CN113090371A - Portable SCR system urea nozzle testing arrangement and system - Google Patents
Portable SCR system urea nozzle testing arrangement and system Download PDFInfo
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- CN113090371A CN113090371A CN202110487610.9A CN202110487610A CN113090371A CN 113090371 A CN113090371 A CN 113090371A CN 202110487610 A CN202110487610 A CN 202110487610A CN 113090371 A CN113090371 A CN 113090371A
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- scr system
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 251
- 239000004202 carbamide Substances 0.000 title claims abstract description 251
- 238000012360 testing method Methods 0.000 title claims abstract description 117
- 239000000243 solution Substances 0.000 claims abstract description 56
- 238000002347 injection Methods 0.000 claims abstract description 21
- 239000007924 injection Substances 0.000 claims abstract description 21
- 238000011084 recovery Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 238000010531 catalytic reduction reaction Methods 0.000 abstract description 2
- 238000011056 performance test Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000012800 visualization Methods 0.000 description 2
- 208000032365 Electromagnetic interference Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000013024 troubleshooting Methods 0.000 description 1
Images
Classifications
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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
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
-
- 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
- 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
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
-
- 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
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Landscapes
- 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)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention relates to the technical field of automobile exhaust aftertreatment, and particularly discloses a portable urea nozzle testing device of an SCR (selective catalytic reduction) system, which comprises: the test box comprises a test box main body, and a urea nozzle, a urea pump, a urea box, a controller and a display module which are positioned in the test box main body; the controller is capable of sending a start control signal to the urea pump and an injection control signal to the urea nozzle; the urea pump can start to build pressure, receive the urea solution provided by the urea box, return the redundant urea solution to the urea box, and provide high-pressure urea solution for the urea nozzle; the urea box is used for providing urea solution for the urea pump; the urea nozzle can perform urea injection according to the injection control signal; the display module is used for displaying the test progress and the test content in the controller. The invention also discloses a portable SCR system urea nozzle testing system. The portable SCR system urea nozzle testing device provided by the invention can simply and conveniently realize the performance test of the urea nozzle.
Description
Technical Field
The invention relates to the technical field of automobile exhaust aftertreatment, in particular to a portable SCR system urea nozzle testing device and a portable SCR system urea nozzle testing system.
Background
At present, the adaptation of exhaust gas aftertreatment systems is required in parallel with the technological progress of internal combustion engines in order for automobiles to meet increasingly stringent emission regulations. In the traditional way of testing a urea nozzle component in an SCR (Selective Catalytic Reduction) system for exhaust gas aftertreatment, a complex test bench is often required to be built, and a redundant wire harness is laid, and meanwhile, the traditional way of testing the urea nozzle component in the SCR system depends on normal work of a large number of sensors and equipment. With the conventional testing method, a long test bench preparation period and high testing cost are required, and in the testing environment, various electromagnetic interferences accompany on the test bench, so that the testing difficulty of the nozzle and the difficulty of troubleshooting are increased. In addition, the conventional test table is inconvenient to move, and the use environment and the working range of the conventional test table are limited.
Disclosure of Invention
The invention provides a portable SCR system urea nozzle testing device and a portable SCR system urea nozzle testing system, which solve the problem of limitation in urea nozzle testing in the related technology.
As a first aspect of the present invention, there is provided a portable SCR system urea nozzle testing device, comprising:
the test box comprises a test box main body, and a urea nozzle, a urea pump, a urea box, a controller and a display module which are positioned in the test box main body, wherein the urea pump and the urea nozzle are connected with the urea box, and the urea pump, the urea nozzle and the display module are in communication connection with the controller;
the controller can send a starting control signal to the urea pump and can send an injection control signal to the urea nozzle according to a test program of an upper computer;
the urea pump can be started to build pressure according to the starting control signal, receive the urea solution provided by the urea box, return the redundant urea solution to the urea box and provide high-pressure urea solution for the urea nozzle;
the urea box is used for providing urea solution for the urea pump;
the urea nozzle can perform urea injection according to the injection control signal;
the display module is used for displaying the test progress and the test content in the controller.
Further, the urea pump with respectively through feed liquor pipe and return the liquid union coupling between the urea case, work as after the urea pump starts to build the pressure, the urea case can be through the feed liquor pipe to the urea pump provides urea solution, and the urea pump can be through return the liquid pipe and return unnecessary urea solution to the urea case.
Further, the urea pump is connected with the urea nozzle through an injection pipe, the urea nozzle is connected with the urea box through a urea solution recovery pipe, the urea pump can provide high-pressure urea solution to the urea nozzle through the injection pipe, and the urea nozzle can convey the injected urea solution back to the urea box through the urea solution recovery pipe.
Further, a filter is arranged between the urea tank and the urea solution recovery pipe, and the urea solution passing through the urea solution recovery pipe enters the urea tank through the filter.
Furthermore, a test program flashing interface is arranged on the test box main body and is in communication connection with the controller, and the test program flashing interface is used for writing a test program of an upper computer into the controller.
Furthermore, a power switch is arranged on the test box main body and electrically connected with the controller for controlling the connection and disconnection of power supply.
Further, portable SCR system urea nozzle testing arrangement still includes battery module, battery module with the master controller is connected for the work of master controller provides power supply.
Further, the controller includes an ACU.
Further, the display module includes a display screen.
As another aspect of the invention, a portable SCR system urea nozzle testing system is provided, which comprises: host computer and the preceding portable SCR system urea nozzle testing arrangement, the host computer with controller communication connection among the portable SCR system urea nozzle testing arrangement, the host computer be used for to the controller provides multiple test program, the controller can be according to the test program realization of host computer is right the test of the urea nozzle among the portable SCR system urea nozzle testing arrangement.
The portable SCR system urea nozzle testing device provided by the invention realizes the test of the urea nozzle through the controller according to the test program, and the test can be carried out only by switching on the urea nozzle in the testing box body to a power supply when in use, and has the advantages of simple testing structure, convenience in operation, low manufacturing cost, light weight and portability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic structural diagram of a portable SCR system urea nozzle testing device provided by the present invention.
FIG. 2 is a flowchart of a specific operation process of the portable SCR system urea nozzle testing device provided by the invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In this embodiment, a portable SCR system urea nozzle testing device is provided, and fig. 1 is a schematic structural diagram of the portable SCR system urea nozzle testing device according to an embodiment of the present invention, as shown in fig. 1, including: the test box comprises a test box main body 1, and a urea nozzle 3, a urea pump 17, a urea box 14, a controller 7 and a display module 12 which are positioned in the test box main body 1, wherein the urea pump 17 and the urea nozzle 3 are connected with the urea box 14, and the urea pump 17, the urea nozzle 3 and the display module 12 are in communication connection with the controller 7;
the controller 7 can send a starting control signal to the urea pump 17 and can send an injection control signal to the urea nozzle 3 according to a test program of an upper computer;
the urea pump 17 can start and build pressure according to the start control signal, receive the urea solution provided by the urea tank 14, return the excess urea solution to the urea tank 14, and provide high-pressure urea solution to the urea nozzle 3;
the urea tank 14 is used for supplying urea solution to the urea pump 17;
the urea nozzle 3 can perform urea injection according to the injection control signal;
the display module 12 is used for displaying the test progress and the test content in the controller 7.
The portable SCR system urea nozzle testing device provided by the embodiment of the invention realizes the test of the urea nozzle through the controller according to the test program, and the test can be carried out only by switching on the urea nozzle in the testing box body after the power supply is switched on when the device is used, so that the device has the advantages of simple testing structure, convenience in operation, low manufacturing cost, light weight and portability.
Specifically, the urea pump 17 is in communication connection with the controller 7 through a control signal wiring harness 6, the urea nozzle 3 is in communication connection with the controller 7 through a PWM signal wiring harness 4, and the display module 12 is in communication connection with the controller 7 through a display signal wiring harness 11.
Specifically, the urea pump 17 and the urea tank 14 are connected by a liquid inlet pipe 13 and a liquid return pipe 16, respectively, after the urea pump 17 starts to build pressure, the urea tank 14 can provide urea solution to the urea pump 17 through the liquid inlet pipe 13, and the urea pump 17 can return surplus urea solution to the urea tank 14 through the liquid return pipe 16.
Specifically, the urea pump 17 is connected to the urea nozzle 3 through an injection pipe 18, the urea nozzle 3 is connected to the urea tank 14 through a urea solution recovery pipe 2, the urea pump 17 can supply a high-pressure urea solution to the urea nozzle 3 through the injection pipe 18, and the urea nozzle 3 can deliver the injected urea solution to the urea tank 14 through the urea solution recovery pipe 2.
Further specifically, a filter 15 is provided between the urea tank 14 and the urea solution recovery pipe 2, and the urea solution passing through the urea solution recovery pipe 2 passes through the filter 15 and enters the urea tank 14.
It should be understood that a urea solution recovery pipe 2 is provided at the urea nozzle 3, so that the injected urea solution is returned to the urea tank 14 through a filter 15 for recycling, saving resources, and also facilitating further reduction of the volume of the test tank.
Specifically, a test program flashing interface 10 is arranged on the test box main body 1, the test program flashing interface 10 is in communication connection with the controller 7, and the test program flashing interface 10 is used for writing a test program of an upper computer into the controller 7.
It should be understood that the application range of the test box main body can be extended by providing the test program writing interface on the test box main body 1, so that test programs with different functions can be written as required.
Specifically, a power switch 8 is arranged on the test box main body 1, and the power switch 8 is electrically connected with the controller 7 and used for controlling the connection and disconnection of power supply.
Specifically, portable SCR system urea nozzle testing arrangement still includes battery module, battery module with the master controller is connected for the work of master controller provides power supply.
It should be understood that the battery module may be connected to the power switch 8 through a power input terminal 9, so that the purpose of supplying power to the controller 7 through the battery module may be achieved.
Preferably, the battery module can adopt 12V ~24V stabiliser and battery power supply, reduces signal interference when guaranteeing voltage stability, improves the measuring accuracy, and safe and reliable has also expanded the test box and has used the scene.
In the embodiment of the present invention, the controller 7 includes an ACU (after treatment Control Unit).
In an embodiment of the present invention, the display module 12 includes a display screen.
It should be understood that, a display screen is arranged on the test box main body 1, which can provide information such as test progress and realize the visualization of the test process.
The specific operation of the portable SCR system urea nozzle testing device provided by the embodiment of the present invention is described in detail with reference to fig. 1 and 2.
The portable SCR system urea nozzle testing device comprises a testing box main body 1, wherein five modules, namely a urea nozzle 3, a urea pump 17, a urea box 14, a controller 7 and a display module 12, are fixed inside the testing box main body 1. In a test, after the urea pump 17 receives a start control signal from the controller 7 through the control signal wire harness 6, the motor inside the urea pump 17 is started and starts to build pressure, the urea tank 14 provides urea solution to the urea pump 17 through the liquid inlet pipe 13, and the urea pump 17 returns redundant solution to the urea tank 14 through the liquid return pipe 16, so that the pressure of the solution stored inside the urea pump 17 is stable.
The urea pump 17 provides high-pressure urea solution to the urea nozzle 3 through the injection pipe 18, the urea nozzle 3 receives an injection control signal from the controller 7 through the PWM signal wire harness 4, the urea nozzle 3 can be triggered to act by opening the nozzle switch 5 and urea injection is carried out, different test urea nozzle 3 samples can be replaced by closing the nozzle switch 5, and the urea solution injected by the urea nozzle 3 is conveyed back to the urea box 14 through the urea solution recovery pipe 2 and the filter 15, so that the purposes of cleaning the urea solution and recycling the urea solution are achieved.
It should be understood that the recyclable design of the urea solution to be tested enables the test box main body to be continuously tested for a long time, and is beneficial to the performance tests of the durability, urea crystallization and the like of the urea nozzle.
The controller 7 can be in communication connection with an upper computer through the test program flashing interface 10 and can flash different test programs so as to meet different test requirements; the controller 7 transmits display signals such as test progress, test content and the like to the display module 12 through the display signal wire harness 11, and visualization of a test process is achieved.
In addition, because the connecting wire harness and the pipeline between the modules in the test box main body 1 in the embodiment of the invention can be independently disassembled, the modularized connecting mode is convenient for later-stage disassembly and maintenance and replacement of vulnerable parts, and the use cost is reduced.
As another embodiment of the invention, a portable SCR system urea nozzle testing system is provided, which comprises: host computer and the preceding portable SCR system urea nozzle testing arrangement, the host computer with controller communication connection among the portable SCR system urea nozzle testing arrangement, the host computer be used for to the controller provides multiple test program, the controller can be according to the test program realization of host computer is right the test of the urea nozzle among the portable SCR system urea nozzle testing arrangement.
According to the portable SCR system urea nozzle testing system provided by the embodiment of the invention, a plurality of different testing programs are provided through the upper computer, and the testing of various performances of different urea nozzles can be realized.
For a specific working principle of the portable SCR system urea nozzle testing system provided by the embodiment of the present invention, reference may be made to the description of the portable SCR system urea nozzle testing device, and details are not described herein.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (10)
1. A portable SCR system urea nozzle testing arrangement which characterized in that includes:
the test box comprises a test box main body, and a urea nozzle, a urea pump, a urea box, a controller and a display module which are positioned in the test box main body, wherein the urea pump and the urea nozzle are connected with the urea box, and the urea pump, the urea nozzle and the display module are in communication connection with the controller;
the controller can send a starting control signal to the urea pump and can send an injection control signal to the urea nozzle according to a test program of an upper computer;
the urea pump can be started to build pressure according to the starting control signal, receive the urea solution provided by the urea box, return the redundant urea solution to the urea box and provide high-pressure urea solution for the urea nozzle;
the urea box is used for providing urea solution for the urea pump;
the urea nozzle can perform urea injection according to the injection control signal;
the display module is used for displaying the test progress and the test content in the controller.
2. The portable SCR system urea nozzle testing device of claim 1, wherein the urea pump and the urea tank are connected by a liquid inlet pipe and a liquid return pipe, respectively, after the urea pump starts to build pressure, the urea tank can provide urea solution to the urea pump through the liquid inlet pipe, and the urea pump can return redundant urea solution to the urea tank through the liquid return pipe.
3. The portable SCR system urea nozzle testing device of claim 1, wherein the urea pump is connected to the urea nozzle through an injection pipe, the urea nozzle is connected to the urea tank through a urea solution recovery pipe, the urea pump can supply a high-pressure urea solution to the urea nozzle through the injection pipe, and the urea nozzle can transport the injected urea solution back to the urea tank through the urea solution recovery pipe.
4. The portable SCR system urea nozzle testing device of claim 3, wherein a filter is disposed between the urea tank and the urea solution recovery pipe, and the urea solution passing through the urea solution recovery pipe passes through the filter and enters the urea tank.
5. The urea nozzle testing device of the portable SCR system of claim 1, wherein a test program flashing interface is arranged on the test box main body and is in communication connection with the controller, and the test program flashing interface is used for writing a test program of an upper computer into the controller.
6. The urea nozzle testing device of a portable SCR system of claim 1, wherein a power switch is disposed on the testing box body, and the power switch is electrically connected to the controller for controlling the power supply to be turned on and off.
7. The portable SCR system urea nozzle testing device of claim 1, further comprising a battery module connected to the master controller for providing a power supply for the operation of the master controller.
8. The portable SCR system urea nozzle testing device of claim 1, wherein the controller comprises an ACU.
9. The portable SCR system urea nozzle testing device of claim 1, wherein the display module comprises a display screen.
10. A portable SCR system urea nozzle test system characterized by, includes: the portable SCR system urea nozzle testing device comprises an upper computer and the portable SCR system urea nozzle testing device according to any one of claims 1 to 9, wherein the upper computer is in communication connection with a controller in the portable SCR system urea nozzle testing device, the upper computer is used for providing various testing programs for the controller, and the controller can realize the test of a urea nozzle in the portable SCR system urea nozzle testing device according to the testing programs of the upper computer.
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| CN202110487610.9A CN113090371A (en) | 2021-05-06 | 2021-05-06 | Portable SCR system urea nozzle testing arrangement and system |
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| CN202110487610.9A CN113090371A (en) | 2021-05-06 | 2021-05-06 | Portable SCR system urea nozzle testing arrangement and system |
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