CN209671184U - Urea pump detection device - Google Patents
Urea pump detection device Download PDFInfo
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- CN209671184U CN209671184U CN201920350731.7U CN201920350731U CN209671184U CN 209671184 U CN209671184 U CN 209671184U CN 201920350731 U CN201920350731 U CN 201920350731U CN 209671184 U CN209671184 U CN 209671184U
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- urea
- urea pump
- detection device
- post
- engine control
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 211
- 239000004202 carbamide Substances 0.000 title claims abstract description 211
- 238000001514 detection method Methods 0.000 title claims abstract description 47
- 238000012805 post-processing Methods 0.000 claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 7
- 210000002700 urine Anatomy 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000003213 activating effect Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 12
- 238000000034 method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- 239000000443 aerosol Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model discloses a kind of urea pump detection devices, it include: apparatus body, apparatus body is equipped with urea box, engine control module, post-processing module, urea metering units, air supply valve, power supply, diagnostic device and computer, power supply and engine control module, post-processing module and diagnostic device are electrically connected, urea pump is suitable for being respectively connected with urea box and urea metering units, diagnostic device is connected with computer, air supply valve is respectively connected with gas source and urea metering units, urea metering units include at least one sensor and metering valve, sensor, metering valve, post-processing module and computer with engine control module communication connection, engine control module receives and analyzes the signal from sensor, and control the on-off of metering valve, post-processing module receives the instruction that engine control module issues and controls urine The on-off of element pump and air supply valve.Urea pump detection device according to the present utility model, shortens entire test working hour, and pollution is few.
Description
Technical field
The utility model relates to detection technique fields, more particularly, to a kind of urea pump detection device.
Background technique
With sharply increasing for urea pump number of faults in the market, the requirement for urea pump fault detection and analysis efficiency
Also higher and higher.In the related technology, by the way that urea pump to be detected to be mounted on vehicle, it is allowed to be in working environment, then
Further according to vehicle mounted electrical apparatus equipment and specific diagnostic tool determine urea pump whether failure.However, this detection mode have with
Lower disadvantage:
(1) cumbersome: operating space is narrow, is not easy to assembly and disassembly urea pump；
(2) test working hour is long: urea pump of replacement to the entire test of completion (including preparation, dismounting working hour, test
Work etc.) averagely need 121 minutes；
(3) high to the skill requirement of operator: the test is urinated in addition to needing operator that can correctly dismount on vehicle
Except element pump, also need to will use specific test software；
(4) cleannes and environment are unable to control: not can avoid and urea leakage is caused to be spread across on ground.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.For this purpose, the utility model
One purpose is to propose a kind of urea pump detection device, improves the detection efficiency of urea pump.
According to the urea pump detection device of the utility model embodiment, comprising: apparatus body, the apparatus body are equipped with
Urea box, engine control module, post-processing module, urea metering units, air supply valve, power supply, diagnostic device and computer,
The power supply is electrically connected with the engine control module, the post-processing module and the diagnostic device to provide electric power,
Wherein urea pump to be detected is suitable for being respectively connected with the urea box and the urea metering units, the diagnostic device and institute
It states computer and is connected and be suitable for activating the urea pump work, the air supply valve and gas source and the urea metering units are distinguished
Be connected, the urea metering units include at least one sensor and metering valve, the sensor, the metering valve, it is described after
With the engine control module communication connection, the engine control module receives and analyzes for processing module and the computer
The on-off of signal from the sensor and the control metering valve, the post-processing module receive the engine control
The instruction of module sending and the on-off for controlling the urea pump and the air supply valve.
According to the urea pump detection device of the utility model embodiment, the operating space on urea pump detection device is bigger,
Convenient for assembling and disassembling urea pump to be detected, so as to save dismounting working hour, and then entire test working hour is shortened, moreover, because
Without assembling and disassembling urea pump to be detected on vehicle, to reduce the technical requirements to operator.In addition, due to not needing
Vehicle starting, is not also just discharged, to reduce pollution.
Some embodiments according to the present utility model, the apparatus body are equipped with forwardly convex workbench, the work
Make platform equipped with urea pump mounting bracket, wherein the urea pump is adapted to mount in the urea pump mounting bracket.
Some embodiments according to the present utility model, the computer and the power supply are all provided on the workbench.
Some embodiments according to the present utility model, the urea metering units and the air supply valve are located at described set
In the front surface of standby ontology and positioned at the top of the workbench.
Some embodiments according to the present utility model are placed with beaker on the workbench, and the beaker is located at the urine
The lower section of plain metering units.
Some embodiments according to the present utility model, the urea box, the engine control module, the post-processing mould
Block and the diagnostic device are each provided in the apparatus body.
Some embodiments according to the present utility model, the urea box are located at the lower part in the apparatus body, the hair
Motivation control module, the post-processing module and the diagnostic device are respectively positioned on the top in the apparatus body.
Some embodiments according to the present utility model, the urea box is interior to be equipped with liquid level sensor, the liquid level sensor
With the post-processing module communication connection.
Some embodiments according to the present utility model, what is held in the urea box is water or urea liquid.
Some embodiments according to the present utility model, the air supply valve are solenoid valve.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the schematic diagram according to the urea pump detection device of the utility model embodiment；
Fig. 2 is the rearview of urea pump detection device shown in Fig. 1；
Fig. 3 is the schematic diagram according to the urea pump detection device of the utility model embodiment.
Appended drawing reference:
100: urea pump detection device；
1: apparatus body；
11: urea box；12: engine control module；13: post-processing module；
14: urea metering units；141: sensor；
15: air supply valve；16: power supply；17: diagnostic device；18: computer；
2: workbench；21: urea pump mounting bracket；
3: beaker；200: urea pump.
Specific embodiment
The embodiments of the present invention are described below in detail, the embodiment being described with reference to the drawings is exemplary, below in detail
Thin description the embodiments of the present invention.
Below with reference to Fig. 1-Fig. 3 description according to the urea pump detection device 100 of the utility model embodiment.Urea pump detection
Equipment 100 is used to detect the performance of urea pump 200.
As shown in Figure 1-Figure 3, according to the urea pump detection device 100 of the utility model embodiment, including apparatus body 1.
Specifically, apparatus body 1 is equipped with urea box 11, engine control module 12, post-processing module 13, ureometer
Measure unit 14, air supply valve 15, power supply 16, diagnostic device 17 and computer 18.Urea box 11 is for stored urea solution etc..Urine
Plain metering units 14 are for accurately controlling the supply amount of urea.Power supply 16 and engine control module 12, post-processing (SCR,
Selective Catalytic Reduction, selective catalytic reduction) module 13 and diagnostic device 17 be electrically connected to provide
Electric power.Power supply 16 is used to power to engine control module 12, post-processing module 13 and diagnostic device 17.
Wherein urea pump 200 to be detected is suitable for being respectively connected with urea box 11 and urea metering units 14.Urea pump 200
For providing urea pressure.It specifically, can be by urea pump to be detected for example, when needing to detect urea pump 200
200 are placed on apparatus body 1, and by urea pump 200 for example by way of pipeline with urea box 11 and urea metering units
14 are separately connected, in this way, urea pump 200 can extract urea liquid, urea liquid mistake in urea pump 200 out from urea box 11
Certain pressure is forced into after filter, for example, 5~6bar (bar, indicate the unit of pressure), it is then pumped to urea metering units again
14。
Diagnostic device 17 is connected with computer 18 is suitable for that urea pump 200 is activated to work.Wherein, it can be equipped in computer 18
Diagnostic software (for example, open shell etc.) corresponding with diagnostic device 17, for activating urea pump 200 to make its work to complete
Test.
Air supply valve 15 is respectively connected with gas source and urea metering units 14.For example, air supply valve 15 can be with urine
Plain metering units 14 pass through piping connection.Air supply valve 15 can be used for controlling whether gas source leads into urea metering units 14
Enter air, and control bleed pressure, is allowed to meet the requirements, specifically, the hyperbar that air supply valve 15 can come gas source
Needs, stable low pressure is dropped to, for the use of urea metering units 14.Optionally, air supply valve 15 may include electricity
Magnetic part, decompression part and one-way conduction part.When air supply valve 15 is opened, the air in gas source can be supplied by air
One continuous compressed air is blowed into urea metering units 14 to valve 15, when urea liquid also enters urea metering list simultaneously
When in member 14, compressed air can take away urea liquid and be mixed into aerosol ejection.Wherein, gas source can be tested to meet
The gas source of condition, for example, the atmospheric pressure in gas source is 6bar.When air supply valve 15 is closed, air in gas source then without
Method enters urea metering units 14 by air supply valve 15.
Urea metering units 14 include at least one sensor 141 and metering valve.Wherein, sensor 141 can be multiple,
Multiple sensors 141 can be used for detecting the pressure, temperature and air pressure of the urea liquid in urea metering units 14 respectively
Power etc..The meaning of " plurality " is two or more in the description of the present invention,.Metering valve can be used for controlling urea
Whether solution enters in urea metering units 14.
Sensor 141, metering valve, post-processing module 13 and computer 18 with 12 communication connection of engine control module, are sent out
Motivation control module 12 receives and analyzes the signal from sensor 141 and controls the on-off of metering valve, and post-processing module 13 connects
Receive the instruction that engine control module 12 issues and the on-off for controlling urea pump 200 and air supply valve 15.Mould is post-processed at this time
Block 13 can control urea pump 200 and sky with urea pump 200 and the equal communication connection of air supply valve 15, post-processing module 13
The on-off of gas supply valve 15.
The work and operation of vehicle after-treatment system are simulated by using above-mentioned urea pump detection device 100 as a result,
Condition activates test using diagnostic device 17, to detect the failure of urea pump 200 to be detected etc..Specifically, for example,
Test can be activated by the open shell in computer 18, simulation vehicle discharges exceeded operating condition, so that metering valve is beaten
It opens, the urea liquid in urea box 11 can enter urea metering units 14 by urea pump 200, and urea metering units 14 spray
Penetrate urea；When not needing injection urea, metering valve is closed, the urea in urea pump 200 can flow back into urea box 11 at this time
In.In above-mentioned detection process, urea liquid pressure can be detected by sensor 141 and be obtained, and be sent to engine control mould
Block 12, engine control module 12 send it to computer 18 again, and operator can read urea liquid pressure from computer 18
Power, so as to judge whether urea pump 200 is normal.
Operating space according to the urea pump detection device 100 of the utility model embodiment, on urea pump detection device 100
It is bigger, convenient for assembling and disassembling urea pump 200 to be detected, so as to save dismounting working hour, and then entire test working hour is shortened, and
And due to being not necessarily to assemble and disassemble urea pump 200 to be detected on vehicle, to reduce the technical requirements to operator.In addition,
Due to not needing vehicle starting, also just do not discharge, to reduce pollution.
Some embodiments according to the present utility model referring to Fig.1 and combine Fig. 2, and apparatus body 1 is equipped with forwardly convex
Workbench 2, workbench 2 are equipped with urea pump mounting bracket 21, and wherein urea pump 200 is adapted to mount to urea pump mounting bracket 21
On.For example, in the example of fig. 1 and 2, workbench 2 is generally located at the middle part of apparatus body 1 in the up-down direction, in order to
The upper surface of operator's operation, workbench 2 is horizontal, and urea pump mounting bracket 21 is mounted on the upper surface of workbench 2, not only
The installation for facilitating urea pump mounting bracket 21, improves assembly efficiency, moreover, because the operating space of workbench 2 is big, thus
So that the installation and removal of urea pump 200 are very convenient, the dismounting working hour of urea pump 200 is shortened, and then is greatly improved
The detection efficiency of urea pump 200.In addition, when installing urea pump 200, since urea pump 200 to be detected can be mounted directly
It is connect in urea pump mounting bracket 21, then by it with urea box 11, urea metering units 14, air supply valve 15；In
When dismantling urea pump 200, it can be disconnected with urea box 11, urea metering units 14, air supply valve 15, then from urea pump
It is removed in mounting bracket 21, compared with dismounting urea pump 200, significantly reduces the skill to operator on vehicle with traditional
It can require.
Further, as shown in Figure 1, computer 18 and power supply 16 are each provided on workbench 2.For example, in the example of fig. 1,
Computer 18 and power supply 16 are arranged on the upper surface of workbench 2, and computer 18 is located at the center of workbench 2, and power supply 16 is located at work
Make the left side of platform 2.Computer 18 is between power supply 16 and urea pump mounting bracket 21 at this time.Operator can be very as a result,
Power supply 16 is easily opened and closed, and computer 18 is operated.
Some embodiments according to the present utility model, referring to Fig.1, urea metering units 14 and air supply valve 15 are located at
In the front surface of standby ontology 1 and positioned at the top of workbench 2.Urea metering units 14 and air supply valve 15 can be square as a result,
Just it is attached or dismantles with urea pump 200 to be detected, further improve assembly and disassembly efficiency.
Further, beaker 3 is placed on workbench 2, beaker 3 is located at the lower section of urea metering units 14, such as Fig. 1 institute
Show.The urea liquid etc. sprayed as a result, from urea metering units 14 can be stored in beaker 3, and urea sprays in the unit time
The amount of penetrating can directly be read by beaker 3.Certainly, in order to improve the accuracy of measurement, urea injecting quantity can also in the unit time
To be measured by measuring cup.By urea injecting quantity in the acquisition unit time, can further judge whether urea pump 200 is normal,
Improve the accuracy judged 200 fault detection of urea pump.
Some embodiments according to the present utility model, as shown in Fig. 2, urea box 11, engine control module 12, post-processing
Module 13 and diagnostic device 17 are each provided in apparatus body 1.As a result, entire urea pump detection device 100 is compact-sized,
Tailored appearance.
Further, urea box 11 is located at the lower part in apparatus body 1, engine control module 12, post-processing module 13
The top in apparatus body 1 is respectively positioned on diagnostic device 17.For example, in the figure 2 example, urea box 11 is located at workbench 2
Lower section, engine control module 12, post-processing module 13 and diagnostic device 17 are respectively positioned on the top of workbench 2.Urea box as a result,
11 weight is relatively heavy, and the center of gravity of entire urea pump detection device 100 on the lower, can make entire urea pump detection device
100 structure is more stable.
Some embodiments according to the present utility model are equipped with liquid level sensor 141 (not shown go out), liquid level in urea box 11
Sensor 141 and 13 communication connection of post-processing module.It, can be in urea box 11 as a result, by setting liquid level sensor 141
Liquid level is monitored, convenient for urea liquid etc. is replenished in time into urea box 11.Post-processing module 13 can receive level sensing
The signal of device 141 simultaneously feeds back to engine control module 12.
Optionally, what is held in urea box 11 is water or urea liquid etc..When what is held in urea box 11 is that water for example steams
When distilled water, water is pollution-free and cheap, moreover, if storage does not have to the case where blocking will not occur after having detected urea pump 200.
Optionally, air supply valve 15 is solenoid valve.As a result, by using automatically controlled mode, air supply may be implemented
Valve 15 automatically opening and closing.But not limited to this.
Optionally, metering valve is electric controlled metering valve.But not limited to this.
It can be such that according to the operating procedure of the urea pump detection device 100 of the utility model embodiment
(1) urea pump 200 to be tested is installed to urea pump mounting bracket 21, connects each pipeline；
(2) engine control module 12, post-processing module 13 and diagnostic device 17 connect power supply 16 by power supply line respectively
Such as 24V DC power supply (the activation test of urea pump 200 needs 24V power supply, and urea metering units 14 need 12V power supply)；
(3) the intake interface connection gas source of valve 15 is supplied air to；
(4) wire for PC connects computer 18；
(5) urea pump 200 is activated to make its work to complete to test by computer 18.
It can be such that according to the course of work of the urea pump detection device 100 of the utility model embodiment
Urea pump 200 extracts urea liquid out from urea box 11, and urea liquid is pressurizeed after filtering in urea pump 200
To 5~6bar, urea metering units 14 are then pumped to by pipeline, by the metering valve in urea metering units 14 come accurate
Control the supply amount of urea.One continuous compressed air is blown into urea metering by air supply valve 15 by the air in gas source
Unit 14, when urea liquid is sprayed onto urea metering units 14 by metering valve, compressed air just takes away urea liquid and mix
Aerosol is synthesized, is ejected into beaker 3.
In this way, solution pressure, urea injecting quantity in the collection unit time of beaker 3 are detected by computer 18, to judge to urinate
Whether element pump 200 is normal.
According to the urea pump detection device 100 of the utility model embodiment, urea pump 200 can be simulated and post-processed in vehicle
The working environment of system carries out fault detection, overall structure to urea pump 200 used in OM457 engine aftertreatment system
Simply, assembling is easy, easy to maintain, and electricity is taken to take gas safe, and connection is reliable, greatly reduces because of urea pump 200 and detection device
Time required for dismounting, the detection efficiency of urea pump 200 can be greatly improved.Moreover, the operation letter of urea pump detection device 100
It is single and pollution-free to ambient enviroment in the detection process.
In the description of the present invention, it should be understood that term " center ", "upper", "lower", "front", "rear",
"left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", etc. instructions orientation or positional relationship be based on attached drawing
Shown in orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion institute
The device or element of finger must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to this reality
With novel limitation.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are contained at least one embodiment or example of the utility model.In the present specification, to above-mentioned art
The schematic representation of language may not refer to the same embodiment or example.
While there has been shown and described that the embodiments of the present invention, it will be understood by those skilled in the art that:
These embodiments can be carried out with a variety of variations, modification, replacement in the case where not departing from the principles of the present invention and objective
And modification, the scope of the utility model are defined by the claims and their equivalents.
Claims (10)
1. a kind of urea pump detection device characterized by comprising
Apparatus body, the apparatus body be equipped with urea box, engine control module, post-processing module, urea metering units,
Air supply valve, power supply, diagnostic device and computer, the power supply and the engine control module, the post-processing module and
The diagnostic device is electrically connected to provide electric power, wherein urea pump to be detected is suitable for and the urea box and the ureometer
Amount unit is respectively connected with, and the diagnostic device is connected with the computer is suitable for activating the urea pump work, and the air supplies
It is respectively connected with to valve and gas source and the urea metering units, the urea metering units include at least one sensor and metering
Valve, the sensor, the metering valve, the post-processing module and the computer, which are communicated with the engine control module, to be connected
It connects, the engine control module receives and analyze the on-off of the signal from the sensor and the control metering valve, institute
Post-processing module is stated to receive the instruction of the engine control module sending and control the urea pump and the air supply valve
On-off.
2. urea pump detection device according to claim 1, which is characterized in that the apparatus body is equipped with forwardly convex
Workbench, the workbench is equipped with urea pump mounting bracket, wherein the urea pump is adapted to mount to urea pump peace
It fills on bracket.
3. urea pump detection device according to claim 2, which is characterized in that the computer and the power supply are each provided at institute
It states on workbench.
4. urea pump detection device according to claim 2, which is characterized in that the urea metering units and the air
Supply valve is located at the top in the front surface of the apparatus body and being located at the workbench.
5. urea pump detection device according to claim 4, which is characterized in that be placed with beaker, institute on the workbench
State the lower section that beaker is located at the urea metering units.
6. urea pump detection device according to any one of claims 1-5, which is characterized in that the urea box, described
Engine control module, the post-processing module and the diagnostic device are each provided in the apparatus body.
7. urea pump detection device according to claim 6, which is characterized in that the urea box is located at the apparatus body
Interior lower part, the engine control module, the post-processing module and the diagnostic device are respectively positioned in the apparatus body
Top.
8. urea pump detection device according to claim 1, which is characterized in that be equipped with level sensing in the urea box
Device, the liquid level sensor and the post-processing module communication connection.
9. urea pump detection device according to claim 1, which is characterized in that is held in the urea box is water or urine
Plain solution.
10. urea pump detection device according to claim 1, which is characterized in that the air supply valve is solenoid valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920350731.7U CN209671184U (en) | 2019-03-19 | 2019-03-19 | Urea pump detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920350731.7U CN209671184U (en) | 2019-03-19 | 2019-03-19 | Urea pump detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209671184U true CN209671184U (en) | 2019-11-22 |
Family
ID=68572111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920350731.7U Expired - Fee Related CN209671184U (en) | 2019-03-19 | 2019-03-19 | Urea pump detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209671184U (en) |
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2019
- 2019-03-19 CN CN201920350731.7U patent/CN209671184U/en not_active Expired - Fee Related
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Granted publication date: 20191122 |