述第一后处理载体组件1的下游的第二后处理载体组件2、位于所述第二后处理载体组件2的下游的第三后处理载体组件3以及位于所述第二后处理载体组件2与所述第三后处理载体组件3之间的混合器组 件4，其中所述混合器组件4包括混合管41，所述混合管41的延伸方向垂直于所述尾气后处理装置100的延伸方向。
在本发明图示的实施方式中，所述第一后处理载体组件1包括氧化催化器(DOC)，所述第二后处理载体组件2包括柴油颗粒捕集器(DPF)，所述第三后处理载体组件3包括选择性催化还原剂(SCR)。
所述尾气后处理装置100还包括连接在所述第一后处理载体组件1的上游的进气锥5。
所述进气锥5包括内壳体51、套接在所述内壳体51外部的外壳体52以及安装在所述外壳体52上的至少一个传感器座53。所述外壳体52包括第一环形端521、与所述第一环形端521相对的第二环形端522以及位于所述第一环形端521与所述第二环形端522之间的锥面523。所述内壳体51呈喇叭状，以同时兼顾背压与均匀性。所述内壳体51包括第三环形端511、与所述第三环形端511相对的第四环形端512以及位于所述第三环形端511与所述第四环形端512之间的圆弧面513。所述第一环形端521与所述第三环形端511密封在一起，所述第二环形端522与所述第四环形端512密封在一起，所述圆弧面513与所述锥面523之间设有一个环形空间54，所述传感器座53延伸入所述环形空间54中。
所述圆弧面513设有正对所述传感器座53的开口514，以便于检测到排气的参数。所述第三环形端511位于所述第一环形端521的内侧且与所述第一环形端521相接触。所述第四环形端512位于所述第二环形端522的内侧且与所述第二环形端522相接触。所述第三环形端511为进气口，所述第四环形端512为出气口。
相较于现有技术，本发明设置了呈喇叭状的内壳体51，并取消了载体上游的气流分配板。通过内保温，利用流体的黏性特征，通过调整内壳体51的内表面弧形来调整气流进入载体端面时的均匀性，在不提高背压的情况下获得了较好的均匀性。
另外，以上实施例仅用于说明本发明而并非限制本发明所描述的技术方案，对本说明书的理解应该以所属技术领域的技术人员为基础，尽管本说明书参照上述的实施例对本发明已进行了详细的说明，但是，本领域的普通技术人员应当理解，所属技术领域的技术人员仍然可以对本发明进行修改或者等同替换，而一切不脱离本发明的精神和范围的技术方案及其改进，均应涵盖在本发明的权利要求范围内。

Claims (8)

  1. 一种进气锥，用于尾气后处理装置上，所述进气锥包括内壳体、套接在所述内壳体外部的外壳体以及安装在所述外壳体上的至少一个传感器座，所述外壳体包括第一环形端、与所述第一环形端相对的第二环形端以及位于所述第一环形端与所述第二环形端之间的锥面，其特征在于，所述内壳体呈喇叭状，所述内壳体包括第三环形端、与所述第三环形端相对的第四环形端以及位于所述第三环形端与所述第四环形端之间的圆弧面；所述第一环形端与所述第三环形端密封在一起，所述第二环形端与所述第四环形端密封在一起，所述圆弧面与所述锥面之间设有一个环形空间，所述传感器座延伸入所述环形空间中。
  2. 如权利要求1所述的进气锥，其特征在于：所述圆弧面设有正对所述传感器座的开口。
  3. 如权利要求1所述的进气锥，其特征在于：所述第三环形端位于所述第一环形端的内侧且与所述第一环形端相接触。
  4. 如权利要求1所述的进气锥，其特征在于：所述第四环形端位于所述第二环形端的内侧且与所述第二环形端相接触。
  5. 如权利要求1所述的进气锥，其特征在于：所述第三环形端为进气口，所述第四环形端为出气口。
  6. 一种尾气后处理装置，其包括第一后处理载体组件、位于所述第一后处理载体组件的下游的第二后处理载体组件、位于所述第二后处理载体组件的下游的第三后处理载体组件以及位于所述第二后处理载体组件与所述第三后处理载体组件之间的混合器组件，其中所述混合器组件包括混合管，所述混合管的延伸方向垂直于所述尾气后处理装置的延伸方向，其特征在于：所述尾气后处理装置还包括连接在所述第一后处理载体组件的上游的进气锥，所述进气锥为权利要求1至5项中任意一项所述的进气锥。
  7. 如权利要求6所述的尾气后处理装置，其特征在于：所述第一后处理载体组件包括氧化催化器，所述第二后处理载体组件包括柴油颗粒捕集器，所述第三后处理载体组件包括选择性催化还原剂。
  8. 如权利要求6所述的尾气后处理装置，其特征在于：所述尾气后处理装置未设置位于所述第一后处理载体组件的上游的气流分配板。
PCT/CN2018/100386 2018-04-02 2018-08-14 进气锥及其尾气后处理装置 WO2019192123A1 (zh)

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