CN208594995U - Vent gas treatment liquid turbidity detection device and tail gas treatment system of diesel engine - Google Patents
Vent gas treatment liquid turbidity detection device and tail gas treatment system of diesel engine Download PDFInfo
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- CN208594995U CN208594995U CN201821178472.6U CN201821178472U CN208594995U CN 208594995 U CN208594995 U CN 208594995U CN 201821178472 U CN201821178472 U CN 201821178472U CN 208594995 U CN208594995 U CN 208594995U
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- gas treatment
- treatment liquid
- vent gas
- transmitting set
- detection device
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- 239000007788 liquid Substances 0.000 title claims abstract description 86
- 238000001514 detection method Methods 0.000 title claims abstract description 52
- 230000003287 optical effect Effects 0.000 claims abstract description 125
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 55
- 239000004202 carbamide Substances 0.000 claims description 55
- 239000007864 aqueous solution Substances 0.000 claims description 52
- 230000003213 activating effect Effects 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 85
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 9
- 239000000428 dust Substances 0.000 description 7
- 239000000835 fiber Substances 0.000 description 7
- 239000012535 impurity Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000005213 imbibition Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000002283 diesel fuel Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 230000000903 blocking effect 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
- 239000012530 fluid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 238000000889 atomisation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 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
- 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
- Exhaust Gas After Treatment (AREA)
Abstract
The utility model provides a kind of vent gas treatment liquid turbidity detection device and tail gas treatment system of diesel engine.Vent gas treatment liquid turbidity detection device includes: the optical transmitting set for emitting light, and the optical transmitting set is source of parallel light；And for receive from the optical transmitting set emit light and generate based on its received light intensity signal multiple optical receivers.The optical transmitting set and the multiple optical receiver are arranged in the storage tank of vent gas treatment liquid and are immersed in the vent gas treatment liquid.According to the utility model, the vent gas treatment liquid turbidity in tail gas treatment system of diesel engine can be detected, so that it is guaranteed that the reliability service of exhaust treatment system.
Description
Technical field
The utility model relates to the detections of the vent gas treatment liquid turbidity of tail gas treatment system of diesel engine, more particularly to one kind
Vent gas treatment liquid turbidity detection device and including this vent gas treatment liquid turbidity detection device diesel engine vent gas processing
System.
Background technique
Diesel engine can generate the tail gas of the nitrogen oxides with high level after combustion, and this tail gas cannot be direct
It is discharged into air, but can be just discharged into atmosphere after needing to be handled by exhaust treatment system.To diesel engine
A kind of effective technology that the tail gas of machine discharge is handled is to reduce diesel engine using selective catalytic reduction (SCR) method
The content of the nitrogen oxide in tail gas of machine discharge.Selective catalytic reduction method in exhaust treatment system by using urea water
Solution handles the tail gas of diesel engine emissions, make nitrogen that in tail gas harmful conversion of nitrogen oxides is harmless and
Vapor, to reduce diesel engine noxious gas emission.
The vent gas treatment liquid of such as aqueous solution of urea be usually it is colorless and transparent, list is stored in exhaust treatment system
In only dedicated storage tank.When exhaust treatment system operation, the pump in conveying device passes through imbibition pipeline from storage tank extracted urea
Aqueous solution, and aqueous solution of urea is transported to certain pressure by injection apparatus by pressure piping.Then, injection apparatus is by urea
Aqueous solution atomization, and be quantitatively ejected into exhaust pipe.When vehicle lay-off or system break down needs pumping, conveying device
It completes that aqueous solution of urea in exhaust treatment system is emptied work and aqueous solution of urea is made to return to storage tank by return line.
The operating environment of diesel engine is usually very severe, and full of dust, fiber etc., replaces urea water opening storage tank
When solution, dust, fiber or other impurity may be introduced into storage tank due to misoperation.In addition, aqueous solution of urea exists
Dust, fiber or other impurity may also be carried when being evacuated to storage tank from conveying device.Therefore, when diesel engine vent gas processing system
When system operation, before aqueous solution of urea is pumped and is drawn onto conveying device, need that it is made to pass through the filter that pump upstream is arranged in
It is filtered, to prevent dust, fiber or other impurity in aqueous solution of urea from entering nozzle.In existing vent gas treatment system
In system, often since the variation of the turbidity of the aqueous solution of urea in storage tank can not be detected, cause to fail to replace urea water in time
Solution and clean tank cause dust, fiber or other impurity blocking filter and nozzle in aqueous solution of urea, so that urea
The supply of aqueous solution is unsmooth, and then reduces atomizing effect, causes engine power decline, flame-out or difficulty in starting and tail gas super
Mark.
Thus, there is an urgent need to the turbidities of the aqueous solution of urea to existing tail gas treatment system of diesel engine to detect.
Utility model content
It is muddy that one of the utility model is designed to provide a kind of vent gas treatment liquid for tail gas treatment system of diesel engine
Turbidity detection device, this vent gas treatment liquid turbidity detection device can be to the vent gas treatment in tail gas treatment system of diesel engine
Liquid turbidity is detected, so that it is guaranteed that the reliability service of exhaust treatment system.
It is muddy to provide a kind of vent gas treatment liquid for tail gas treatment system of diesel engine for one side according to the present utility model
Spend detection device, which is characterized in that the vent gas treatment liquid turbidity detection device includes:
For emitting the optical transmitting set of light, the optical transmitting set is source of parallel light；And
For receive from the optical transmitting set emit light and generate based on its received light intensity signal it is more
A optical receiver；
The optical transmitting set and the multiple optical receiver are arranged in the storage tank of vent gas treatment liquid and are immersed in described
In vent gas treatment liquid.
Preferably, the conveying of the optical transmitting set and the multiple optical receiver adjacent to the tail gas treatment system of diesel engine
The entrance of the imbibition pipeline of device is arranged.
Preferably, the multiple optical receiver includes:
Emit from the optical transmitting set and for receiving along the first optical receiver of the light of straightline propagation；And
For receiving at least one second optical receiver for the light for emitting and being scattered from the optical transmitting set.
Preferably, first optical receiver is arranged relative to each other with the optical transmitting set.
Preferably, the optical transmitting set is arranged in the internal side wall of the storage tank, and the first optical receiver setting exists
From the plate that the interior bottom wall of the storage tank is holded up.
Preferably, the inside that the optical transmitting set is arranged on is arranged at least one described second optical receiver
On side wall, it is arranged on the plate that first optical receiver is arranged on first optical receiver positioned at same
Side is arranged in the interior bottom wall between the optical transmitting set and first optical receiver, and/or is arranged in the light emitting
In internal side wall between device and first optical receiver.
Preferably, the optical transmitting set and multiple optical receivers are directly controlled by the electronic control unit of vehicle, the electricity
Sub-control unit can be operated to activate optical transmitting set and receive the signal from the multiple optical receiver and basis
The signal determines the turbidity of vent gas treatment liquid, when the turbidity of identified vent gas treatment liquid is more than threshold value, the electricity
Sub-control unit is sent to driver indicates that the turbidity of the vent gas treatment liquid in the storage tank is more than the alarm of the threshold value, with
It reminds driver to replace vent gas treatment liquid and cleans the storage tank.
Preferably, the vent gas treatment liquid turbidity detection device further includes coming from for activating optical transmitting set and receiving
The signal of the multiple optical receiver and determined according to the signal vent gas treatment liquid turbidity controller, when really
When the turbidity of fixed vent gas treatment liquid is more than threshold value, the controller is sent at the tail gas indicated in the storage tank to driver
The turbidity for managing liquid is more than the alarm of the threshold value, to remind driver to replace vent gas treatment liquid and clean the storage tank.
Preferably, the vent gas treatment liquid is aqueous solution of urea.
Another aspect according to the present utility model, a kind of tail gas treatment system of diesel engine using vent gas treatment liquid are special
Sign is that the tail gas treatment system of diesel engine includes above-mentioned vent gas treatment liquid turbidity detection device.
According to the utility model, due to being provided with tail gas in the vent gas treatment liquid storage tank in tail gas treatment system of diesel engine
Treatment fluid turbidity detection device is able to detect the turbidity of the vent gas treatment liquid in storage tank.In this way, driver's energy
The variation of enough turbidities for grasping the vent gas treatment liquid in storage tank in time, to prevent filter and nozzle by vent gas treatment liquid
Dust, fiber or other impurity blocking, and then guarantee exhaust treatment system reliability service.
Detailed description of the invention
Fig. 1 diagrammatically illustrates the diesel oil tail including vent gas treatment liquid turbidity detection device according to the present utility model
A part of gas processing system；
Fig. 2A schematically show the turbidity in vent gas treatment liquid it is low in the case where vent gas treatment liquid turbidity
Vent gas treatment liquid in the case that detection device and Fig. 2 B schematically show the height of the turbidity in vent gas treatment liquid is muddy
Turbidity detection device, wherein second optical receiver is shown as being arranged between optical transmitting set and the first optical receiver
In internal side wall；And
Fig. 3 shows the schematic logic diagram of vent gas treatment liquid turbidity detection device operation.
Specific embodiment
The preferred embodiment of the utility model is described in detail below with reference to example.It will be understood by those skilled in the art that
These exemplary embodiments are not meant to form any restrictions to the utility model.
Fig. 1 diagrammatically illustrates the diesel oil tail including vent gas treatment liquid turbidity detection device according to the present utility model
A part of gas processing system.As shown in Figure 1, tail gas treatment system of diesel engine 1 generally include for store such as urea it is water-soluble
The dedicated storage tank 5 of the vent gas treatment liquid of liquid 3, the injection apparatus 13 for spraying aqueous solution of urea 3 and be connected to storage tank 5 and spray
The conveying device 7 for transport urea aqueous solution 3 between injection device 13.As shown in Figure 1, in tail gas treatment system of diesel engine 1
In, aqueous solution of urea 3 is stored in storage tank 5, and when tail gas treatment system of diesel engine 1 is run, the pump in conveying device 7 is (not
Show) pass through imbibition pipeline 9 from 5 extracted urea aqueous solution 3 of storage tank, and it is with certain pressure that urea is water-soluble by pressure piping 11
Liquid 3 is transported to injection apparatus 13.Then, aqueous solution of urea 3 is atomized by injection apparatus 13, and is quantitatively ejected into exhaust pipe (not
Show) in.When vehicle lay-off or tail gas treatment system of diesel engine 1 break down needs pumping, conveying device 7 is completed to diesel oil
Aqueous solution of urea 3 in tail gas processing system 1 empties operation and aqueous solution of urea 3 is made to be back to storage tank by return pipe 10
5.It is different from tail gas treatment system of diesel engine in the prior art, in tail gas treatment system of diesel engine 1 according to the present utility model
In, it further include vent gas treatment liquid turbidity detection device 15 comprising for emitting the optical transmitting set 17 of light and for receiving
From optical transmitting set 17 emit light and generate based on its received light intensity signal multiple optical receiver 19a, 19b.
Optical transmitting set 17 is the source of parallel light of such as laser diode, is configured to generate the directional light of predetermined diameter (or width).
Optical transmitting set 17 and multiple optical receiver 19a, 19b are arranged in storage tank 5 and are immersed in aqueous solution of urea 3, so as to right
The turbidity of aqueous solution of urea 3 in storage tank 5 is detected.
In the preferred embodiment in figure 1, optical transmitting set 17 and multiple optical receiver 19a, 19b are shown as neighbouring conveying dress
The entrance 21 for setting 7 imbibition pipeline 9 is arranged, this is because the urea near the entrance 21 of the imbibition pipeline 9 of conveying device 7 is water-soluble
The turbidity of liquid 3 can typically reflect the haze levels of the aqueous solution of urea 3 in storage tank 5.It should be understood that light hair
Emitter 17 and multiple optical receiver 19a, 19b also can according to need at the other positions being arranged in storage tank 5.
Multiple optical receiver 19a, 19b of such as photodiode, photo resistance can receive to be emitted from optical transmitting set 17
Light, and can produce based on its received light intensity signal, such as voltage signal or current signal.Multiple light connect
Receiving device 19a, 19b includes emitting from optical transmitting set 17 and for receiving along the first light-receiving of the light of straightline propagation (directional light)
Device 19a and at least one second optical receiver for receiving the light (scattering light) for emitting and being scattered from optical transmitting set 17
19b。
As shown in Figure 1, optical transmitting set 17 is arranged in the internal side wall 23 of storage tank 5, one spacing of bottom apart from storage tank 5
From.First optical receiver 19a and optical transmitting set 17 are arranged relative to each other in the plate 27 holded up from the interior bottom wall 25 of storage tank 5
On, emitted from optical transmitting set 17 and with receiving along the directional light of straightline propagation.Second optical receiver 19b along directly receive from
The direction setting for the light that the optical transmitting set 17 emits.That is, at least one second optical receiver 19b can be set suitable
In any position for receiving the scattering light for emitting and being scattered from optical transmitting set 17.For example, at least one second optical receiver 19b
It can be set in the internal side wall 23 that optical transmitting set 17 is arranged on, setting is arranged in the first optical receiver 19a
Plate 27 on the first optical receiver 19a be located at the same side, be arranged between optical transmitting set 17 and the first optical receiver 19a in
On portion's bottom wall 25, and/or in the internal side wall 23 that is arranged between optical transmitting set 17 and the first optical receiver 19a.
Fig. 2A schematically show the turbidity in vent gas treatment liquid it is low in the case where vent gas treatment liquid turbidity
Vent gas treatment liquid in the case that detection device and Fig. 2 B schematically show the height of the turbidity in vent gas treatment liquid is muddy
Turbidity detection device, wherein a second optical receiver 19b is shown as being arranged in optical transmitting set 17 and the first optical receiver
In internal side wall 23 between 19a.In Fig. 2A and Fig. 2 B, the direction of arrow represents the light emitted by optical transmitting set 17 in urea
The direction of propagation in aqueous solution 3, and the thickness of arrow represents the intensity of light, and stain 29 represents in aqueous solution of urea 3
Suspended matter, such as dust, fiber or other insoluble impurities.When vent gas treatment liquid turbidity detection device 15 starts, light hair
17 emitting parallel light of emitter and from optical transmitting set 17 emit directional light along straightline propagation.As shown in Figure 2 A.When in storage tank 5
When aqueous solution of urea 3 is limpid or turbidity is lower, in aqueous solution of urea 3 almost without or only a small amount of suspended matter 29, from light
Transmitter 17 emit directional light is along straightline propagation and almost all is received by the first optical receiver 19a, without scattering.
When the turbidity of the aqueous solution of urea 3 in storage tank 5 increases, i.e., there are when larger amount of suspended matter 29 in aqueous solution of urea 3, from light
A part in directional light that transmitter 17 emits is received by the first optical receiver 19a, and another part is then by aqueous solution of urea 3
Suspended matter 29 scatter, scatter light in a part by least one the second optical receiver 19b receive.First optical receiver 19a
With at least one second optical receiver 19b can generate based on its received light intensity signal, such as voltage signal and
Current signal.Scattering due to the suspended matter 29 in aqueous solution of urea 3 to the light emitted from optical transmitting set 17, by the first light-receiving
The signal that device 19a is generated dies down with the increase of the turbidity of aqueous solution of urea 3, by least one the second optical receiver 19b
The signal of generation becomes strong with the increase of the turbidity of aqueous solution of urea 3.
The electronic control unit (ECU) of vehicle can directly control vent gas treatment liquid turbidity detection device 15.For example,
Optical transmitting set 17 and multiple optical receiver 19a, 19b can be electrically coupled to ECU.ECU can operate with activate optical transmitting set 17 with
And receive and come from the multiple optical receiver 19a, the signal of 19b simultaneously determines the muddy of aqueous solution of urea 3 according to the signal
Turbidity.When the turbidity of identified aqueous solution of urea 3 is more than threshold value, ECU sends to driver and indicates in the storage tank 5
The turbidity of aqueous solution of urea 3 is more than the alarm of the threshold value, to remind driver to replace aqueous solution of urea 3 and clean the storage
Tank 5.For example, when at least one second optical receiver 19b generate based on its received light intensity signal (such as electric current
Signal or voltage signal) when being more than threshold value, ECU is sent to driver indicates that the turbidity of aqueous solution of urea 3 in storage tank 5 is more than
The alarm of threshold value.It should be understood that ECU also can use the turbidity that other suitable methods determine aqueous solution of urea 3.Example
Such as, ECU can by by the first optical receiver 19a generate based on its received light intensity signal and at least one the
The second optical receiver of one or more of two optical receiver 19b generate based on its institute received light intensity signal progress
Compare the turbidity to determine aqueous solution of urea 3.
Optionally, vent gas treatment liquid turbidity detection device 15 can also include controller (not shown).The controller can
To be electrically connected with optical transmitting set 17, to activate optical transmitting set 17 as needed.Controller can also with multiple optical receiver 19a,
19b is electrically connected, with receive that multiple optical receiver 19a, 19b generate based on its received light intensity signal, and according to
The signal determines the turbidity of the aqueous solution of urea 3 in storage tank 5.Controller can also for example with the ECU of vehicle, human-computer interaction
The communication such as interface, with indicating for the turbidity of the aqueous solution of urea 3 into driver's offer storage tank 5, and in aqueous solution of urea 3
Turbidity when being more than threshold value, send alarm to driver to remind driver to replace aqueous solution of urea 3 and clean tank 5.It answers
Understand, the controller of vent gas treatment liquid turbidity detection device 15 can also pass through the side similar with electronic control unit
Method determines the turbidity of aqueous solution of urea 3.
Fig. 3 shows the schematic logic diagram of vent gas treatment liquid turbidity detection device operation.At step 31, tail gas
Reason liquid turbidity detection device 15 receives the order from driver or vehicle electrically controlling unit and starts.At step 33, tail gas
The optical transmitting set 17 of reason liquid turbidity detection device 15 is activated with emitting parallel light.In step 35, vent gas treatment liquid turbidity
The controller of detection device 15 receive from optical receiver 19a, 19b generate based on its received light intensity signal,
And the turbidity of the aqueous solution of urea 3 in storage tank 5 is determined according to the signal.If identified turbidity is not above threshold
Value, then vent gas treatment liquid turbidity detection device 15 sends the muddiness for indicating aqueous solution of urea to driver or vehicle electrically controlling unit
Degree is not above the signal of threshold value and exits operation (step 37).If identified turbidity is more than threshold value, vent gas treatment
Liquid turbidity detection device 15 is sent to driver or vehicle electrically controlling unit indicates that the turbidity of the aqueous solution of urea in storage tank is super
It crosses the alarm of threshold value and exits operation (step 39), to remind driver to replace aqueous solution of urea 3 and clean tank 5.
Although vent gas treatment liquid turbidity detection device 15 is made of multiple portions in the accompanying drawings, it should be understood that tail gas
Treatment fluid turbidity detection device 15 can also be formed as an entirety.Although also, multiple second light are shown in the attached drawings
Receiver 19b, it will be appreciated that, a second optical receiver 19b can be only set.In addition, though vent gas treatment liquid is muddy
Degree detection device is described as completing detection backed off after random operation, it should be understood that if identified turbidity is not above threshold
Value, vent gas treatment liquid turbidity detection device can also continuously carry out detection or execute detection at a time interval, with right
The turbidity of aqueous solution of urea in storage tank carries out continuing detection.
The utility model is described in detail in conjunction with specific embodiments above.Obviously, above description and in attached drawing
Shown in embodiment should be construed as illustratively, without constitute limitations of the present invention.For this field skill
For art personnel, various variations or modifications can be carried out to it in the case where not departing from the spirit of the utility model, these changes
Type or modification are all without departing from the scope of the utility model.
Claims (10)
1. the vent gas treatment liquid turbidity detection device (15) that one kind is used for tail gas treatment system of diesel engine (1), which is characterized in that
The vent gas treatment liquid turbidity detection device (15) includes:
For emitting the optical transmitting set (17) of light, the optical transmitting set (17) is source of parallel light；And
For receive from the optical transmitting set (17) emit light and generate based on its received light intensity signal it is more
A optical receiver (19a, 19b)；
The optical transmitting set (17) and the multiple optical receiver (19a, 19b) are arranged in the storage tank (5) of vent gas treatment liquid simultaneously
And it is immersed in the vent gas treatment liquid.
2. vent gas treatment liquid turbidity detection device (15) as described in claim 1, which is characterized in that the optical transmitting set
(17) and the suction of the conveying device (7) of the multiple optical receiver (19a, 19b) neighbouring the tail gas treatment system of diesel engine (1)
The entrance (21) of liquid pipeline (9) is arranged.
3. vent gas treatment liquid turbidity detection device (15) as described in claim 1, which is characterized in that the multiple light-receiving
Device (19a, 19b) includes:
Emit from the optical transmitting set (17) and for receiving along the first optical receiver (19a) of the light of straightline propagation；And
For receiving at least one second optical receiver (19b) for the light for emitting and being scattered from the optical transmitting set (17).
4. vent gas treatment liquid turbidity detection device (15) as claimed in claim 3, which is characterized in that first light-receiving
Device (19a) is arranged relative to each other with the optical transmitting set (17).
5. vent gas treatment liquid turbidity detection device (15) as claimed in claim 4, which is characterized in that the optical transmitting set
(17) it is arranged in the internal side wall (23) of the storage tank (5), first optical receiver (19a) setting is from the storage tank
(5) on the plate (27) that interior bottom wall (25) is holded up.
6. vent gas treatment liquid turbidity detection device (15) as claimed in claim 5, which is characterized in that it is described at least one
Two optical receivers (19b) are arranged in the internal side wall (23) that the optical transmitting set (17) is arranged on, and are arranged in institute
It states and is located at the same side with first optical receiver (19a) on the plate (27) that the first optical receiver (19a) is arranged on,
In the interior bottom wall (25) being arranged between the optical transmitting set (17) and first optical receiver (19a), and/or setting exists
In internal side wall (23) between the optical transmitting set (17) and first optical receiver (19a).
7. vent gas treatment liquid turbidity detection device (15) as described in claim 1, which is characterized in that the optical transmitting set
(17) it is directly controlled by the electronic control unit of vehicle with multiple optical receivers (19a, 19b), the electronic control unit can
Operation comes from the signal of the multiple optical receiver (19a, 19b) and according to institute to activate optical transmitting set (17) and receive
The turbidity that signal determines vent gas treatment liquid is stated, when the turbidity of identified vent gas treatment liquid is more than threshold value, the electronics
Control unit is sent to driver indicates that the turbidity of the vent gas treatment liquid in the storage tank (5) is more than the alarm of the threshold value,
To remind driver to replace vent gas treatment liquid and clean the storage tank (5).
8. vent gas treatment liquid turbidity detection device (15) as described in claim 1, which is characterized in that the turbidity detection
Device (15) further includes for activating optical transmitting set (17) and receiving described from the multiple optical receiver (19a, 19b)
Signal and determined according to the signal vent gas treatment liquid turbidity controller, when the turbidity of identified vent gas treatment liquid
When more than threshold value, the controller is sent to driver indicates that the turbidity of the vent gas treatment liquid in the storage tank (5) is more than institute
The alarm of threshold value is stated, to remind driver to replace vent gas treatment liquid and clean the storage tank (5).
9. vent gas treatment liquid turbidity detection device (15) as described in claim 1, which is characterized in that the vent gas treatment liquid
It is aqueous solution of urea (3).
10. a kind of tail gas treatment system of diesel engine, which is characterized in that the tail gas treatment system of diesel engine includes such as claim
Vent gas treatment liquid turbidity detection device (15) described in any claim in 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821178472.6U CN208594995U (en) | 2018-07-24 | 2018-07-24 | Vent gas treatment liquid turbidity detection device and tail gas treatment system of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821178472.6U CN208594995U (en) | 2018-07-24 | 2018-07-24 | Vent gas treatment liquid turbidity detection device and tail gas treatment system of diesel engine |
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| Publication Number | Publication Date |
|---|---|
| CN208594995U true CN208594995U (en) | 2019-03-12 |
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ID=65603525
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821178472.6U Active CN208594995U (en) | 2018-07-24 | 2018-07-24 | Vent gas treatment liquid turbidity detection device and tail gas treatment system of diesel engine |
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| CN (1) | CN208594995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114648861A (en) * | 2022-03-17 | 2022-06-21 | 潍柴动力股份有限公司 | Urea tank cleaning early warning method, device, system and medium |
-
2018
- 2018-07-24 CN CN201821178472.6U patent/CN208594995U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114648861A (en) * | 2022-03-17 | 2022-06-21 | 潍柴动力股份有限公司 | Urea tank cleaning early warning method, device, system and medium |
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| GR01 | Patent grant |