WO2017215460A1 - 尾气后处理混合装置 - Google Patents

尾气后处理混合装置 Download PDF

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Publication number
WO2017215460A1
WO2017215460A1 PCT/CN2017/086993 CN2017086993W WO2017215460A1 WO 2017215460 A1 WO2017215460 A1 WO 2017215460A1 CN 2017086993 W CN2017086993 W CN 2017086993W WO 2017215460 A1 WO2017215460 A1 WO 2017215460A1
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Prior art keywords
plate
outer tube
exhaust gas
tube
cavity
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PCT/CN2017/086993
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English (en)
French (fr)
Inventor
王聪
童毅君
陈智
毛伟
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天纳克（苏州）排放***有限公司
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Publication of WO2017215460A1 publication Critical patent/WO2017215460A1/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
    • 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
    • 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/02—Tubes being perforated
    • 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
    • F01N2610/08—Adding substances to exhaust gases with prior mixing of the substances with a gas, e.g. air
    • 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

Definitions

  • the invention relates to an exhaust gas post-treatment mixing device, and belongs to the technical field of engine exhaust gas post-treatment.
  • 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. If the ammonia distribution is uneven, it will lead to excessive ammonia in the local area and easy to cause ammonia leakage, while in other thin ammonia regions, the nitrogen oxide (NOx) conversion efficiency is too low. Uneven distribution of ammonia over a long period of time can result in uneven aging of the catalyst, thereby affecting the overall performance of the catalyst. In addition, the uneven distribution of urea droplets may cause the local tube wall or mixed structure temperature to be too low to form crystallization, which may block the tail gas pipe when severe, resulting in a decrease in engine power performance.
  • SCR system selective catalytic reduction system
  • an exhaust gas after-treatment mixing device comprising a casing, a mixing assembly located in the casing, and a partition plate cooperating with the mixing assembly, wherein the casing Providing a mount for mounting a urea nozzle to inject urea into the mixing assembly, the partition separating the housing into a first cavity in communication with the inlet and a second cavity in communication with the outlet,
  • the mixing assembly includes an inner tube, a dispensing body mated with the inner tube, an outer tube at a periphery of the inner tube, and an end cap cooperating with the outer tube, the inner tube being disposed in the first chamber a first tube body in the body and a second tube body extending into the second chamber body, the wall surface of the first tube body is provided with a plurality of swirling sheets, and the wall surface of the second tube body is provided with a gas flow through a plurality of first perforations;
  • the distribution body is provided with a plurality of through holes through which the
  • the partition plate comprises a first plate on one side of the mixing component, located at the a second plate on the other side of the mixing assembly and a third plate connecting the first plate and the second plate, the third plate being provided with a mounting hole through which the mixing assembly passes .
  • the partition plate has a substantially Z shape, and the first plate piece and the second plate piece both extend vertically and extend in opposite directions, and the third plate piece extends horizontally.
  • the third plate is provided with a slot at a periphery of the mounting hole, and the slot communicates with the first cavity and the second cavity.
  • the first tube body includes a plurality of openings in an upper portion of the swirling sheet, the opening holes being adjacent to the mounting seat and communicating with the first cavity.
  • the outer tube is in close contact with the second plate.
  • the second plate is provided with a slot, and the outer tube at least partially protrudes from the slot to be directly exposed in the first cavity.
  • the distribution body is fixed at the bottom of the first pipe body.
  • the distribution body has an arc shape.
  • the end cap is provided with a protrusion protruding into the second tube body for forcing a reverse flow of the airflow.
  • the dispensing body is located above the end cap and spaced apart from the end cap in a vertical direction.
  • the present invention improves the mixing uniformity of the exhaust gas and the urea droplet by providing the swirling sheet; by setting the distribution body, the urea droplet is broken smaller, and the atomization and mixing effect of the urea is improved; In addition, by providing the inner tube and the outer tube, and forcing the flow of the gas to flow backward through the end cap, the distance and time of evaporation of the urea are increased, and the uniformity of the airflow mixing is improved.
  • Figure 1 is a schematic perspective view of a tail gas aftertreatment mixing device of the present invention.
  • Fig. 2 is an exploded perspective view of Fig. 1;
  • Figure 3 is a left side view of Figure 1.
  • Figure 4 is a cross-sectional view taken along line A-A of Figure 3.
  • Figure 5 is a cross-sectional view taken along line B-B of Figure 3.
  • Figure 6 is a rear elevational view of Figure 1.
  • Figure 7 is a cross-sectional view taken along line C-C of Figure 6.
  • Figure 8 is an exploded perspective view of another embodiment of the exhaust aftertreatment mixing device of the present invention.
  • Figure 9 is a schematic cross-sectional view of the exhaust aftertreatment mixing device of Figure 8 taken along an angle.
  • the present invention discloses an exhaust aftertreatment mixing device 100 for use in an aftertreatment system such as an SCR to treat the exhaust of the engine.
  • the exhaust aftertreatment mixing device 100 includes a housing 1, a mixing assembly 2 mounted in the housing 1, and a partition 3 cooperating with the mixing assembly 2.
  • the casing 1 has a cylindrical shape, and is provided with a mounting plate 11 recessed into the casing 1 and a mounting seat 12 welded to the mounting plate 11.
  • the mount 12 is used to mount a urea nozzle (not shown) to inject urea into the mixing assembly 2.
  • the partition 3 divides the casing 1 into a first cavity 13 in communication with the inlet and a second cavity 14 in communication with the outlet.
  • the partition 3 is substantially Z-shaped, comprising a first plate 31 on one side of the mixing assembly 2 and a second plate on the other side of the mixing assembly 2 A sheet 32 and a third sheet 33 connecting the first sheet 31 and the second sheet 32.
  • the first plate 31 and the second plate 32 both extend vertically and extend in opposite directions.
  • the third plate 33 extends horizontally.
  • the third plate 33 is provided with a mounting hole 331 through which the mixing assembly 2 passes and a slot 332 at the periphery of the mounting hole 331.
  • the mixing assembly 2 includes an inner tube 21, a dispensing body 22 that mates with the inner tube 21, an outer tube 23 at the periphery of the inner tube 21, and an end cap 24 that mates with the outer tube 23.
  • the inner tube 21 is provided with a first tube body 211 located in the first cavity 13 and a second tube body 212 extending into the second cavity body 14.
  • the wall surface of the first pipe body 211 is provided with a plurality of swirling fins 2111 and a plurality of openings 2112 located at an upper portion of the swirling fins 2111.
  • the swirling sheet 2111 is located inside the first cavity 13.
  • the opening 2112 is adjacent to the mounting seat 12 and is in communication with the first cavity 13 .
  • the slot 332 communicates with the first cavity 13 and the second cavity 14, and the slot 332 can blow the airflow through the inner wall of the outer tube 23 to blow away crystals, thereby reducing the risk of crystallization.
  • the wall surface of the first pipe body 211 has a truncated cone shape.
  • the wall surface of the second pipe body 212 is provided with a plurality of first perforations 2121 through which the airflow passes.
  • the distribution body 22 is provided with a plurality of through holes 221 through which the airflow passes.
  • the outer tube 23 is located at the outer periphery of the second tube 212, and the wall of the outer tube 23 is provided with a plurality of second perforations 231 for airflow.
  • the end cap 24 is located at the bottom of the outer tube 23 to force the flow of gas to flow in the opposite direction.
  • the dispensing body 22 is secured to the bottom of the first tubular body 211.
  • the distribution body 22 has an arc shape.
  • the end cap 24 is provided with a projection 241 that projects into the second tubular body 212 and forces the airflow to flow in the opposite direction.
  • the dispensing body 22 is located above the end cap 24 and is spaced apart from the end cap 24 in a vertical direction.
  • the wall surface of the outer tube 23 is in close contact with the second plate 32.
  • the size required for the arrangement can be reduced; on the other hand, the second sheet 32 and the outer tube 23 can be heated by the exhaust gas, thereby further reducing the risk of forming urea crystals in the outer tube 23. .
  • the urea nozzle injects urea into the mixing assembly 2, and the atomized urea droplets are mixed with the exhaust gas of the engine and rotated downward.
  • the plurality of through holes 221 of the distribution body 22 can break the urea hit thereon into smaller droplets, thereby improving the atomization and mixing effect of the urea.
  • the flow of gas is forced to reverse (e.g., upward) by the action of the end cap 24.
  • the airflow after the reverse passes through the first perforation 2121 and/or the second perforation 231 and exits the outlet.
  • This arrangement increases the distance and time of urea evaporation, improves the uniformity of airflow mixing, and reduces the risk of urea crystallization.
  • the second plate 32 is provided with a slot 321 .
  • the outer tube 23 After the outer tube 23 is assembled with the second plate 32, the outer tube 23 at least partially protrudes from the slot 321 .
  • the wall portion of the outer tube 23 directly exposed to the first cavity 13 can be heated by the exhaust gas, thereby further reducing the risk of forming urea crystals in the outer tube 23.

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  • 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)
  • Exhaust Gas After Treatment (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)

Abstract

一种尾气后处理混合装置，其包括壳体、位于所述壳体内的混合组件以及隔板，其中所述隔板将所述壳体分隔成与进口连通的第一腔体以及与出口连通的第二腔体。混合组件包括内管、分配体、外管以及端盖，所述内管设有位于所述第一腔体内的第一管体以及延伸入所述第二腔体内的第二管体，所述第一管体的壁面设有若干旋流片，所述第二管体的壁面设有供气流穿过的若干第一穿孔；所述分配体设有供气流穿过的若干通孔；所述外管位于所述第二管体的***，所述外管的壁面设有供气流穿过若干第二穿孔；所述端盖位于所述外管的底部，用以迫使气流反向流动。如此设置，增加了尿素蒸发的距离和时间，提高了气流混合的均匀性。

Description

尾气后处理混合装置
本申请要求了申请日为2016年6月13日、申请号为201610422729.7、发明名称为“尾气后处理混合装置”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
本发明涉及一种尾气后处理混合装置，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***(例如选择性催化还原***，SCR***)管路中氨分布的均匀程度对***的整体性能和耐久性能有重要的影响。如果氨分布不均匀会导致局部区域氨过多从而易造成氨泄漏，而在另一些氨稀薄区域造成氮氧化合物(NOx)转化效率过低。长时间氨的不均匀分布会导致催化剂老化不均匀，从而影响催化剂的整体性能。另外，尿素液滴的不均匀分布会造成局部管壁或混合结构温度过低，形成结晶，严重时会堵塞尾气管、导致发动机动力性能下降。
因此，有必要提供一种新型的尾气后处理混合装置，以解决上述技术问题。
发明内容
本发明的目的在于提供一种混合均匀的尾气后处理混合装置。
为实现上述目的，本发明采用如下技术方案：一种尾气后处理混合装置，其包括壳体、位于所述壳体内的混合组件以及与所述混合组件相配合的隔板，其中所述壳体设有用以安装尿素喷嘴以向所述混合组件中喷射尿素的安装座，所述隔板将所述壳体分隔成与进口连通的第一腔体以及与出口连通的第二腔体，所述混合组件包括内管、与所述内管相配合的分配体、位于所述内管***的外管以及与所述外管相配合的端盖，所述内管设有位于所述第一腔体内的第一管体以及延伸入所述第二腔体内的第二管体，所述第一管体的壁面设有若干旋流片，所述第二管体的壁面设有供气流穿过的若干第一穿孔；所述分配体设有供气流穿过的若干通孔；所述外管位于所述第二管体的***，所述外管的壁面设有供气流穿过若干第二穿孔；所述端盖位于所述外管的底部，用以迫使气流反向流动。
作为本发明进一步改进的技术方案，所述隔板包括位于所述混合组件一侧的第一板片、位于所 述混合组件另一侧的第二板片以及连接所述第一板片与所述第二板片的第三板片，所述第三板片设有供所述混合组件穿过的安装孔。
作为本发明进一步改进的技术方案，所述隔板大致呈Z形，所述第一板片与所述第二板片均竖直延伸且延伸方向相反，所述第三板片水平延伸。
作为本发明进一步改进的技术方案，所述第三板片设有位于所述安装孔***的开槽，所述开槽连通所述第一腔体与所述第二腔体。
作为本发明进一步改进的技术方案，所述第一管体包括位于所述旋流片的上部的若干开孔，所述开孔靠近所述安装座且与所述第一腔体相连通。
作为本发明进一步改进的技术方案，所述外管贴紧所述第二板片。
作为本发明进一步改进的技术方案，所述第二板片设有开槽，所述外管至少部分凸出所述开槽以直接暴露在所述第一腔体内。
作为本发明进一步改进的技术方案，所述分配体固定在所述第一管体的底部。
作为本发明进一步改进的技术方案，所述分配体呈圆弧状。
作为本发明进一步改进的技术方案，所述端盖设有凸伸入所述第二管体内且用以迫使气流反向流动的凸起。
作为本发明进一步改进的技术方案，所述分配***于所述端盖的上方且在竖直方向上与所述端盖间隔开。
相较于现有技术，本发明通过设置旋流片提高了尾气与尿素液滴的混合均匀性；通过设置分配体，使尿素液滴破碎得更小，提高了尿素的雾化及混合效果；另外，通过设置内管以及外管，并通过端盖迫使气流反向流动，增加了尿素蒸发的距离和时间，提高了气流混合的均匀性。
附图说明
图1是本发明尾气后处理混合装置的立体示意图。
图2是图1的立体分解图。
图3是图1的左视图。
图4是图3中A-A线的剖面示意图。
图5是图3中B-B线的剖面示意图。
图6是图1的后视图。
图7是沿图6中C-C线的剖面示意图。
图8是本发明尾气后处理混合装置在另一实施方式中的立体分解图。
图9是图8中的尾气后处理混合装置沿某一角度的剖面示意图。
具体实施方式
请参图1至图7所示，本发明揭示了一种尾气后处理混合装置100，用于例如SCR等后处理***中以处理发动机的尾气。所述尾气后处理混合装置100包括壳体1、安装于所述壳体1内的混合组件2以及与所述混合组件2相配合的隔板3。
在本发明图示的实施方式中，所述壳体1呈圆筒状，其设有向所述壳体1内凹陷的安装板11以及焊接在所述安装板11上的安装座12。所述安装座12用以安装尿素喷嘴(未图示)以向所述混合组件2中喷射尿素。
所述隔板3将所述壳体1分隔成与进口连通的第一腔体13以及与出口连通的第二腔体14。在本发明图示的实施方式中，所述隔板3大致呈Z形，其包括位于所述混合组件2一侧的第一板片31、位于所述混合组件2另一侧的第二板片32以及连接所述第一板片31与所述第二板片32的第三板片33。所述第一板片31与所述第二板片32均竖直延伸且延伸方向相反。所述第三板片33水平延伸。所述第三板片33设有供所述混合组件2穿过的安装孔331以及位于所述安装孔331***的开槽332。
所述混合组件2包括内管21、与所述内管21相配合的分配体22、位于所述内管21***的外管23以及与所述外管23相配合的端盖24。其中所述内管21设有位于所述第一腔体13内的第一管体211以及延伸入所述第二腔体14内的第二管体212。所述第一管体211的壁面设有若干旋流片2111以及位于所述旋流片2111的上部的若干开孔2112。所述旋流片2111位于所述第一腔体13内。所述开孔2112靠近所述安装座12且与所述第一腔体13相连通。所述开槽332连通所述第一腔体13与所述第二腔体14，并且所述开槽332能够供穿过的气流吹向外管23的内壁，吹走结晶，从而降低结晶风险。在本发明图示的实施方式中，所述第一管体211的壁面呈圆台状。所述第二管体212的壁面设有供气流穿过的若干第一穿孔2121。所述分配体22设有供气流穿过的若干通孔221。所述外管23位于所述第二管体212的***，所述外管23的壁面设有供气流穿过若干第二穿孔231。所述端盖24位于所述外管23的底部，用以迫使气流反向流动。
在本发明图示的实施方式中，所述分配体22固定在所述第一管体211的底部。所述分配体22呈圆弧状。所述端盖24设有凸伸入所述第二管体212内且用以迫使气流反向流动的凸起241。所述分配体22位于所述端盖24的上方且在竖直方向上与所述端盖24间隔开。
请参图5所示，组装后，所述外管23的壁面贴紧所述第二板片32。如此设置，一方面，可以减小布置所需的尺寸；另一方面，可以通过排气对所述第二板片32以及外管23进行加热，从而进一步降低在外管23中形成尿素结晶的风险。
当发动机的尾气自进口进入第一腔体13时，绝大部分的尾气在旋流片2111的导引下旋转进入内管21，少量的尾气自开孔2112进入内管21。当满足喷射条件时，尿素喷嘴向混合组件2中喷射尿素，雾化的尿素液滴与发动机的尾气一起混合并向下旋转。分配体22的若干通孔221可以使打到其上的尿素被破碎成更小的液滴，从而提高了尿素的雾化及混合效果。随后，在端盖24的作用下迫使气流反向(例如向上)流动。反向之后的气流穿过第一穿孔2121及/或第二穿孔231，并从出口离开。如此设置，增加了尿素蒸发的距离和时间，提高了气流混合的均匀性，降低了尿素结晶的风险。
请参图8及图9所示，在本发明尾气后处理混合装置100的另一实施方式中，所述第二板片32设有开槽321。当外管23与所述第二板片32装配好之后，所述外管23至少部分凸出所述开槽321。如此设置，外管23直接暴露在所述第一腔体13内的壁部可以通过排气进行加热，从而进一步降低在外管23内形成尿素结晶的风险。
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 (10)

  1. 一种尾气后处理混合装置，其包括壳体、位于所述壳体内的混合组件以及与所述混合组件相配合的隔板，其中所述壳体设有用以安装尿素喷嘴以向所述混合组件中喷射尿素的安装座，所述隔板将所述壳体分隔成与进口连通的第一腔体以及与出口连通的第二腔体，其特征在于：所述混合组件包括内管、与所述内管相配合的分配体、位于所述内管***的外管以及与所述外管相配合的端盖，所述内管设有位于所述第一腔体内的第一管体以及延伸入所述第二腔体内的第二管体，所述第一管体的壁面设有若干旋流片，所述第二管体的壁面设有供气流穿过的若干第一穿孔；所述分配体设有供气流穿过的若干通孔；所述外管位于所述第二管体的***，所述外管的壁面设有供气流穿过若干第二穿孔；所述端盖位于所述外管的底部，用以迫使气流反向流动。
  2. 如权利要求1所述的尾气后处理混合装置，其特征在于：所述隔板包括位于所述混合组件一侧的第一板片、位于所述混合组件另一侧的第二板片以及连接所述第一板片与所述第二板片的第三板片，所述第三板片设有供所述混合组件穿过的安装孔。
  3. 如权利要求2所述的尾气后处理混合装置，其特征在于：所述隔板大致呈Z形，所述第一板片与所述第二板片均竖直延伸且延伸方向相反，所述第三板片水平延伸。
  4. 如权利要求2所述的尾气后处理混合装置，其特征在于：所述第三板片设有位于所述安装孔***的开槽，所述开槽连通所述第一腔体与所述第二腔体。
  5. 如权利要求1所述的尾气后处理混合装置，其特征在于：所述第一管体包括位于所述旋流片的上部的若干开孔，所述开孔靠近所述安装座且与所述第一腔体相连通。
  6. 如权利要求2所述的尾气后处理混合装置，其特征在于：所述外管贴紧所述第二板片。
  7. 如权利要求6所述的尾气后处理混合装置，其特征在于：所述第二板片设有开槽，所述外管至少部分凸出所述开槽以直接暴露在所述第一腔体内。
  8. 如权利要求1所述的尾气后处理混合装置，其特征在于：所述分配体固定在所述第一管体的底部。
  9. 如权利要求1所述的尾气后处理混合装置，其特征在于：所述分配体呈圆弧状。
  10. 如权利要求1所述的尾气后处理混合装置，其特征在于：所述分配***于所述端盖的上方且在竖直方向上与所述端盖间隔开。
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3566765A1 (en) * 2018-05-07 2019-11-13 Dinex A/S Compact exhaust mixing system
CN110848007A (zh) * 2019-12-19 2020-02-28 无锡亿利环保科技有限公司 尿素混合装置
CN115382412A (zh) * 2022-08-02 2022-11-25 浙江邦得利环保科技股份有限公司 一种高效混合器

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106437968B (zh) * 2016-10-24 2019-06-28 无锡威孚力达催化净化器有限责任公司 一体波浪式旋流尿素混合装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008208726A (ja) * 2007-02-23 2008-09-11 Hino Motors Ltd 排気浄化装置
DE102009036511A1 (de) * 2009-08-07 2011-02-10 Friedrich Boysen Gmbh & Co. Kg Abgasanlage
CN103321724A (zh) * 2013-07-09 2013-09-25 潍柴动力股份有限公司 Scr催化***及其混合管装置
US20150071828A1 (en) * 2013-05-07 2015-03-12 Tenneco Automotive Operating Company Inc. Exhaust mixing assembly
CN204646380U (zh) * 2015-05-13 2015-09-16 天纳克（苏州）排放***有限公司 双层混合管及其排气处理装置
CN204827615U (zh) * 2015-07-27 2015-12-02 天纳克（苏州）排放***有限公司 双层混合管及其排气后处理装置
CN205714373U (zh) * 2016-06-13 2016-11-23 天纳克（苏州）排放***有限公司 尾气后处理混合装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008049306A (ja) * 2006-08-28 2008-03-06 Hitachi Ltd ガス混合装置
US8033104B2 (en) * 2008-07-09 2011-10-11 Ford Global Technologies, Llc Selective catalytic reduction (SCR) catalyst injection systems
CN202028346U (zh) * 2010-12-15 2011-11-09 杭州银轮科技有限公司 一种用于柴油机尿素选择性催化还原装置的静态混合器
KR101416478B1 (ko) * 2012-08-17 2014-07-09 세종공업 주식회사 디젤 엔진의 배기가스 후처리 시스템용 믹싱 모듈
SE536833C2 (sv) * 2012-12-21 2014-09-23 Scania Cv Ab Arrangemang för att införa ett vätskeformigt medium i avgaser från en förbränningsmotor
CN105275554A (zh) * 2015-10-21 2016-01-27 西安交通大学 带排气混合器的scr后处理装置
CN205243598U (zh) * 2015-12-18 2016-05-18 天纳克（苏州）排放***有限公司 发动机排气后处理装置
CN105464765A (zh) * 2015-12-30 2016-04-06 广西玉柴机器股份有限公司 应用于尾气后处理中的混合器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008208726A (ja) * 2007-02-23 2008-09-11 Hino Motors Ltd 排気浄化装置
DE102009036511A1 (de) * 2009-08-07 2011-02-10 Friedrich Boysen Gmbh & Co. Kg Abgasanlage
US20150071828A1 (en) * 2013-05-07 2015-03-12 Tenneco Automotive Operating Company Inc. Exhaust mixing assembly
CN103321724A (zh) * 2013-07-09 2013-09-25 潍柴动力股份有限公司 Scr催化***及其混合管装置
CN204646380U (zh) * 2015-05-13 2015-09-16 天纳克（苏州）排放***有限公司 双层混合管及其排气处理装置
CN204827615U (zh) * 2015-07-27 2015-12-02 天纳克（苏州）排放***有限公司 双层混合管及其排气后处理装置
CN205714373U (zh) * 2016-06-13 2016-11-23 天纳克（苏州）排放***有限公司 尾气后处理混合装置

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3566765A1 (en) * 2018-05-07 2019-11-13 Dinex A/S Compact exhaust mixing system
WO2019215081A1 (en) * 2018-05-07 2019-11-14 Dinex A/S Compact exhaust mixing system
CN111727083A (zh) * 2018-05-07 2020-09-29 迪耐斯集团 紧凑废气混合***
CN111727083B (zh) * 2018-05-07 2022-12-27 迪耐斯集团 紧凑废气混合***
CN110848007A (zh) * 2019-12-19 2020-02-28 无锡亿利环保科技有限公司 尿素混合装置
CN115382412A (zh) * 2022-08-02 2022-11-25 浙江邦得利环保科技股份有限公司 一种高效混合器
CN115382412B (zh) * 2022-08-02 2024-04-09 浙江邦得利环保科技股份有限公司 一种高效混合器

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