CN206816362U - A kind of motor-vehicle tail-gas after-treatment system circulation cleaning device - Google Patents
A kind of motor-vehicle tail-gas after-treatment system circulation cleaning device Download PDFInfo
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- CN206816362U CN206816362U CN201720648203.0U CN201720648203U CN206816362U CN 206816362 U CN206816362 U CN 206816362U CN 201720648203 U CN201720648203 U CN 201720648203U CN 206816362 U CN206816362 U CN 206816362U
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Abstract
The utility model discloses a kind of motor-vehicle tail-gas after-treatment system circulation cleaning device, including liquid supply box, liquid-return box, the liquid supply box is connected by fluid filling pump with the bottom of after-treatment system, the top of the after-treatment system is connected by circulating line with the bottom of after-treatment system, the circulating line is provided with grug feeding jar, circulating pump, intelligent temperature control system, the circulating line is also connected by the first threeway with the liquid-return box, and valve is equipped with the pipeline being connected with first threeway；Liquid level detector is provided with the after-treatment system.The utility model apparatus structure is simple, conveniently operation, cleaning agent circulating reflux is abundant, saving water resource, automatically control, corresponding cleaning agent is coordinated to carry out high temperature circulation cleaning, after-treatment system inner surface carbon distribution and complex compound can be removed, after-treatment system is recovered catalytic efficiency, effectively realizes the reparative regeneration of exhaust gas aftertreatment system.
Description
Technical field
The utility model belongs to the mechanical washing device of motor-vehicle tail-gas after-treatment system, in particular it relates to a kind of motor-driven
Tail gas after-treatment system circulation cleaning device.
Background technology
Exhaust gas aftertreatment system is mainly made up of catalyst converter, urea box, dosing unit etc., and technical principle is using also
Nitrous oxides selectivity reduction is generated nitrogen and water by former agent in the presence of catalyst in oxygen-enriched environment.Specifically,
The carbon monoxide that Engine Exhaust Emission goes out（CO）And hydrocarbon（HC）It is the product of no safe combustion, works as lack of air
When will produce.Oxynitrides（NOx）Generation and the ignition temperature and oxygen content of engine have close relationship, temperature is got over
Height, oxygen content is bigger, is more also easy to produce.At these three ternary catalyzing units of pernicious gas composition through one of exhaust gas aftertreatment system
Manage, the catalyst in interior carrier occurs chemical reaction and is converted into harmless vapor, carbon dioxide and nitrogen, said process
Referred to as " three-element catalytic ".Ternary catalyzing unit can reach the 90% of its total amount to the clearance rate of three kinds of major pollutants of automobile.
Anti-knock agent used in fuel oil for vehicles can not only cause greatly pollution and damage more containing lead, manganese to environment and human body
Evil, but also on the lambda sensor and the active surface of catalyst that can be deposited in ternary catalyzing unit, make lambda sensor " in
It can also be greatly reduced the purification efficiency of ternary catalyzing unit while poison ", until damage.There is experiment to show, one case doped fuel
A new clothes ternary catalyzing unit can be made entirely ineffective.The fuel oil of other high sulfur content also results in catalyzed conversion preheating time and prolonged
The temperature that long, catalyst works improves and catalyst transformation efficiency reduces.
Solving ternary catalyzing unit Problem of Failure, usual way is the ternary catalyzing unit more renewed or carries out disassembly, cleaning,
But cost is higher, and may damage in unloading process ternary catalyzing unit and its around automobile component, it is while whole clear
Washed journey can cause secondary pollution to environment.
In addition, there is a kind of ternary catalyzing unit cleaning machine of drip in the prior art, it can be to the ternary on car body
Catalyst converter is directly cleaned, but this cleaning method is time-consuming, and the flow of cleaning agent is difficult to control, in cleaning process, it is necessary to artificial
Observation, operation, take time and effort, and easily produce infringement to engine interior part.
The content of the invention
The utility model is in view of the shortcomings of the prior art, there is provided a kind of motor-vehicle tail-gas after-treatment system wash cycles dress
Put, by automatic cyclic cleaning, high pressure washing, can effectively extend the service life of after-treatment system.
Above-mentioned purpose of the present utility model is achieved by the following technical programs.
A kind of motor-vehicle tail-gas after-treatment system circulation cleaning device, including liquid supply box, liquid-return box, the liquid supply box pass through
Fluid filling pump is connected with the bottom of after-treatment system, the bottom that the top of the after-treatment system passes through circulating line and after-treatment system
Portion is connected, and the circulating line is provided with grug feeding jar, circulating pump, intelligent temperature control system, and the circulating line also passes through the one or three
It is logical to be connected with the liquid-return box, it is equipped with valve on the pipeline being connected with first threeway；It is provided with the after-treatment system
Liquid level detector, the liquid level detector, circulating pump, fluid filling pump, intelligent temperature control system, valve and control system are electrically connected.
Liquid supply box clear water and grug feeding jar cleaning agent are pumped into the bottom of after-treatment system by the utility model respectively, when liquid level is examined
Survey device and detect water level, circulate pump work, cleaning agent does circulation loop cleaning in circulating line, while passes through intelligent temperature control system
Water temperature in system control circulating line, after cleaning up, makes cleaning waste liquid flow into liquid-return box.The control system can use existing skill
Art, and liquid level detector, circulating pump, fluid filling pump, intelligent temperature control system, valve are integrated by conventional method and are controlled in the control
System, preset or adjust following parameter：The critical level value of liquid level detector, the warm temperature and program of intelligent temperature control system,
The size and switch that circulating pump, fluid filling pump, valve pass through fluid flow.The intelligent temperature control system can also use existing, beginning
When liquid in circulating line is heated, when water temperature reaches preset temperature in circulating line, stop heating, be incubated, and in fact
When monitoring temperature, when temperature is less than preset temperature, then heated, until circulation loop cleaning finish.
Preferably, the valve is magnetic valve.
Preferably, the bottom of the liquid-return box is connected by a reflux line with the top of the after-treatment system.
Preferably, the reflux line is provided with a high pressure cleaning pump, the high pressure cleaning pump and control system electricity
Even.Waste liquid is made full use of by reflux line, the cleaning agent high pressure in liquid-return box is squeezed into the top of after-treatment system, rinses and carries
Body.
Preferably, the grug feeding jar, circulating pump, intelligent temperature control system are described to be successively set on the circulating line
First threeway is between circulating pump and intelligent temperature control system.
Observed for convenience of the flushing situation to wash cycles each period, flushing direction, it is preferable that the circulating pump
And first be provided with observation window between threeway.
Preferably, the intelligent temperature control system includes electric heater and register.
Preferably, the second threeway is additionally provided between the intelligent temperature control system, after-treatment system bottom, the fluid filling pump leads to
Second threeway is crossed with after-treatment system bottom to be connected.
Preferably, the control system is provided with timer.After the timer reaches preset time for wash cycles,
Wash cycles process is completed, the cleaning agent of control system control circulating line squeezes into liquid-return box.It is highly preferred that the control system
System also carries display screen and excessively stream, overvoltage, overtemperature prote warning device.
Preferably, the control system includes single-chip microcomputer, control display panel and a variety of physics ends for data transfer
Mouthful.
Preferably, the circulating line is additionally provided with a connecting tube in parallel with circulating pump, the first threeway, the connecting tube
On also be provided with valve.
Preferably to carry out the reduction step of after-treatment system, it is preferable that the after-treatment system bottom is also associated with drying
Equipment for drying.
Preferably, the after-treatment system is ternary catalyzing unit, diesel particulate filter（DPF）, SCR
System（SCR）, gas recirculation system（EGP）, oxidation catalytic converter（DOC）Or grain catcher（POC）.
Compared with prior art, the utility model beneficial effect is：Provide a kind of motor-vehicle tail-gas after-treatment system
Circulation cleaning device, coordinate corresponding cleaning agent to carry out high temperature circulation cleaning, can partly remove a variety of after-treatment system inner surfaces
Carbon distribution and complex compound, after-treatment system is set to recover catalytic efficiency.Its catalysis, this practicality are reduced for further cleaning
The new high pressure reflow pipeline that have also been devised carries out secondary flushing, rinses reduction catalystses carrier.The utility model is simple in construction, conveniently
Operation, cleaning agent circulating reflux is abundant, saving water resource, automatically controls, and effectively realizes the reparative regeneration of exhaust gas aftertreatment system.
Brief description of the drawings
Fig. 1 is a kind of pipeline structure schematic diagram of motor-vehicle tail-gas after-treatment system circulation cleaning device of embodiment 1.
Fig. 2 is a kind of pipeline structure schematic diagram of motor-vehicle tail-gas after-treatment system circulation cleaning device of embodiment 2.
In figure：1st, after-treatment system；2nd, liquid supply box；201st, fluid filling pump；3rd, liquid-return box；301st, reflux line；302nd, high pressure
Cleaning pump；4th, circulating line；401st, grug feeding jar；402nd, circulating pump；403rd, intelligent temperature control system；404th, the first threeway；405th,
Two threeways；406th, observation window；5th, valve；6th, connecting tube.
Embodiment
Clear, complete description is carried out to the technical scheme of various embodiments of the utility model below with reference to accompanying drawing, it is clear that
Described embodiment is only part of the embodiment of the present utility model, rather than whole embodiments.It is new based on this practicality
The embodiment of type, those of ordinary skill in the art's all other implementation resulting on the premise of creative work is not made
Example, belongs to the scope that the utility model is protected.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
The utility model is described in further detail below by specific examples of the implementation and with reference to accompanying drawing.
Embodiment 1
As shown in figure 1, a kind of motor-vehicle tail-gas after-treatment system circulation cleaning device, post-processes system described in the present embodiment
System 1 is specially automobile three-way catalysts, and liquid level detector is provided with after-treatment system 1.The circulation cleaning device includes feed flow
Case 2, liquid-return box 3, the liquid supply box 2 are connected by fluid filling pump 201 with the bottom of after-treatment system 1, the after-treatment system 1
Top is connected by circulating line 4 with the bottom of after-treatment system 1, on the circulating line 4 along the flow direction of circulation fluid according to
Secondary to be provided with grug feeding jar 401, circulating pump 402, intelligent temperature control system 403, the circulating line 4 also passes through the first threeway 404 and institute
State liquid-return box 3 to be connected, first threeway 404 is between circulating pump 402 and intelligent temperature control system 403, with the described 1st
Valve 5 is equipped with logical 404 connected pipeline, the valve 5 is magnetic valve.
The bottom of the liquid-return box 3 is connected by a reflux line 301 with the top of the after-treatment system 1, described time
Flow tube road 301 is provided with a high pressure cleaning pump 302.The liquid level detector, circulating pump 402, fluid filling pump 201, high pressure cleaning pump
302nd, intelligent temperature control system 403, valve 5 are electrically connected with control system.The control system is provided with timer.
The course of work of the present utility model is：The clear water of liquid supply box 2 is pumped into the bottom of after-treatment system 1 by fluid filling pump 201, closed
The valve 5 closed on the pipeline of liquid-return box 3, the cleaning agent of grug feeding jar 401 are pumped into the bottom of after-treatment system 1 by circulating pump 402, work as liquid level
Detector closes the valve 5 in addition to circulating line 4 on all pipelines after detecting water level, and circulating pump 402 works, and cleaning agent exists
Circulation loop cleaning is done in circulating line 4, circulation fluid enters from the bottom of after-treatment system 1, top outflow；Pass through intelligent control simultaneously
Warm system 403 controls water temperature in circulating line 4, carries out high temperature circulation cleaning, is completed when timer, closes intelligent temperature control system
The valve 5 united on 403 pipelines, the valve 5 on the pipeline of liquid-return box 3 is opened, cleaning waste liquid is flowed into liquid-return box 3；The utility model
Waste liquid is also made full use of by reflux line 301, after the cleaning agent in liquid-return box 3 is squeezed into by the high pressure of high pressure cleaning pump 302
The top of processing system 1, flush vehicle, more fully clean after-treatment system 1；All steps are controlled automatically by control system
System, control system integrated using prior art, before use, passing through control system preset timer time, liquid level detector
Critical level value, the warm temperature and program of intelligent temperature control system 403, and circulating pump 402, fluid filling pump 201, valve 5 lead to
Cross the size and switch of fluid flow.The control system is also with display screen and excessively stream, overvoltage, overtemperature prote alarm dress
Put, more security.
Embodiment 2
As shown in Fig. 2 the present embodiment and the difference of embodiment 1 are, the threeway 404 of circulating pump 402 and first
Between be provided with observation window 406.The intelligent temperature control system 403 includes electric heater and the temperature adjustment being sequentially located on circulating line 4
Device.The second threeway 405 is additionally provided between the intelligent temperature control system 403, the bottom of after-treatment system 1, the fluid filling pump 201 is logical
Second threeway 405 is crossed with the bottom of after-treatment system 1 to be connected.It is described preferably to carry out the reduction step of after-treatment system 1
The bottom of after-treatment system 1 is also associated with drying unit.
The circulating line 4 of the present embodiment also increases by one and circulating pump 402, observation window 406, the first threeway 404, valve 5
Connecting tube 6 in parallel, valve 5 also is provided with connecting tube 6.When carrying out circulation loop cleaning step, the valve in closing connecting tube 6
Door 5, cleaning agent is pumped out from the top of after-treatment system 1, be pumped into again by the bottom of after-treatment system 1 along circulating line 4；It is high when completing
After warm wash cycles step, valve 5 all on circulating line 4 is closed, changes the direction of circulating pump 402 and opens connecting tube 6
On valve 5, cleaning waste liquid is pumped into liquid-return box 3 through connecting tube 6 and reclaim.
The utility model is simple in construction, conveniently operation, and cleaning agent circulating reflux is abundant, saving water resource, automatically controls, and has
Effect realizes the reparative regeneration of exhaust gas aftertreatment system.
Finally it should be noted that：Above example is only to illustrate the technical solution of the utility model, rather than its limitations；
Although the utility model is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：
It can still modify to the technical scheme described in previous embodiment, either to which part or all technical characteristic
Carry out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from the utility model embodiment
Technical scheme.
Claims (10)
1. a kind of motor-vehicle tail-gas after-treatment system circulation cleaning device, it is characterised in that described including liquid supply box, liquid-return box
Liquid supply box is connected by fluid filling pump with the bottom of after-treatment system, and the top of the after-treatment system passes through circulating line and rear place
The bottom of reason system is connected, and the circulating line is provided with grug feeding jar, circulating pump, intelligent temperature control system, and the circulating line is also
It is connected by the first threeway with the liquid-return box, valve is equipped with the pipeline being connected with first threeway；The post processing
Liquid level detector, the liquid level detector, circulating pump, fluid filling pump, intelligent temperature control system, valve and control system are provided with system
It is electrically connected.
2. motor-vehicle tail-gas after-treatment system circulation cleaning device according to claim 1, it is characterised in that described time liquid
The bottom of case is connected by a reflux line with the top of the after-treatment system.
3. motor-vehicle tail-gas after-treatment system circulation cleaning device according to claim 2, it is characterised in that the backflow
Pipeline is provided with a high pressure cleaning pump, and the high pressure cleaning pump is electrically connected with the control system.
4. the motor-vehicle tail-gas after-treatment system circulation cleaning device according to any one of claim 1 ~ 3, it is characterised in that
The grug feeding jar, circulating pump, intelligent temperature control system is are successively set on the circulating line, and first threeway is positioned at circulation
Between pump and intelligent temperature control system.
5. motor-vehicle tail-gas after-treatment system circulation cleaning device according to claim 4, it is characterised in that the circulation
Observation window is provided between pump and the first threeway.
6. motor-vehicle tail-gas after-treatment system circulation cleaning device according to claim 4, it is characterised in that the intelligence
Temperature-controlling system includes electric heater and register.
7. motor-vehicle tail-gas after-treatment system circulation cleaning device according to claim 4, it is characterised in that the intelligence
The second threeway is additionally provided between temperature-controlling system, after-treatment system bottom, the fluid filling pump passes through second threeway and post processing
System bottom is connected.
8. motor-vehicle tail-gas after-treatment system circulation cleaning device according to claim 1, it is characterised in that the control
System includes single-chip microcomputer, control display panel and a variety of physical ports for data transfer.
9. motor-vehicle tail-gas after-treatment system circulation cleaning device according to claim 1, it is characterised in that the circulation
Pipeline is additionally provided with a connecting tube in parallel with circulating pump, the first threeway, and valve also is provided with the connecting tube.
10. motor-vehicle tail-gas after-treatment system circulation cleaning device according to claim 1, it is characterised in that after described
Processing system is that ternary catalyzing unit, diesel particulate filter, selective catalytic reduction system operating, gas recirculation system, oxidation are urged
Change converter or grain catcher.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720648203.0U CN206816362U (en) | 2017-06-06 | 2017-06-06 | A kind of motor-vehicle tail-gas after-treatment system circulation cleaning device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720648203.0U CN206816362U (en) | 2017-06-06 | 2017-06-06 | A kind of motor-vehicle tail-gas after-treatment system circulation cleaning device |
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| CN206816362U true CN206816362U (en) | 2017-12-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661795A (en) * | 2018-08-08 | 2018-10-16 | 山西百达电子科技有限公司 | A kind of cleaning device of diesel vehicle preprocessor |
-
2017
- 2017-06-06 CN CN201720648203.0U patent/CN206816362U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661795A (en) * | 2018-08-08 | 2018-10-16 | 山西百达电子科技有限公司 | A kind of cleaning device of diesel vehicle preprocessor |
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