CN106438036A - Method for cleaning three-way catalytic reactor of automobile - Google Patents
Method for cleaning three-way catalytic reactor of automobile Download PDFInfo
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- CN106438036A CN106438036A CN201510469195.9A CN201510469195A CN106438036A CN 106438036 A CN106438036 A CN 106438036A CN 201510469195 A CN201510469195 A CN 201510469195A CN 106438036 A CN106438036 A CN 106438036A
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- cleaning
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- catalytic reactor
- way catalytic
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Abstract
The invention relates to a method for cleaning a three-way catalytic reactor of an automobile. The method includes the following steps: (1) demounting an oxygen sensor near the three-way catalytic reactor, and exposing an installation hole of the oxygen sensor; (2) inserting a cleaning pipe into the front end of the three-way catalytic reactor via the installation hole of the oxygen sensor, and performing cleaning agent cleaning on the three-way catalytic reactor through a cleaning agent emitted by the tail end of the cleaning pipe; and (3) pulling out the cleaning pipe after cleaning agent cleaning, inserting a steam reduction pipe into the front end of the three-way catalytic reactor via the installation hole of the oxygen sensor, and performing steam reduction on the three-way catalytic reactor through steam emitted by the tail end of the steam reduction pipe. The cleaning method can clean the three-way catalytic reactor without demounting the three-way catalytic reactor, can effectively shorten the working time, and can improve the cleaning efficiency; and through combination of cleaning agent cleaning and high temperature steam reduction the three-way catalytic reactor can effectively restore to a good working state, and the cleaning effect is improved.
Description
Technical field
The invention belongs to Motor Maintenance technical field, it is related to a kind of cleaning of automobile three-way catalysts
The automobile three-way catalysts that method, more particularly, to a kind of cleaning efficiency are high, cleaning performance is good clear
Washing method.
Background technology
Ternary catalyzing unit is mounted in most important outer purifier in automobile exhaust system, it
The harmful gass such as CO, HC and NOx of discharging in vehicle exhaust can be passed through oxidation and go back original work
With being changed into harmless carbon dioxide, water and nitrogen.When the vehicle exhaust of high temperature is filled by purification
When putting, the cleanser in ternary catalyzing unit will strengthen CO, HC and NOxThe activity of three kinds of gases,
It is promoted to carry out a series of oxidation-reduction chemical reaction, wherein CO is oxidized to no at high temperature
Color, nontoxic carbon dioxide, HC compound is oxidized to water (H at high temperature2O) and two
Carbonoxide, and NOxThen it is reduced to nitrogen and oxygen.Therefore, process through ternary catalyzing unit, vapour
Three kinds of harmful gass in tail gas become innocuous gas, and vehicle exhaust is purified.
Existing ternary catalyzing unit in use for some time, its poroid material can contain vapour
Left reactant after debris that tail gas is left and oxidized reduction reaction, if not in time
Cleaning treatment, poroid material can be blocked, thus affecting the normal work of ternary catalyzing unit.
In the cleaning method of existing ternary catalyzing unit, mainly include dismountable and " drop " formula.
Wherein, dismountable cleaning method be ternary catalyzing unit is dismantled in car body after put into cleaning device
It is carried out.Chinese invention patent as Application No. 201210242684.7《A kind of ternary is urged
Change cleaning device and the cleaning method using this device of device》In disclose a kind of cleaning ternary and urge
The method changing device, ternary catalyzing unit disassembling is connected in the outlet of water pump for it, then past
Load clear water in cleaning case, open supersonic generator and water pump, ternary catalyzing unit is carried out with the
One step cleaning, then discharges the water in cleaning case, then rejoins clear water, add abluent,
Open supersonic generator, open water pump, ternary catalyzing unit is carried out.This kind of cleaning side
Although method can more thoroughly clean the spot on the poroid material of ternary catalyzing unit, the method is taken
When laborious, and ternary catalyzing unit and automotive department about may be damaged in unloading process
Part.Meanwhile, whole cleaning process can cause secondary pollution to environment.
The cleaning method of " drop " formula is that tube for transfusion is inserted electromotor rubber air inlet vacuum tube
In, start electromotor input abluent, abluent is divided steam, steam stream by thermal evaporation generating unit
Through ternary catalyzing unit, it is carried out.If Authorization Notice No. is CN 201588699 U
Chinese utility model patent《Hanging-bottle type ternary catalyzing device cleaner》Just adopt " drop " formula
Cleaning method.Described " drop " formula cleaning method exempts to dismantle, and on car body, ternary can be urged
Change device directly to be cleaned.But this kind of cleaning method is time-consuming, and the flow of abluent is wayward,
Easily infringement is produced to engine interior part in cleaning process.Meanwhile, send out in this cleaning process
Motivation need to be in idling mode, therefore consumes fuel, not environmentally.
In view of the above-mentioned technological deficiency of prior art, in the urgent need to developing a kind of new automobile three
The cleaning method of first catalyst converter.
Content of the invention
It is an object of the invention to solve market existing cleaning ternary catalyzing unit dismountable and
The shortcoming of " drop " formula cleaning method, provides a kind of cleaning new method of automobile three-way catalysts,
The cleaning efficiency of this cleaning method is high, cleaning performance is good and environment friendly and pollution-free.
To achieve these goals, the present invention provides following technical scheme：A kind of automobile ternary is urged
Change the cleaning method of device, it is characterized in that, comprise the following steps：
(1) disassemble the oxygen sensor near described ternary catalyzing unit setting, so that described oxygen is passed
The installing hole of sensor exposes；
(2) detergent line is inserted into described three-element catalytic by the installing hole of described oxygen sensor
The front end of device, and the abluent stream being sprayed by described detergent line end is to described three-element catalytic
Device is carried out agent cleaning；
(3) abluent cleaning extracts described detergent line after terminating, then by steam reduction pipeline
It is inserted into the front end of described ternary catalyzing unit by the installing hole of described oxygen sensor, and by described
The original steam of going back that steam reduction line end sprays carries out steam reduction to described ternary catalyzing unit.
Further, wherein, the top of described detergent line connects abluent storage tank, described steaming
The top that vapour reduces pipeline connects steam generator.
Further, wherein, it is connected with negative pressure of vacuum device in automobile exhaust gas outlet end,
And make described negative pressure of vacuum device continuous firing in cleaning reduction process.
Yet further, wherein, the pressure of described abluent stream is 0.4～0.6MPa.
Again further, wherein, the described temperature going back original steam is 152 DEG C.
Additionally, described detergent line end is provided with photographic head.
Compared with the cleaning method of existing automobile three-way catalysts, the automobile ternary of the present invention is urged
The cleaning method changing device has following Advantageous Effects：
1st, the detergent line of conveying abluent and conveying go back the steam reduction pipeline of original steam by oxygen
Sensor mounting hole is inserted into ternary catalyzing unit front end, and carries out at sprinkling to ternary catalyzing unit
Ternary catalyzing unit dismounting need not can be carried out, effectively reduce the working time, carry by reason
High cleaning efficiency.
2nd, abluent cleaning is combined with high-temperature steam reduction, ternary catalyzing unit can be made effective
Revert to good working order, improve cleaning performance.
3rd, detergent line end is provided with photographic head, so can directly observe in ternary catalyzing unit
Overall process is cleaned in portion, can carry out visual visual assessment to cleaning performance.
4th, it is connected with negative pressure of vacuum device in automobile exhaust gas outlet end, processing procedure can be prevented
The vapor of middle generation causes to automobile engine to damage.
5th, can reduce motor vehicle exhaust emission, reduce environmental pollution, fast quick-recovery automobile power and
Save fuel oil.
Brief description
Fig. 1 is the schematic flow sheet of the cleaning method of the automobile three-way catalysts of the present invention.
Specific embodiment
The present invention is further described with reference to the accompanying drawings and examples, and the content of embodiment is not made
It is the restriction to protection scope of the present invention.
Fig. 1 shows the schematic flow sheet of the cleaning method of the automobile three-way catalysts of the present invention.
Referring to Fig. 1, it is not necessary to from car body in the cleaning method of the automobile three-way catalysts of the present invention
The lower ternary catalyzing unit of upper dismounting, but disassemble the oxygen near described ternary catalyzing unit setting first
Sensor.After disassembling described oxygen sensor, the installing hole of described oxygen sensor is made to expose.
Secondly, by one end (end) of detergent line (can be various flexible pipes) by described oxygen
The installing hole of sensor is inserted into the front end of described ternary catalyzing unit.Described detergent line another
End (top) can connect abluent storage tank.Be stored with described abluent storage tank abluent.
So, abluent stream can be sprayed by described detergent line end, thus by the cleaning spraying
Agent stream is carried out agent cleaning to described ternary catalyzing unit.In the present invention, it is preferred to, described
The pressure of abluent stream is 0.4～0.6MPa, in order to carry out more preferably to described ternary catalyzing unit
Cleaning.
Finally, described in extracting from the installing hole of described oxygen sensor after abluent cleaning terminates
Detergent line, then one end (end by steam reduction pipeline (can be various resistant to elevated temperatures software)
End) it is inserted into the front end of described ternary catalyzing unit by the installing hole of described oxygen sensor.Described steaming
The other end (top) that vapour reduces pipeline can connect steam generator.Described steam generator
Go back original steam for producing.So, high temperature can be sprayed by described steam reduction line end
Go back original steam, thus by spray original steam of going back steam is carried out also to described ternary catalyzing unit
Former.In the present invention, it is preferred to, the described temperature going back original steam is 152 DEG C.This temperature
Degree is conducive to carrying out reduction treatment to dirty in ternary catalyzing unit, is unlikely to damage ternary again
Catalyst converter and other parts of automobile.
In the present invention, the steam reduction of original steam is gone back in the detergent line of conveying abluent and conveying
Pipeline is all inserted into ternary catalyzing unit front end by the installing hole of oxygen sensor, and to ternary catalyzing unit
Carry out sprinkling process, ternary catalyzing unit dismounting can need not be carried out, effectively reduce work
Make the time, improve cleaning efficiency.And, abluent cleaning is mutually tied with high-temperature steam reduction
Close, ternary catalyzing unit can be made effectively to revert to good working order, improve cleaning performance.
Additionally, in the present invention, it is preferred to, it is connected with vacuum in automobile exhaust gas outlet end
Negtive-pressure implement, and make described negative pressure of vacuum device continuous firing in cleaning reduction process.So, lead to
Cross described negative pressure of vacuum device and can siphon away the vapor producing in processing procedure, thus preventing from processing
During produce vapor automobile engine is caused damage.
Finally, in the present invention, for making processing procedure visualize, described detergent line end sets
It is equipped with photographic head.So, ternary can directly be observed by described photographic head and outside display
Catalyst converter internal washing overall process, carries out visual visual assessment to cleaning performance.
Cleaning method using the automobile three-way catalysts of the present invention is carried out clearly to ternary catalyzing unit
After washing, it is possible to reduce motor vehicle exhaust emission, the minimum discharge capacity that can reach 20%-30%.With
When, it is possible to reduce environmental pollution, fast quick-recovery automobile power and saving fuel oil.
The above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and
It is not the restriction to embodiments of the present invention.Those of ordinary skill in the art are come
Say, can also make other changes in different forms on the basis of the above description.This
In all of embodiment cannot be exhaustive.Every technical scheme that belongs to is drawn
The obvious change stretched out or change the row still in protection scope of the present invention.
Claims (6)
1. a kind of cleaning method of automobile three-way catalysts, is characterized in that, comprise the following steps：
(1) disassemble the oxygen sensor near described ternary catalyzing unit setting, so that described oxygen is passed
The installing hole of sensor exposes；
(2) detergent line is inserted into described three-element catalytic by the installing hole of described oxygen sensor
The front end of device, and the abluent stream being sprayed by described detergent line end is to described three-element catalytic
Device is carried out agent cleaning；
(3) abluent cleaning extracts described detergent line after terminating, then by steam reduction pipeline
It is inserted into the front end of described ternary catalyzing unit by the installing hole of described oxygen sensor, and by described
The original steam of going back that steam reduction line end sprays carries out steam reduction to described ternary catalyzing unit.
2. the cleaning method of automobile three-way catalysts according to claim 1, is characterized in that, institute
The top stating detergent line connects abluent storage tank, and the top of described steam reduction pipeline connects
Steam generator.
3. the cleaning method of automobile three-way catalysts according to claim 2, is characterized in that,
Automobile exhaust gas outlet end is connected with negative pressure of vacuum device, and makes described negative pressure of vacuum device clear
Wash continuous firing in reduction process.
4. the cleaning method of automobile three-way catalysts according to claim 3, is characterized in that, institute
The pressure stating abluent stream is 0.4～0.6MPa.
5. the cleaning method of automobile three-way catalysts according to claim 4, is characterized in that, institute
State go back original steam temperature be 152 DEG C.
6. the cleaning method of automobile three-way catalysts according to claim 5, is characterized in that, institute
State detergent line end and be additionally provided with photographic head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510469195.9A CN106438036A (en) | 2015-08-04 | 2015-08-04 | Method for cleaning three-way catalytic reactor of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510469195.9A CN106438036A (en) | 2015-08-04 | 2015-08-04 | Method for cleaning three-way catalytic reactor of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106438036A true CN106438036A (en) | 2017-02-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510469195.9A Pending CN106438036A (en) | 2015-08-04 | 2015-08-04 | Method for cleaning three-way catalytic reactor of automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499512A (en) * | 2016-10-19 | 2017-03-15 | 威海顺畅环保科技有限公司 | A kind of for three-element catalytic carrier clean and reducing/regenerating method |
Citations (6)
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|---|---|---|---|---|
| US5425183A (en) * | 1991-12-04 | 1995-06-20 | Vacon Technologies, Inc. | Method and apparatus for producing and delivering solvent vapor to vessel interiors for treating residue deposits and coatings |
| CN1795990A (en) * | 2004-12-23 | 2006-07-05 | 倪初宁 | Method for cleaning and maintaining ternary catalyzing unit of gasoline motorcar |
| CN200952427Y (en) * | 2006-09-05 | 2007-09-26 | 石家庄胜嘉杰锐特汽车用品科技有限公司 | Vehicle three-effect catalytic converter non-dismounting cleaning machine |
| CN201588699U (en) * | 2009-12-23 | 2010-09-22 | 上海碧远实业有限公司 | Hanging-bottle type ternary catalyzing device cleaner |
| CN103506341A (en) * | 2012-06-19 | 2014-01-15 | 3M创新有限公司 | Method used for cleaning automobile three-way catalytic converter |
| CN103670706A (en) * | 2013-11-14 | 2014-03-26 | 宁波行泰商贸有限公司 | Cleaning method for three-way catalyst of automobile |
-
2015
- 2015-08-04 CN CN201510469195.9A patent/CN106438036A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5425183A (en) * | 1991-12-04 | 1995-06-20 | Vacon Technologies, Inc. | Method and apparatus for producing and delivering solvent vapor to vessel interiors for treating residue deposits and coatings |
| CN1795990A (en) * | 2004-12-23 | 2006-07-05 | 倪初宁 | Method for cleaning and maintaining ternary catalyzing unit of gasoline motorcar |
| CN200952427Y (en) * | 2006-09-05 | 2007-09-26 | 石家庄胜嘉杰锐特汽车用品科技有限公司 | Vehicle three-effect catalytic converter non-dismounting cleaning machine |
| CN201588699U (en) * | 2009-12-23 | 2010-09-22 | 上海碧远实业有限公司 | Hanging-bottle type ternary catalyzing device cleaner |
| CN103506341A (en) * | 2012-06-19 | 2014-01-15 | 3M创新有限公司 | Method used for cleaning automobile three-way catalytic converter |
| CN103670706A (en) * | 2013-11-14 | 2014-03-26 | 宁波行泰商贸有限公司 | Cleaning method for three-way catalyst of automobile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106499512A (en) * | 2016-10-19 | 2017-03-15 | 威海顺畅环保科技有限公司 | A kind of for three-element catalytic carrier clean and reducing/regenerating method |
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Application publication date: 20170222 |
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