CN207960744U - A kind of clam shell air intake structure with flow-disturbing partition board - Google Patents
A kind of clam shell air intake structure with flow-disturbing partition board Download PDFInfo
- Publication number
- CN207960744U CN207960744U CN201820251524.1U CN201820251524U CN207960744U CN 207960744 U CN207960744 U CN 207960744U CN 201820251524 U CN201820251524 U CN 201820251524U CN 207960744 U CN207960744 U CN 207960744U
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- CN
- China
- Prior art keywords
- air intake
- spoiler
- clamshell
- catalytic converter
- end cover
- 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.)
- Expired - Fee Related
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- 238000005192 partition Methods 0.000 title claims abstract description 17
- 230000003197 catalytic effect Effects 0.000 claims abstract description 22
- 230000003647 oxidation Effects 0.000 claims abstract description 19
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 19
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012805 post-processing Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
Classifications
-
- 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
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
本实用新型属于汽车尾气后处理装置技术领域，具体为一种带扰流隔板的蚌壳进气结构，包括进气引导管和蚌壳端盖，所述进气引导管包括扭曲引导段和直管引导段；使用时，扭曲引导段的入口端与前端增压器相连接，蚌壳端盖的出口端与氧化催化转化器的外筒体相连接；所述蚌壳端盖设有扰流隔板，扰流隔板所在的平面经过氧化催化转化器的中轴线。本实用新型结构紧凑，对布置安装空间需求小，适用于底盘布置空间紧张且进气管路方向与氧化催化转化器呈垂直布置的情况，有效解决进入氧化催化转化器流场均匀性不达标的问题，从而提高了催化转化器的转化效率和使用寿命。
The utility model belongs to the technical field of automobile exhaust post-processing devices, in particular to a clam shell air intake structure with a spoiler partition, comprising an air intake guide pipe and a clam shell end cover, the air intake guide pipe includes a twisted guide section and a clam shell end cover. Straight pipe guide section; when in use, the inlet end of the twisted guide section is connected to the front-end supercharger, and the outlet end of the clamshell end cover is connected to the outer cylinder of the oxidation catalytic converter; the clamshell end cover is provided with a disturbance Flow baffle, the plane where the spoiler baffle is located passes through the central axis of the oxidation catalytic converter. The utility model has a compact structure and requires little space for arrangement and installation. It is suitable for the case where the chassis arrangement space is tight and the direction of the intake pipeline is perpendicular to the oxidation catalytic converter, and effectively solves the problem that the uniformity of the flow field entering the oxidation catalytic converter is not up to standard. , thereby improving the conversion efficiency and service life of the catalytic converter.
Description
技术领域technical field
本实用新型涉及一种蚌壳进气结构，主要布置于商用车氧化催化转化器的前端，属于汽车尾气后处理装置技术领域，具体为一种带扰流隔板的蚌壳进气结构。The utility model relates to a clam shell air intake structure, which is mainly arranged at the front end of an oxidation catalytic converter of a commercial vehicle, belongs to the technical field of automobile exhaust after-treatment devices, and is specifically a clam shell air intake structure with a spoiler partition.
背景技术Background technique
随着未来排放法规的日益严苛，为保证各污染物达到相应阶段排放法规，后处理装置的使用必不可少。With the increasingly stringent emission regulations in the future, in order to ensure that each pollutant meets the emission regulations of the corresponding stage, the use of after-treatment devices is essential.
使用氧化催化转化器（DOC）的商用车后处理产品中，进气管路与氧化催化转化器DOC呈垂直布置时，受限于布置空间，传统的进气结构较难满足设计要求。In commercial vehicle aftertreatment products using oxidation catalytic converters (DOC), when the air intake pipeline and the oxidation catalytic converter DOC are vertically arranged, the layout space is limited, and the traditional air intake structure is difficult to meet the design requirements.
发明内容Contents of the invention
本实用新型的目的是设计了一种带扰流隔板的蚌壳进气结构，该结构在进气管路与氧化催化转化器成垂直布置且底盘布置空间紧张的情况，能使气流进入氧化催化转化器的流场满足均匀性指标要求，能提高氧化催化转化器的转化效率和使用寿命。The purpose of this utility model is to design a clam shell air intake structure with a spoiler partition, which can make the air flow enter the oxidation catalytic converter when the air intake pipeline and the oxidation catalytic converter are vertically arranged and the space of the chassis is tight. The flow field of the converter meets the requirement of uniformity index, and can improve the conversion efficiency and service life of the oxidation catalytic converter.
根据本实用新型的技术方案，所述带扰流隔板的蚌壳进气结构，包括进气引导管和蚌壳端盖，所述进气引导管包括扭曲引导段和直管引导段；所述蚌壳端盖设有扰流隔板。According to the technical solution of the present utility model, the clamshell air intake structure with spoiler partitions includes an air intake guide pipe and a clamshell end cover, and the air intake guide pipe includes a twisted guide section and a straight pipe guide section; The clamshell end cover is provided with a spoiler partition.
进一步的，所述扰流隔板两侧带翻边，并利用翻边焊接在蚌壳端盖内。Further, the two sides of the turbulent partition have flanging, and are welded into the clamshell end cap by means of the flanging.
进一步的，所述蚌壳端盖为扁平状。Further, the clamshell end cap is flat.
进一步的，所述扰流隔板上的开孔直径为8-12mm。Further, the diameter of the hole on the baffle is 8-12mm.
使用时，扭曲引导段的入口端与前端增压器相连接，蚌壳端盖的出口端与氧化催化转化器的外筒体相连接。所述扰流隔板所在的平面经过氧化催化转化器的中轴线。When in use, the inlet end of the twisted guide section is connected with the front-end supercharger, and the outlet end of the clam shell end cover is connected with the outer cylindrical body of the oxidation catalytic converter. The plane where the spoiler is located passes through the central axis of the oxidation catalytic converter.
本实用新型的有益效果在于：结构紧凑，对布置安装空间需求小，适用于底盘布置空间紧张且进气管路方向与氧化催化转化器呈垂直布置的情况，有效解决进入氧化催化转化器流场均匀性不达标的问题，从而提高了催化转化器的转化效率和使用寿命。The beneficial effect of the utility model is that the structure is compact, and the requirement for arrangement and installation space is small, which is suitable for the case where the layout space of the chassis is tight and the direction of the intake pipeline is vertically arranged with the oxidation catalytic converter, effectively solving the problem of uniformity of the flow field entering the oxidation catalytic converter Therefore, the conversion efficiency and service life of the catalytic converter are improved.
附图说明Description of drawings
图1、图2为本实用新型的结构示意图。Fig. 1, Fig. 2 are the structural representations of the utility model.
图3、图4为本实用新型的扰流隔板的结构示意图。Fig. 3 and Fig. 4 are structural schematic diagrams of the spoiler partition of the present invention.
附图标记：扭曲引导段1、直管引导段2、蚌壳端盖3、扰流隔板4。Reference signs: twisted guide section 1, straight pipe guide section 2, clamshell end cover 3, spoiler partition 4.
具体实施方式Detailed ways
下面结合具体实施例和附图对本实用新型作进一步说明。Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described.
如图所示的带扰流隔板的蚌壳进气结构，包括进气引导管和蚌壳端盖3，其中，进气引导管包括扭曲引导段1和直管引导段2。使用时，扭曲引导段1的入口端通过波纹管与前端增压器相连接，蚌壳端盖3的出口端与氧化催化转化器的外筒体相连接。在蚌壳端盖3内设有扰流隔板4，扰流隔板4所在的平面经过氧化催化转化器的中轴线。具体的，扰流隔板4两侧带翻边，并利用翻边焊接在蚌壳端盖3内。扰流隔板4上的开孔直径为8-12mm，在一个实施例中为10mm。蚌壳端盖3为扁平状。The clamshell air intake structure with turbulent partitions as shown in the figure includes an air intake guide pipe and a clamshell end cover 3 , wherein the air intake guide pipe includes a twisted guide section 1 and a straight pipe guide section 2 . When in use, the inlet end of the twisted guide section 1 is connected to the front-end supercharger through the bellows, and the outlet end of the clam shell end cover 3 is connected to the outer cylinder of the oxidation catalytic converter. A spoiler baffle 4 is arranged inside the clamshell end cover 3 , and the plane where the spoiler baffle 4 is located passes through the central axis of the oxidation catalytic converter. Specifically, both sides of the turbulence partition 4 have flanges, and are welded into the clam shell end cover 3 by means of the flanges. The diameter of the opening on the baffle 4 is 8-12mm, in one embodiment it is 10mm. The clamshell end cover 3 is flat.
工作原理：发动机工作产生的废气经过前端排气歧管及增压器进入扭曲引导段1及直管引导段2中，如图1所示，整个进气结构外形是一个类切向进气方案，气流在进入蚌壳后会有一个旋转的效应，因扁平蚌壳前端内侧焊有带翻边的扰流隔板4，该扰流隔板会对有旋转趋势的来流产生阻挡和扩散的作用，使得气流在扁平蚌壳端盖内混合充分，该扰流隔板上打满圆孔，故该结构不会产生较大的截流效应，背压的增加在可接受的范围内，混合充分的废气进入后方的氧化催化转化器中，提高了催化转化器的转化效率和使用寿命。Working principle: The exhaust gas generated by the engine operation enters the twisted guide section 1 and the straight pipe guide section 2 through the front exhaust manifold and the supercharger. As shown in Figure 1, the entire intake structure is a tangential intake scheme. , the airflow will have a rotation effect after entering the clamshell, because the inner side of the front end of the flat clamshell is welded with a turbulence partition 4 with flanging, this spoiler will block and diffuse the incoming flow with a tendency to rotate The function makes the air flow fully mixed in the flat clamshell end cover, and the turbulence partition is filled with round holes, so this structure will not produce a large interception effect, the increase of back pressure is within an acceptable range, and the mixing is sufficient The exhaust gas enters the rear oxidation catalytic converter, which improves the conversion efficiency and service life of the catalytic converter.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251524.1U CN207960744U (en) | 2018-02-12 | 2018-02-12 | A kind of clam shell air intake structure with flow-disturbing partition board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820251524.1U CN207960744U (en) | 2018-02-12 | 2018-02-12 | A kind of clam shell air intake structure with flow-disturbing partition board |
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| Publication Number | Publication Date |
|---|---|
| CN207960744U true CN207960744U (en) | 2018-10-12 |
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| CN201820251524.1U Expired - Fee Related CN207960744U (en) | 2018-02-12 | 2018-02-12 | A kind of clam shell air intake structure with flow-disturbing partition board |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882273A (en) * | 2019-03-12 | 2019-06-14 | 无锡威孚力达催化净化器有限责任公司 | Light-duty diesel vehicle compact post-processes cartridge type encapsulating structure |
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2018
- 2018-02-12 CN CN201820251524.1U patent/CN207960744U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882273A (en) * | 2019-03-12 | 2019-06-14 | 无锡威孚力达催化净化器有限责任公司 | Light-duty diesel vehicle compact post-processes cartridge type encapsulating structure |
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Granted publication date: 20181012 |
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