CN214145628U - Pipeline assembly of auxiliary circulating system for aftertreatment reducing agent and commercial vehicle - Google Patents
Pipeline assembly of auxiliary circulating system for aftertreatment reducing agent and commercial vehicle Download PDFInfo
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- CN214145628U CN214145628U CN202022529136.5U CN202022529136U CN214145628U CN 214145628 U CN214145628 U CN 214145628U CN 202022529136 U CN202022529136 U CN 202022529136U CN 214145628 U CN214145628 U CN 214145628U
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- pipe
- aftertreatment
- engine
- tube
- circulation system
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- 239000003638 chemical reducing agent Substances 0.000 title claims abstract description 31
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000004202 carbamide Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 239000002826 coolant Substances 0.000 abstract description 8
- 230000010354 integration Effects 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000000110 cooling liquid Substances 0.000 description 4
- 239000003365 glass fiber Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920002943 EPDM rubber Polymers 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- 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
The utility model relates to a commercial car field discloses a post-treatment reductant auxiliary circulation system pipeline assembly and commercial car, adopts integrated form structure with first pipe, second pipe, third pipe, fourth pipe, fifth pipe and sixth pipe respectively with parallelly connected three-way pipe intercommunication, the degree of integration is high, in operation, on the one hand, the high temperature coolant liquid of engine can get into third pipe, parallelly connected three-way pipe and first pipe in proper order via the delivery port of engine, heat the urea case, then flow back to the engine in through second pipe, parallelly connected three-way pipe and fourth pipe; on the other hand, high-temperature coolant of the engine can enter the third pipe, the parallel three-way pipe and the fifth pipe in sequence through the water outlet of the engine to heat the urea nozzle, and then flows back into the engine through the sixth pipe, the parallel three-way pipe and the fourth pipe.
Description
Technical Field
The utility model relates to a commercial car field especially relates to a post-treatment reductant auxiliary circulation system pipeline assembly and commercial car.
Background
The Selective Catalytic Reduction (SCR) technology is a treatment process for NOx discharged from tail gas of diesel vehicle, i.e. under the action of catalyst, the reducing agent ammonia or urea is sprayed in to reduce NOx in tail gas into N2And H2And O. The urea solution can crystallize at minus 11 ℃ under normal pressure, and in order to ensure that the urea solution in the urea tank can be quickly thawed and kept in a liquid state in cold winter and ensure that a urea nozzle is not blocked due to low-temperature crystallization of the urea solution, high-temperature cooling liquid of an engine is usually introduced to heat the urea tank and the urea nozzle.
The pipeline of the existing commercial vehicle aftertreatment reducing agent auxiliary circulation system generally adopts a split type pipeline, the pipeline is made of EPDM rubber, the wall thickness of the pipeline is 3.5mm-5mm, metal tee joints are adopted for cooling liquid diversion, the rubber pipeline and the tee joints, a urea box, a urea nozzle and an engine end joint are connected through worm transmission type hose clamps and the like, assembly is carried out in a total assembly workshop of a whole vehicle plant, the pipeline of the existing commercial vehicle aftertreatment reducing agent auxiliary circulation system is low in integration degree, large in overall quality and low in assembly efficiency of the whole vehicle plant.
SUMMERY OF THE UTILITY MODEL
Based on above problem, the utility model aims to provide a aftertreatment reductant auxiliary circulation system pipeline assembly and commercial car integrates the degree height, easily assembly.
In order to achieve the purpose, the utility model adopts the following technical proposal:
a pipeline assembly of an auxiliary circulating system of a post-treatment reducing agent comprises a parallel three-way pipe, a first pipe and a second pipe are integrated on the first side surface of the parallel three-way pipe, the first pipe is configured to be connected with a water inlet of a urea tank, the second pipe is configured to be connected with a water outlet of the urea tank, a third pipe and a fourth pipe are integrated on the second side surface of the parallel three-way pipe, the third pipe is configured to be connected with a water outlet of an engine, the fourth pipe is configured to be connected with a water return port of the engine, a fifth pipe and a sixth pipe are integrated on the third side surface of the parallel three-way pipe, the fifth pipe is configured to be connected with a water inlet of a urea nozzle, the sixth pipe is configured to be connected with a water outlet of the urea nozzle, the connection ports of the first pipe, the second pipe, the third pipe, the fourth pipe, the fifth pipe and the sixth pipe are respectively provided with a quick-connection plug.
As the utility model discloses a preferred scheme of aftertreatment reductant auxiliary circulation system pipeline assembly, first pipe the second pipe the third pipe the fourth pipe the fifth pipe with the sixth pipe is formed by polydodecalactam material preparation.
As the utility model discloses a preferred scheme of aftertreatment reductant auxiliary circulation system pipeline assembly, parallelly connected three-way pipe adopts to add to have the plastic raw materials preparation that has 30% glass fiber to form.
As the utility model discloses a preferred scheme of aftertreatment reductant auxiliary circulation system pipeline assembly, quick connector adopt the pressure equipment machine crimping in first pipe the second pipe the third pipe the fourth pipe the fifth pipe or the connection port of sixth pipe.
As the utility model discloses a preferred scheme of aftertreatment reductant auxiliary circulation system pipeline assembly, quick connector adopt laser welding in first pipe the second pipe the third pipe the fourth pipe the fifth pipe or the connection port of sixth pipe.
As the utility model discloses a preferred scheme of aftertreatment reductant auxiliary circulation system pipeline assembly, the quick connector adopt ultrasonic welding in first pipe the second pipe the third pipe the fourth pipe the fifth pipe or the connection port of sixth pipe.
As the utility model discloses a preferred scheme of aftertreatment reductant auxiliary circulation system pipeline assembly, first side with the second side is respectively parallelly connected two sides that the three-way pipe is relative.
As a preferred embodiment of the pipeline assembly of the post-treatment reducing agent auxiliary circulation system of the present invention, the third side surface is perpendicular to the first side surface and the second side surface, respectively.
As a preferable embodiment of the pipeline assembly of the post-treatment reducing agent auxiliary circulation system of the present invention, the axes of the first pipe, the second pipe, the third pipe, the fourth pipe, the fifth pipe, and the sixth pipe are parallel to each other.
A commercial vehicle comprises the aftertreatment reductant auxiliary circulation system pipeline assembly.
The utility model has the advantages that:
the utility model provides a post-treatment reductant auxiliary circulation system pipeline assembly and commercial car adopts integrated form structure with first pipe, second pipe, third pipe, fourth pipe, fifth pipe and sixth pipe respectively with parallelly connected three-way pipe intercommunication, integrate the degree height, during operation, on the one hand, the high temperature coolant liquid of engine can get into third pipe, parallelly connected three-way pipe and first pipe in proper order via the delivery port of engine, heats the urea case, then flows back to in the engine through second pipe, parallelly connected three-way pipe and fourth pipe; on the other hand, high-temperature coolant of the engine can enter the third pipe, the parallel three-way pipe and the fifth pipe in sequence through the water outlet of the engine to heat the urea nozzle, and then flows back into the engine through the sixth pipe, the parallel three-way pipe and the fourth pipe.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a pipeline assembly of an auxiliary circulation system for post-treatment reducing agent according to an embodiment of the present invention.
In the figure:
1-parallel three-way pipe; 2-a first tube; 3-a second tube; 4-a third tube; 5-a fourth tube; 6-a fifth tube; 7-a sixth tube; 8-quick connector.
Detailed Description
In order to make the technical problems, technical solutions and technical effects achieved by the present invention more clear, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings, and obviously, the described embodiments are only some embodiments, not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the present embodiment provides an aftertreatment reductant auxiliary circulation system pipeline assembly, which includes a parallel three-way pipe 1, a first pipe 2 and a second pipe 3 integrated on a first side surface of the parallel three-way pipe 1, the first pipe 2 configured to be connected to a water inlet of a urea tank, the second pipe 3 configured to be connected to a water outlet of the urea tank, a third pipe 4 and a fourth pipe 5 integrated on a second side surface of the parallel three-way pipe 1, the third pipe 4 configured to be connected to a water outlet of an engine, the fourth pipe 5 configured to be connected to a water return port of the engine, a fifth pipe 6 and a sixth pipe 7 integrated on a third side surface of the parallel three-way pipe 1, the fifth pipe 6 configured to be connected to a water inlet of a urea nozzle, the sixth pipe 7 configured to be connected to a water outlet of the urea nozzle, the first pipe 2, the second pipe 3, The connection ports of the third pipe 4, the fourth pipe 5, the fifth pipe 6 and the sixth pipe 7 are respectively provided with a quick connector 8.
The integrated structure is adopted to communicate the first pipe 2, the second pipe 3, the third pipe 4, the fourth pipe 5, the fifth pipe 6 and the sixth pipe 7 with the parallel three-way pipe 1 respectively, the integration degree is high, and during operation, on one hand, high-temperature coolant of the engine can enter the third pipe 4, the parallel three-way pipe 1 and the first pipe 2 in sequence through a water outlet of the engine to heat the urea box, and then flows back into the engine through the second pipe 3, the parallel three-way pipe 1 and the fourth pipe 5; on the other hand, high-temperature coolant of the engine can enter the third pipe 4, the parallel three-way pipe 1 and the fifth pipe 6 in sequence through the water outlet of the engine to heat the urea nozzle, and then flows back to the engine through the sixth pipe 7, the parallel three-way pipe 1 and the fourth pipe 5, and as the connection ports of the first pipe 2, the second pipe 3, the third pipe 4, the fourth pipe 5, the fifth pipe 6 and the sixth pipe 7 are respectively provided with the quick-plugging connectors 8, the assembly efficiency is high, and the maintenance convenience is good
In order to reduce the weight of the first tube 2, the second tube 3, the third tube 4, the fourth tube 5, the fifth tube 6 and the sixth tube 7, optionally, the first tube 2, the second tube 3, the third tube 4, the fourth tube 5, the fifth tube 6 and the sixth tube 7 are all made of polydodecalactam material. The weight of the same length of polydodecalactam (PA12) is only one third of that of rubber. In order to reduce the weight of the parallel three-way pipe 1, optionally, the parallel three-way pipe 1 is made of plastic raw materials added with 30% of glass fiber. The parallel three-way pipe 1 is made of plastic (PA66+ GF30) added with 30% of glass fiber, and the weight of the parallel three-way pipe is only one fourth of that of metal.
To improve the assembly efficiency, optionally, the quick-connect coupling 8 is press-fitted to the connection port of the first tube 2, the second tube 3, the third tube 4, the fourth tube 5, the fifth tube 6, or the sixth tube 7 using a press-fitting machine. To improve the precision of the assembly, the quick-connect connector 8 is optionally laser welded to the connection port of the first tube 2, the second tube 3, the third tube 4, the fourth tube 5, the fifth tube 6 or the sixth tube 7. To improve the sealing performance of the assembly, the quick-connect coupling 8 is optionally ultrasonically welded to the connection port of the first, second, third, fourth, fifth or sixth pipes 2, 3, 4, 5, 6 or 7.
In order to facilitate the circulation of the high-temperature cooling liquid, optionally, the first side surface and the second side surface are two opposite side surfaces of the parallel three-way pipe 1 respectively. Optionally, the third side is perpendicular to the first side and the second side, respectively, to accommodate the installation space in the vehicle.
To increase the flow rate of the high-temperature coolant, the axes of the first tube 2, the second tube 3, the third tube 4, the fourth tube 5, the fifth tube 6, and the sixth tube 7 are optionally parallel to each other. Of course, in other embodiments, the shapes of the first pipe 2, the second pipe 3, the third pipe 4, the fourth pipe 5, the fifth pipe 6, and the sixth pipe 7 may also be determined according to the installation space in the vehicle.
The embodiment also provides a commercial vehicle, which comprises the pipeline assembly of the aftertreatment reducing agent auxiliary circulation system, wherein the first pipe 2, the second pipe 3, the third pipe 4, the fourth pipe 5, the fifth pipe 6 and the sixth pipe 7 are respectively communicated with the parallel three-way pipe 1 by adopting an integrated structure, so that the integration degree is high, and when the pipeline assembly works, on one hand, high-temperature cooling liquid of an engine can sequentially enter the third pipe 4, the parallel three-way pipe 1 and the first pipe 2 through a water outlet of the engine to heat a urea box, and then flows back into the engine through the second pipe 3, the parallel three-way pipe 1 and the fourth pipe 5; on the other hand, the high-temperature coolant of the engine can also enter the third pipe 4, the parallel three-way pipe 1 and the fifth pipe 6 in sequence through the water outlet of the engine to heat the urea nozzle, and then flows back to the engine through the sixth pipe 7, the parallel three-way pipe 1 and the fourth pipe 5, and as the connection ports of the first pipe 2, the second pipe 3, the third pipe 4, the fourth pipe 5, the fifth pipe 6 and the sixth pipe 7 are respectively provided with the quick-plugging connectors 8, the assembly efficiency is high, and the maintenance convenience is good.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (9)
1. An aftertreatment reductant auxiliary circulation system pipe assembly, characterized by comprising a shunt tee (1), a first pipe (2) and a second pipe (3) are integrated on a first side of the shunt tee (1), the first pipe (2) is configured to be connected with a water inlet of a urea tank, the second pipe (3) is configured to be connected with a water outlet of the urea tank, a third pipe (4) and a fourth pipe (5) are integrated on a second side of the shunt tee (1), the third pipe (4) is configured to be connected with a water outlet of an engine, the fourth pipe (5) is configured to be connected with a water return port of the engine, a fifth pipe (6) and a sixth pipe (7) are integrated on a third side of the shunt tee (1), the fifth pipe (6) is configured to be connected with a water inlet of a urea nozzle, the sixth pipe (7) is configured to be connected with a water outlet of the urea nozzle, and connection ports of the first pipe (2), the second pipe (3), the third pipe (4), the fourth pipe (5), the fifth pipe (6) and the sixth pipe (7) are respectively provided with a quick-plug connector (8).
2. The aftertreatment reductant auxiliary circulation system pipe assembly of claim 1, wherein the first pipe (2), the second pipe (3), the third pipe (4), the fourth pipe (5), the fifth pipe (6) and the sixth pipe (7) are all made of polydodecalactam material.
3. The aftertreatment reductant auxiliary circulation system piping assembly of claim 1, wherein the quick connector (8) is crimped to a connection port of the first tube (2), the second tube (3), the third tube (4), the fourth tube (5), the fifth tube (6), or the sixth tube (7) using a press fit machine.
4. The aftertreatment reductant auxiliary circulation system piping assembly of claim 1, wherein the quick-connect coupling (8) is laser welded to a connection port of the first (2), second (3), third (4), fourth (5), fifth (6) or sixth (7) pipe.
5. The aftertreatment reductant auxiliary circulation system pipe assembly of claim 1, wherein the quick-connect coupling (8) is ultrasonically welded to the connection port of the first (2), second (3), third (4), fourth (5), fifth (6) or sixth (7) pipe.
6. The aftertreatment reductant auxiliary circulation system pipe assembly of claim 1, wherein the first side and the second side are opposite sides of the shunt tee (1), respectively.
7. The aftertreatment reductant auxiliary circulation system conduit assembly of claim 1, wherein the third side is perpendicular to the first side and the second side, respectively.
8. Aftertreatment reductant auxiliary circulation system piping assembly according to claim 1, characterized in that the axes of the first (2), second (3), third (4), fourth (5), fifth (6) and sixth (7) pipes are parallel to each other.
9. A commercial vehicle comprising an aftertreatment reductant auxiliary circulation system conduit assembly according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022529136.5U CN214145628U (en) | 2020-11-04 | 2020-11-04 | Pipeline assembly of auxiliary circulating system for aftertreatment reducing agent and commercial vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022529136.5U CN214145628U (en) | 2020-11-04 | 2020-11-04 | Pipeline assembly of auxiliary circulating system for aftertreatment reducing agent and commercial vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214145628U true CN214145628U (en) | 2021-09-07 |
Family
ID=77562239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022529136.5U Active CN214145628U (en) | 2020-11-04 | 2020-11-04 | Pipeline assembly of auxiliary circulating system for aftertreatment reducing agent and commercial vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214145628U (en) |
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2020
- 2020-11-04 CN CN202022529136.5U patent/CN214145628U/en active Active
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