WO2019011034A1 - Exhaust gas after-treatment device - Google Patents

Exhaust gas after-treatment device Download PDF

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Publication number
WO2019011034A1
WO2019011034A1 PCT/CN2018/084385 CN2018084385W WO2019011034A1 WO 2019011034 A1 WO2019011034 A1 WO 2019011034A1 CN 2018084385 W CN2018084385 W CN 2018084385W WO 2019011034 A1 WO2019011034 A1 WO 2019011034A1
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WIPO (PCT)
Prior art keywords
aftertreatment device
housing
mounting
exhaust gas
end cap
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PCT/CN2018/084385
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French (fr)
Chinese (zh)
Inventor
张霞
韩文军
张仕玉
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天纳克（苏州）排放系统有限公司
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Publication of WO2019011034A1 publication Critical patent/WO2019011034A1/en

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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
    • 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
    • F01N3/18—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
    • F01N3/24—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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea

Definitions

  • the invention relates to an exhaust gas aftertreatment device, and belongs to the technical field of engine exhaust aftertreatment.
  • the present invention adopts the following technical solutions:
  • an exhaust gas aftertreatment device includes a casing, a post-processing carrier installed in the casing, and a mixing assembly at least partially located in the casing, the mixing component being located Upstream of the post-treatment carrier, wherein the housing is provided with a mounting seat for mounting a urea nozzle, the housing is provided with a plurality of grooves, and the mounting seat is provided with a mounting hole at least partially accommodating the urea nozzle and a protrusion Several mounting claws into the corresponding grooves.
  • the housing includes an end cover, and the groove is disposed on the end cover.
  • the mixing assembly includes a mixing tube including a plurality of swirl sheets and a plurality of perforations adjacent to the mount.
  • the housing is provided with a partition, a gap is formed between the partition and the end cover, and the mixing tube is located in the first cavity; the exhaust gas
  • the aftertreatment device also includes an intake pipe extending through the end cap to extend into the first cavity, the intake pipe and the mixing tube being parallel to each other.
  • the post-treatment carrier is located downstream of the separator.
  • the partition plate is provided with a recess corresponding to the intake pipe and a plurality of openings at a periphery of the recess.
  • the mixing tube is spaced apart from the partition by a certain distance.
  • the end cap has a flat shape.
  • the mounting claw is provided with a threaded hole for fixing the urea nozzle.
  • the post-treatment support comprises a selective catalytic reducing agent.
  • the present invention improves the resistance to crystallization by providing a mounting claw projecting into the corresponding groove, using a suitable mount thickness and matching of the mount to the mixing assembly.
  • Figure 1 is a perspective view of an exhaust gas aftertreatment device of the present invention.
  • Figure 2 is a perspective view showing a portion of the housing of Figure 1 removed.
  • FIG. 3 is a perspective view of the intake pipe, the mixing pipe, the end cover, and the nozzle holder of FIG. 2.
  • Fig. 4 is a front view of Fig. 3.
  • Figure 5 is a left side view of Figure 3.
  • Fig. 6 is a schematic cross-sectional view taken along line A-A of Fig. 3.
  • Figure 7 is a partial exploded perspective view of Figure 3.
  • Figure 8 is a partially exploded perspective view of another angle of Figure 7.
  • Figure 9 is a right side view of Figure 3.
  • the present invention discloses an exhaust aftertreatment device 100 for treating exhaust gas from an engine.
  • the exhaust aftertreatment device 100 includes a housing 1, a post-treatment carrier 2 mounted within the housing 1, and a mixing assembly 3 at least partially located within the housing 1.
  • the mixing assembly 3 is located upstream of the aftertreatment carrier 2.
  • the post-treatment carrier 2 includes, but is not limited to, a selective catalytic reducing agent (SCR).
  • the housing 1 is cylindrical and includes an end cap 11 and a partition 12.
  • the first cavity 10 is formed between the partition 12 and the end cover 11.
  • the end cap 11 has a flat shape and is provided with a plurality of grooves 111.
  • the housing 1 is provided with a mount 13 for mounting a urea nozzle (not shown).
  • the mounting seat 13 is provided with mounting holes 131 at least partially accommodating the urea nozzles and a plurality of mounting claws 132 projecting into the corresponding grooves 111.
  • the mounting claw 132 is provided with a threaded hole 133 for fixing the urea nozzle.
  • the mixing assembly 3 includes a mixing tube 31 located within the first cavity 10.
  • the mixing tube 31 includes a plurality of swirling fins 311 and a plurality of perforations 312 adjacent to the mounting seat 13.
  • the exhaust aftertreatment device 100 further includes an intake pipe 14 that extends through the end cover 11 to extend into the first cavity 10, the intake pipe 14 and the mixing pipe 31 being parallel to each other.
  • the partition plate 12 is provided with a recess 121 corresponding to the intake pipe 14 and a plurality of openings 122 at the periphery of the recess 121.
  • the recess 121 is used to reverse the air flow, and the opening 122 is used to adjust the back pressure and uniformly distribute the exhaust mixture.
  • the mixing tube 31 is spaced apart from the partition 12 by a certain distance to ensure a mixing distance.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

An exhaust gas after-treatment device (100), comprising a housing (1), an after-treatment carrier (2) mounted in the housing (1), and a mixing assembly (3) located, at least in part, in the housing (1). The mixing assembly (3) is located at the upstream of the after-treatment carrier (2); the housing (1) is provided with a mounting seat (13) for mounting a urea injector; the housing (1) is provided with several grooves (111); the mounting seat (13) is provided with a mounting hole (131) for accommodating, at least in part, the urea injector, and several mounting claws (132) projecting into the corresponding grooves (111). The exhaust gas after-treatment device can eliminate urea crystallization in the mounting seat area or urea crystallization in the mixing assembly of the mounting seat area, and thus improves the anti-crystallization capability.

Description

尾气后处理装置Exhaust aftertreatment device
本申请要求了申请日为2017年7月11日、申请号为201710561341.X、发明名称为“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。The present application claims the priority of the Chinese Patent Application Serial No. JP-A------------
技术领域Technical field
本发明涉及一种尾气后处理装置，属于发动机尾气后处理技术领域。The invention relates to an exhaust gas aftertreatment device, and belongs to the technical field of engine exhaust aftertreatment.
背景技术Background technique
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)管路中氨分布的均匀程度对系统的整体性能和耐久性能有重要的影响。另外，用以安装尿素喷嘴的喷嘴座区域容易产生尿素结晶问题。Studies have shown that the uniformity of ammonia distribution in the exhaust gas aftertreatment system (eg, selective catalytic reduction system, SCR system) has an important impact on the overall performance and durability of the system. In addition, the nozzle seating area for mounting the urea nozzle is prone to urea crystallization problems.
因此，有必要提供一种新型的尾气后处理装置，以解决上述技术问题。Therefore, it is necessary to provide a novel exhaust gas aftertreatment device to solve the above technical problems.
发明内容Summary of the invention
本发明的目的在于提供一种抗结晶能力较强的尾气后处理装置。It is an object of the present invention to provide an exhaust gas aftertreatment device which is more resistant to crystallization.
为实现上述目的，本发明采用如下技术方案：To achieve the above object, the present invention adopts the following technical solutions:
作为本发明进一步改进的技术方案，一种尾气后处理装置，其包括壳体、安装于所述壳体内的后处理载体以及至少部分位于所述壳体内的混合组件，所述混合组件位于所述后处理载体的上游，其中所述壳体设有用以安装尿素喷嘴的安装座，所述壳体设有若干凹槽，所述安装座设有至少部分容纳所述尿素喷嘴的安装孔以及凸伸入对应的凹槽中的若干安装爪。As a further improved technical solution of the present invention, an exhaust gas aftertreatment device includes a casing, a post-processing carrier installed in the casing, and a mixing assembly at least partially located in the casing, the mixing component being located Upstream of the post-treatment carrier, wherein the housing is provided with a mounting seat for mounting a urea nozzle, the housing is provided with a plurality of grooves, and the mounting seat is provided with a mounting hole at least partially accommodating the urea nozzle and a protrusion Several mounting claws into the corresponding grooves.
作为本发明进一步改进的技术方案，所述壳体包括端盖，所述凹槽设置在所述端盖上。As a further improved technical solution of the present invention, the housing includes an end cover, and the groove is disposed on the end cover.
作为本发明进一步改进的技术方案，所述混合组件包括混合管，所述混合管包括若干旋流片以及靠近所述安装座的若干穿孔。As a further improved technical solution of the present invention, the mixing assembly includes a mixing tube including a plurality of swirl sheets and a plurality of perforations adjacent to the mount.
作为本发明进一步改进的技术方案，所述壳体设有隔板，所述隔板与所述端盖之间形成第一腔体，所述混合管位于所述第一腔体内；所述尾气后处理装置还包括穿过所述端盖以延伸入所述第 一腔体内的进气管，所述进气管与所述混合管相互平行。As a further improved technical solution of the present invention, the housing is provided with a partition, a gap is formed between the partition and the end cover, and the mixing tube is located in the first cavity; the exhaust gas The aftertreatment device also includes an intake pipe extending through the end cap to extend into the first cavity, the intake pipe and the mixing tube being parallel to each other.
作为本发明进一步改进的技术方案，所述后处理载体位于所述隔板的下游。As a further improved technical solution of the present invention, the post-treatment carrier is located downstream of the separator.
作为本发明进一步改进的技术方案，所述隔板设有与所述进气管相对应的凹陷以及位于所述凹陷外围的若干开孔。As a further improved technical solution of the present invention, the partition plate is provided with a recess corresponding to the intake pipe and a plurality of openings at a periphery of the recess.
作为本发明进一步改进的技术方案，所述混合管与所述隔板间隔一定的距离。As a further improved technical solution of the present invention, the mixing tube is spaced apart from the partition by a certain distance.
作为本发明进一步改进的技术方案，所述端盖呈平板状。As a further improved technical solution of the present invention, the end cap has a flat shape.
作为本发明进一步改进的技术方案，所述安装爪设有用以固定所述尿素喷嘴的螺纹孔。As a further improved technical solution of the present invention, the mounting claw is provided with a threaded hole for fixing the urea nozzle.
作为本发明进一步改进的技术方案，所述后处理载体包括选择性催化还原剂。As a further improved technical solution of the present invention, the post-treatment support comprises a selective catalytic reducing agent.
相较于现有技术，本发明通过设置凸伸入对应的凹槽中的安装爪，采用合适的安装座厚度以及安装座与混合组件的匹配，提高了抗结晶的能力。Compared with the prior art, the present invention improves the resistance to crystallization by providing a mounting claw projecting into the corresponding groove, using a suitable mount thickness and matching of the mount to the mixing assembly.
附图说明DRAWINGS
图1是本发明尾气后处理装置的立体示意图。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of an exhaust gas aftertreatment device of the present invention.
图2是去除图1中的部分壳体后的立体示意图。Figure 2 is a perspective view showing a portion of the housing of Figure 1 removed.
图3是图2中进气管、混合管、端盖以及喷嘴座的立体示意图。3 is a perspective view of the intake pipe, the mixing pipe, the end cover, and the nozzle holder of FIG. 2.
图4是图3的主视图。Fig. 4 is a front view of Fig. 3.
图5是图3的左视图。Figure 5 is a left side view of Figure 3.
图6是沿图3中A-A线的剖面示意图。Fig. 6 is a schematic cross-sectional view taken along line A-A of Fig. 3.
图7是图3的部分立体分解图。Figure 7 is a partial exploded perspective view of Figure 3.
图8是图7另一角度的部分立体分解图。Figure 8 is a partially exploded perspective view of another angle of Figure 7.
图9是图3的右视图。Figure 9 is a right side view of Figure 3.
具体实施方式Detailed ways
请参图1至图9所示，本发明揭示了一种尾气后处理装置100，用于处理发动机的尾气。所述尾气后处理装置100包括壳体1、安装于所述壳体1内的后处理载体2以及至少部分位于所述壳体1内的混合组件3。所述混合组件3位于所述后处理载体2的上游。所述后处理载体2包括但不限于选择性催化还原剂(SCR)。Referring to Figures 1 through 9, the present invention discloses an exhaust aftertreatment device 100 for treating exhaust gas from an engine. The exhaust aftertreatment device 100 includes a housing 1, a post-treatment carrier 2 mounted within the housing 1, and a mixing assembly 3 at least partially located within the housing 1. The mixing assembly 3 is located upstream of the aftertreatment carrier 2. The post-treatment carrier 2 includes, but is not limited to, a selective catalytic reducing agent (SCR).
在本发明图示的实施方式中，所述壳体1呈圆筒状，其包括端盖11以及隔板12。其中，所 述隔板12与所述端盖11之间形成第一腔体10。所述端盖11呈平板状，其设有若干凹槽111。In the illustrated embodiment of the invention, the housing 1 is cylindrical and includes an end cap 11 and a partition 12. Wherein, the first cavity 10 is formed between the partition 12 and the end cover 11. The end cap 11 has a flat shape and is provided with a plurality of grooves 111.
所述壳体1设有用以安装尿素喷嘴(未图示)的安装座13。所述安装座13设有至少部分容纳所述尿素喷嘴的安装孔131以及凸伸入对应的凹槽111中的若干安装爪132。如此设置，采用合适的安装座13厚度以及安装座13与混合组件3的匹配，消除安装座区域结晶或来源于安装座区域的混合组件内结晶，提高了抗结晶的能力。所述安装爪132设有用以固定所述尿素喷嘴的螺纹孔133。The housing 1 is provided with a mount 13 for mounting a urea nozzle (not shown). The mounting seat 13 is provided with mounting holes 131 at least partially accommodating the urea nozzles and a plurality of mounting claws 132 projecting into the corresponding grooves 111. With such a configuration, the thickness of the appropriate mount 13 and the matching of the mount 13 to the mixing assembly 3 eliminate the crystallization of the mount region or the crystallization within the mixing assembly from the mount region, improving the resistance to crystallization. The mounting claw 132 is provided with a threaded hole 133 for fixing the urea nozzle.
所述混合组件3包括位于所述第一腔体10内的混合管31。所述混合管31包括若干旋流片311以及靠近所述安装座13的若干穿孔312。所述尾气后处理装置100还包括穿过所述端盖11以延伸入所述第一腔体10内的进气管14，所述进气管14与所述混合管31相互平行。The mixing assembly 3 includes a mixing tube 31 located within the first cavity 10. The mixing tube 31 includes a plurality of swirling fins 311 and a plurality of perforations 312 adjacent to the mounting seat 13. The exhaust aftertreatment device 100 further includes an intake pipe 14 that extends through the end cover 11 to extend into the first cavity 10, the intake pipe 14 and the mixing pipe 31 being parallel to each other.
所述隔板12设有与所述进气管14相对应的凹陷121以及位于所述凹陷121外围的若干开孔122。所述凹陷121用以使气流反向，所述开孔122用以调整背压和均匀分布排气混合物。所述混合管31与所述隔板12间隔一定的距离，以保证混合距离。The partition plate 12 is provided with a recess 121 corresponding to the intake pipe 14 and a plurality of openings 122 at the periphery of the recess 121. The recess 121 is used to reverse the air flow, and the opening 122 is used to adjust the back pressure and uniformly distribute the exhaust mixture. The mixing tube 31 is spaced apart from the partition 12 by a certain distance to ensure a mixing distance.
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。In addition, the above embodiments are only for illustrating the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of the present specification should be based on those skilled in the art, although the present specification has been carried out with reference to the above embodiments. DETAILED DESCRIPTION OF THE INVENTION However, those skilled in the art should understand that the invention may be modified or equivalently replaced by those skilled in the art without departing from the spirit and scope of the invention. It is intended to be included within the scope of the appended claims.

Claims (10)

  1. 一种尾气后处理装置，其包括壳体、安装于所述壳体内的后处理载体以及至少部分位于所述壳体内的混合组件，所述混合组件位于所述后处理载体的上游，其中所述壳体设有用以安装尿素喷嘴的安装座，其特征在于，所述壳体设有若干凹槽，所述安装座设有至少部分容纳所述尿素喷嘴的安装孔以及凸伸入对应的凹槽中的若干安装爪。An exhaust aftertreatment device comprising a housing, a post-treatment carrier mounted within the housing, and a mixing assembly at least partially disposed within the housing, the mixing assembly being located upstream of the post-processing carrier, wherein The housing is provided with a mounting seat for mounting the urea nozzle, wherein the housing is provided with a plurality of grooves, and the mounting seat is provided with a mounting hole at least partially accommodating the urea nozzle and protruding into the corresponding groove Several mounting claws in the middle.
  2. 如权利要求1所述的尾气后处理装置，其特征在于：所述壳体包括端盖，所述凹槽设置在所述端盖上。The exhaust aftertreatment device of claim 1 wherein said housing includes an end cap and said recess is disposed on said end cap.
  3. 如权利要求2所述的尾气后处理装置，其特征在于：所述混合组件包括混合管，所述混合管包括若干旋流片以及靠近所述安装座的若干穿孔。The exhaust aftertreatment device of claim 2 wherein said mixing assembly comprises a mixing tube comprising a plurality of swirling vanes and a plurality of perforations adjacent said mounting.
  4. 如权利要求3所述的尾气后处理装置，其特征在于：所述壳体设有隔板，所述隔板与所述端盖之间形成第一腔体，所述混合管位于所述第一腔体内；所述尾气后处理装置还包括穿过所述端盖以延伸入所述第一腔体内的进气管，所述进气管与所述混合管相互平行。The exhaust gas after-treatment device according to claim 3, wherein the casing is provided with a partition, a gap is formed between the partition and the end cap, and the mixing tube is located at the first An exhaust aftertreatment device further includes an intake pipe extending through the end cap to extend into the first cavity, the intake pipe and the mixing pipe being parallel to each other.
  5. 如权利要求4所述的尾气后处理装置，其特征在于：所述后处理载体位于所述隔板的下游。The exhaust aftertreatment device of claim 4 wherein said post-treatment carrier is located downstream of said separator.
  6. 如权利要求4所述的尾气后处理装置，其特征在于：所述隔板设有与所述进气管相对应的凹陷以及位于所述凹陷外围的若干开孔。The exhaust gas aftertreatment device according to claim 4, wherein said partition plate is provided with a recess corresponding to said intake pipe and a plurality of openings at a periphery of said recess.
  7. 如权利要求4所述的尾气后处理装置，其特征在于：所述混合管与所述隔板间隔一定的距离。The exhaust gas aftertreatment device according to claim 4, wherein said mixing tube is spaced apart from said partition by a certain distance.
  8. 如权利要求2所述的尾气后处理装置，其特征在于：所述端盖呈平板状。The exhaust gas aftertreatment device according to claim 2, wherein the end cap has a flat shape.
  9. 如权利要求1所述的尾气后处理装置，其特征在于：所述安装爪设有用以固定所述尿素喷嘴的螺纹孔。The exhaust aftertreatment device according to claim 1, wherein said mounting claw is provided with a threaded hole for fixing said urea nozzle.
  10. 如权利要求1所述的尾气后处理装置，其特征在于：所述后处理载体包括选择性催化还原剂。The exhaust aftertreatment device of claim 1 wherein said post-treatment support comprises a selective catalytic reduction agent.
PCT/CN2018/084385 2017-07-11 2018-04-25 Exhaust gas after-treatment device WO2019011034A1 (en)

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CN201710561341.XA CN109236424A (en) 2017-07-11 2017-07-11 Tail-gas after treatment apparatus

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009174486A (en) * 2008-01-28 2009-08-06 Denso Corp Mounting structure of injection valve
CN202500641U (en) * 2012-02-08 2012-10-24 潍柴动力股份有限公司 Fixing device for SCR system urea nozzle
CN205605279U (en) * 2016-04-12 2016-09-28 天纳克（苏州）排放系统有限公司 Hybrid module
CN205779152U (en) * 2016-07-04 2016-12-07 天纳克（苏州）排放系统有限公司 Tail-gas after treatment apparatus
CN206987921U (en) * 2017-07-11 2018-02-09 天纳克（苏州）排放系统有限公司 Tail-gas after treatment apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009174486A (en) * 2008-01-28 2009-08-06 Denso Corp Mounting structure of injection valve
CN202500641U (en) * 2012-02-08 2012-10-24 潍柴动力股份有限公司 Fixing device for SCR system urea nozzle
CN205605279U (en) * 2016-04-12 2016-09-28 天纳克（苏州）排放系统有限公司 Hybrid module
CN205779152U (en) * 2016-07-04 2016-12-07 天纳克（苏州）排放系统有限公司 Tail-gas after treatment apparatus
CN206987921U (en) * 2017-07-11 2018-02-09 天纳克（苏州）排放系统有限公司 Tail-gas after treatment apparatus

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