CN103291418A - Replaceable motor vehicle exhaust particulate removing system - Google Patents
Replaceable motor vehicle exhaust particulate removing system Download PDFInfo
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- CN103291418A CN103291418A CN 201310048508 CN201310048508A CN103291418A CN 103291418 A CN103291418 A CN 103291418A CN 201310048508 CN201310048508 CN 201310048508 CN 201310048508 A CN201310048508 A CN 201310048508A CN 103291418 A CN103291418 A CN 103291418A
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- filter
- particulate matter
- safety valve
- exhaust
- motor
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Abstract
The invention relates to a replaceable motor vehicle exhaust particulate removing system which comprises an exhaust inlet, an exhaust emptying port, a particulate trap housing, a filtering body, a differential pressure sensor, a by-pass pipe and a safety valve, wherein the particulate trap housing is arranged between the exhaust inlet and the exhaust emptying port; the filtering body is arranged in the particulate trap housing, and used for trapping particulates; the differential pressure sensor is arranged between the exhaust inlet and the exhaust emptying port, and used for measuring filtering pressure drop, namely exhaust back pressure, of the filtering body; the by-pass pipe is arranged between the exhaust inlet and the exhaust emptying port; the safety valve is arranged in the by-pass pipe, and used for opening and closing the by-pass pipe; and when the exhaust back pressure is greater than a first preset threshold and the preset time is reached, the safety valve is opened, so that exhaust is discharged into an atmosphere directly by the by-pass pipe. The system removes the particulates, ensures the reliable operation of an engine, and is an effective measure for coping with the motor vehicle exhaust particulate discharging pollution at present.
Description
Technical field
The invention belongs to engine exhaust post-processing technology field, be specifically related to a kind of removable motor-vehicle tail-gas particulate matter removing system.
Background technique
At present, the pellet problem is on the rise in the atmosphere, and the particulate matter of studying carefully its source vehicular emission is one of its main source.With regard to the granular material discharged post-processing technology of current mobility tail gas, grain catcher (DPF) is an effective reduction of discharging measure, this technology can effectively catch the particle more than 90% in the exhaust, being the most direct, the effective method of present purifying engine particulate matter, also is the particulate matter emission-reduction technology that is most widely used in the world.DPF is installed on the engine exhaust pipe, and when DPF was passed through in exhaust, particulate matter was filtered by filter core (filter) and catches.Along with the growth of operating time, the particulate matter of filter inner accumulated increases, and with making the pressure drop before and after the DPF raise, causes the engine exhaust back pressure to rise, and influences Security, power character and the Economy of motor.The removing process of deposited particles in the filter of being deposited on is called the regeneration of DPF.At present, the ultimate challenge that the application of DPF faces is exactly its regeneration problem, both at home and abroad for the regeneration techniques of the DPF progress of making a breakthrough property not yet.If avoid the regeneration problem of DPF on Motor Vehicle, and DPF is made dismountable structure, be elevated to certain value when filtering pressure drop, can the filter of DPF be changed; Clean filter can be responsible for providing by specialized agency, and is responsible for the filter after changing is collected, and focuses on the appointed place then filter is concentrated regeneration, recycles; In the granular material discharged problem that has solved the automobile generation, solve the regeneration problem of DPF, avoided on every Motor Vehicle, all disposing the dpf regeneration system, reduced the manufacture cost of automobile particulate matter removing system.
Summary of the invention
The purpose of this invention is to provide a kind of simple in structure, effective, safety, can regularly replace the motor-vehicle tail-gas particulate matter removing system of filter core.
The object of the present invention is achieved like this: motor exhaust enters the grain catcher housing, realizes the trap filter to particulate matter within it on portion's filter; Directly enter atmosphere through the tail gas after filtering; Offer pressure in the import and export of grain catcher housing and survey mouth, monitored the filtration pressure drop (exhaust back pressure) of filter in real time by differential pressure pickup, and pressure drop data is delivered on the Auto Instrument desk shows, in case exhaust back pressure is greater than about 80% of limit value, the pressure drop tutorial light that then glimmers reminds the driver to need filter is changed; In case exhaust back pressure is greater than limit value, then safety valve is opened (staying open state) always, through bypass tube motor exhaust is directly entered atmosphere, prevents power output and the Economy of too high pressure drop affects motor; Safety valve is provided with position transducer, the opening and closing information of safety valve is delivered on the Auto Instrument desk show; In case safety valve is opened, then with sound alarm prompting driver filter is changed; The grain catcher housing is demountable structure, opens the dismounting mouth and can change filter, then safety valve is reset to closed condition, again the tail gas filtering body is carried out trap filter to particulate matter, realizes that particulate matter reduces discharging.
According to an aspect of the present invention, provide a kind of removable motor-vehicle tail-gas particulate matter removing system to comprise: gas inlet; The tail gas evacuation port; The grain catcher housing is arranged between gas inlet and the tail gas evacuation port; Filter is arranged in the grain catcher housing for trap particulate matter; Differential pressure pickup is arranged in the filtration pressure drop that is used for measuring described filter between gas inlet and the tail gas evacuation port, i.e. exhaust back pressure; Bypass tube is arranged between gas inlet and the tail gas evacuation port; And safety valve, be arranged in the bypass tube for the opening and closing bypass tube; Wherein when described exhaust back pressure reaches the scheduled time greater than first predetermined threshold, thereby described safety valve is opened and via bypass tube tail gas is directly entered in the atmosphere.
According to a further aspect in the invention, filter in the described grain catcher housing is wall-flow honeycomb ceramic filter, material is selected from the wall-flow honeycomb ceramic filter of steinheilite or silicon carbide, physical dimension is: diameter 50mm～300mm, length 80mm～305mm, several 8～93 hole/square centimeters of hole order.
According to a further aspect in the invention, filter is installed in the housing, in the front and back of filter the O RunddichtringO is installed also, and the material of seal ring is resistant to elevated temperatures ceramic fiber.
According to a further aspect in the invention, described safety valve is high temperature resistant Direct spring loaded safety valve, and the heatproof of valve seat can reach 800 ℃, and can be by manually opened and close.
According to a further aspect in the invention, except described safety valve position (opening and closing) information be delivered to show on the Auto Instrument desk, the endurance of can also the record security opening of valves and closing, and the number of times of changing filter are in order to carry out the motor vehicle emission condition monitoring.The pressure reduction display device, the exhaust back pressure that differential pressure pickup is measured shows; Wherein when described exhaust back pressure during greater than second predetermined threshold described pressure reduction display device glimmer always, and when described exhaust back pressure during greater than first predetermined threshold, described system sends warning, wherein said second predetermined threshold is 80% of first predetermined threshold.Described first predetermined threshold is defined as 5～20kPa and the described scheduled time is 10 seconds.
System of the present invention has following beneficial effect:
● system architecture is simple, effective, and it is low to install cost additional.System does not install vehicle-mounted regenerative system additional, has reduced the installation cost of system, can effectively remove particulate matter simultaneously, satisfies the demand that particulate matter reduces discharging.
● system uses safety, and user cost is low.System's trap particulate matter (exhaust rising) acquires a certain degree (limit value about 80%), and system can remind the driver that needs are changed filter; When the filtration pressure drop reached limit value, safety valve was opened and is carried out the bypass exhaust, prevented from influencing power output and the fuel economy of motor, had guaranteed the safe handling of automobile.In addition, the not additional vehicle-mounted regenerative system of system has been saved filter regeneration and has been used fuel oil, has reduced user cost.
● system has the emission monitoring function.The automatic record security valve of system is opened the time of carrying out the bypass exhaust; In case carry out the bypass exhaust, then the particulate matter of engine emission can sharply increase.Simultaneity factor can the alarm driver should be changed filter immediately, also can record the time of bypass exhaust simultaneously, carries out emission monitoring.Can carry out the automobile of bypass exhaust as required to opening the safety-valve for a long time, adopt punitive measures to a certain degree.
● filter is replaceable, easy accessibility.Usually grain catcher all is sealed construction, is not easy to the filter of its inside is changed, if will change and need change whole catcher (comprising housing), causes great waste.Grain catcher housing of the present invention is demountable structure, opens the dismounting mouth and can change easy accessibility to filter.
Description of drawings
By understanding embodiment best with reference to following description with for the accompanying drawing that each embodiment is shown.In the accompanying drawings:
Fig. 1 is the structural representation according to the motor-vehicle tail-gas particulate matter removing system of the embodiment of the invention.
Embodiment
Below, one or more aspects that embodiments of the present invention will be described by referring to the drawings wherein generally refer to components identical with identical reference mark in whole accompanying drawing.In the following description, for the purpose of explaining, many specific details have been set forth so that the thorough understanding to one or more aspects of the embodiment of the invention to be provided.Yet, we can say for a person skilled in the art it is evident that, can utilize these specific detail of less degree to carry out one or more aspects of the embodiment of the invention.
In addition, though come special characteristic or the aspect of disclosed embodiment with regard to the only mode of execution in some mode of executions, such feature or aspect can be in conjunction with may being one or more further features or the aspect of other mode of execution expectation and favourable for any given or application-specific.
Referring to Fig. 1, show a kind of removable motor-vehicle tail-gas particulate matter removing system, it comprises: gas inlet 1, tail gas evacuation port 5, grain catcher housing 2 and filter 3.Grain catcher housing 2 is arranged between gas inlet 1 and the tail gas evacuation port 5.Filter 3 is arranged in and is used for trap particulate matter in the grain catcher housing 2.Described motor-vehicle tail-gas particulate matter removing system further comprises: differential pressure pickup 7 is arranged in the filtration pressure drop that is used for measuring described filter (3) between gas inlet 1 and the tail gas evacuation port 5, i.e. exhaust back pressure; Bypass tube 11 is arranged between gas inlet 1 and the tail gas evacuation port 5; And safety valve 10, be arranged in the bypass tube 11 for opening and closing bypass tube 11; Wherein when described exhaust back pressure reaches the scheduled time greater than first predetermined threshold, thereby described safety valve 10 is opened via bypass tube 11 tail gas is directly entered in the atmosphere.
In addition, described motor-vehicle tail-gas particulate matter removing system can further include: safety valve position transducer 12, the opening and closing state of sensing safety valve; And safety valve position information and endurance display device 13, show the opening and closing state of safety valve and record security opening of valves and endurance of closing respectively.This system may further include: filter is changed time and number of times register 14, replacing time and the number of times of record filtering body.In addition, described motor-vehicle tail-gas particulate matter removing system can further include also and comprises: pressure reduction display device 9, the exhaust back pressure that differential pressure pickup 7 is measured shows.In a preferred embodiment, as shown in the figure, pressure reduction display device 9, safety valve position information and endurance display device 13 and filter are changed the time and number of times register 14 can be included in the Auto Instrument desk.Certainly, they also can be integrated into an independent device to realize identical functions.
Next, continue to explain with reference to figure 1 working principle of motor-vehicle tail-gas particulate matter removing of the present invention system.Realize the captures of particles in the filter 3 of engine exhaust by gas inlet 1 inflow grain catcher housing 2, enter atmosphere through the motor exhaust that filters by tail gas evacuation port 5; The work pressure drop of filter 3 is measured by differential pressure pickup 7, and signal is passed to Auto Instrument desk 8, is shown by pressure reduction display device 9, and the driver monitors the work pressure drop of catcher in real time; In case catcher work pressure drop is greater than limiting about 80% of voltage drop value, then pressure reduction display device 9 glimmers always and reminds the driver to change filter; In case catcher work pressure drop is greater than limit value, then safety valve 10 is opened, and bypass tube 11 is introduced in exhaust exhaust is directly entered atmosphere from the tail gas evacuation port, and simultaneity factor can the alarm driver should be changed filter immediately; Safety valve position transducer 12 is passed to Auto Instrument desk 8 with the opening and closing information of safety valve, show the opening and closing state of safety valves by safety valve position information and endurance display device 13, and integration record security opening of valves and endurance of closing respectively; The inside that grain catcher housing 2 was installed and be sealed in to filter 3 by O RunddichtringO 4, opening housing can change filter 3 for detachable mouthful 6, filter 3 is changed the back and manually the position of safety valve 10 is transferred to closed condition, this moment, system was automatically with the endurance zero clearing that shows on safety valve position information and the endurance display device 13, and change replacing time and the number of times of time and number of times register 14 record filtering bodies by filter, in order to the discharging of motor is monitored.
Diesel-powered car with a discharge capacity 2.0L is example below, to the requirement of each parts of system is:
The boundary dimension diameter 50mm～300mm of filter is preferably φ 144mm; Length 80mm～305mm is preferably 152mm; Volume is 2.5L, and filtering body opening order number is 32 hole/square centimeters, and the cell walls face thickness is 0.3mm, and the specific surface area of filter is 1.8m2/L.
The filter material is preferably steinheilite or silicon carbide and other ceramic honey comb material.
The internal diameter of grain catcher housing is 56mm～306mm, is preferably 158mm; O RunddichtringO cross-sectional dimension is 8mm～50mm, is preferably 15mm.
After the filter installation, safety valve is in closed condition, and the safety valve position is shown as at Auto Instrument desk and closes, and the endurance of closing is shown as 0; Gather engine rotational speed signal, in case engine speed also continues more than 10 seconds (being engine ignition) greater than 600 rev/mins, the endurance that safety valve cuts out is when beginning integrating meter; In case engine speed is less than 600 rev/mins and lasting more than 10 seconds (being engine misses), the endurance that safety valve cuts out is when stopping integrating meter.
The pressure drop limit value of filter is decided to be 5～20kPa, is preferably 10kPa.
In case the rotating speed of motor is in 1200～2500 rev/mins of scopes, the pressure drop of filter is greater than 8kPa, and continues more than 10 seconds, and then the pressure reduction display device glimmers always and reminds the driver to change filter.
In case the rotating speed of motor is in 1200～2500 rev/mins of scopes, the pressure drop of filter is greater than 10kPa, and continue more than 10 seconds, then safety valve is opened, bypass tube is introduced in exhaust exhaust is directly entered atmosphere from the tail gas evacuation port, simultaneity factor can the alarm driver should be changed filter immediately.
In case safety valve is in opening state, and motor is in fired state, when then safety valve endurance of opening begins integrating meter, in order to recording the cumulative time that automobile is in the discharging of particulate matter high concentration, for the engine emission monitoring for referencial use.
Normal, in case glimmering always, the pressure reduction display device during prompting changing filter, should in time change filter.Open the detachable mouthful of grain catcher housing, will pack in the housing through the clean filter of regenerating; The filter that will capture particulate matter is simultaneously delivered to the regeneration place of appointment and is concentrated regeneration, makes filter recycle.
If automobile is in safety valve opening state operation (automobile is in the discharging of particulate matter high concentration) for a long time, then to take certain punitive measures, the high concentration discharging of restricting vehicle particulate matter.
Need manual position with safety valve to transfer to closed condition after filter is changed, this moment, system carried out zero clearing with the safety valve unlatching endurance that shows, and replacing time and the number of times of record filtering body.
The place that automobile is changed filter can be the present places that become the automobile services network such as oil fuel filling station, each 4S service shop of automobile, each maintenance store, vehicle administration office; The place of filter regeneration can described filter change the concentrated area, place near set up an office, regularly to each replacing filter of particulate matter of having checked and accepted the recapture collection, and provide through the clean filter after the regeneration, make the filter realization recycle
The above only is preferred embodiment of the present invention, is not that the present invention is imposed any restrictions.Therefore, under the situation of the principle that does not break away from the technology of the present invention method and claims institute protection domain of enclosing, can make various modifications, variation to the present invention.
Appendix: element tabulation
1 gas inlet
2 grain catcher housings
3 filter
4 O RunddichtringOs
5 tail gas evacuation ports
Detachable mouthful of 6 housings
7 differential pressure pickups
8 Auto Instrument desks
9 pressure reduction display devices
10 safety valves
11 bypass tubes
12 safety valve position transducers
13 safety valve position informations and endurance display device
14 filter are changed time and number of times register.
Claims (10)
1. removable motor-vehicle tail-gas particulate matter removing system is characterized in that comprising:
Gas inlet (1);
Tail gas evacuation port (5);
Grain catcher housing (2) is arranged between gas inlet (1) and the tail gas evacuation port (5);
Filter (3) is arranged in the grain catcher housing (2) for trap particulate matter;
Differential pressure pickup (7) is arranged in the filtration pressure drop that is used for measuring described filter (3) between gas inlet (1) and the tail gas evacuation port (5), i.e. exhaust back pressure;
Bypass tube (11) is arranged between gas inlet (1) and the tail gas evacuation port (5);
And
Safety valve (10) is arranged in the bypass tube (11) for opening and closing bypass tube (11);
Wherein when described exhaust back pressure reaches the scheduled time greater than first predetermined threshold, described safety valve (10) thereby open directly enters tail gas in the atmosphere via bypass tube (11).
2. motor-vehicle tail-gas particulate matter removing according to claim 1 system, it is characterized in that also comprising: the O RunddichtringO is arranged between grain catcher housing (2) and the filter (3) so that filter (3) sealing trap particulate matter.
3. motor-vehicle tail-gas particulate matter removing according to claim 2 system, it is characterized in that: the material of described O RunddichtringO is resistant to elevated temperatures ceramic fiber, cross-sectional dimension is 8mm～50mm.
4. motor-vehicle tail-gas particulate matter removing according to claim 1 system, it is characterized in that: grain catcher housing (2) is provided with for detachable mouthful (6) that filter (3) is changed.
5. motor-vehicle tail-gas particulate matter removing according to claim 1 system, it is characterized in that: described safety valve is high temperature resistant Direct spring loaded safety valve, the heatproof of valve seat reaches 800 ℃, and can be by manually opened and close.
6. motor-vehicle tail-gas particulate matter removing according to claim 1 system, it is characterized in that: described filter (3) is selected from the wall-flow honeycomb ceramic filter of steinheilite or silicon carbide for material, physical dimension is: diameter 50mm～300mm, length 80mm～305mm, several 8～93 hole/square centimeters of hole order.
7. motor-vehicle tail-gas particulate matter removing according to claim 1 system is characterized in that also comprising: pressure reduction display device (9), and the exhaust back pressure that differential pressure pickup (7) is measured shows; Wherein when described exhaust back pressure during greater than second predetermined threshold described pressure reduction display device (9) glimmer always, and when described exhaust back pressure during greater than first predetermined threshold, described system sends warning, and wherein said second predetermined threshold is 80% of first predetermined threshold.
8. motor-vehicle tail-gas particulate matter removing according to claim 7 system, it is characterized in that: described first predetermined threshold is defined as 5～20kPa and the described scheduled time is 10 seconds.
9. motor-vehicle tail-gas particulate matter removing according to claim 1 system, it is characterized in that also comprising: safety valve position information and endurance display device (13), demonstration is by the opening and closing state of the safety valve of safety valve position transducer (12) sensing, and record security opening of valves and endurance of closing respectively.
10. motor-vehicle tail-gas particulate matter removing according to claim 9 system, it is characterized in that also comprising: filter is changed time and number of times register (14), replacing time and the number of times of record filtering body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201310048508 CN103291418A (en) | 2012-02-24 | 2013-02-07 | Replaceable motor vehicle exhaust particulate removing system |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220061818.0 | 2012-02-24 | ||
| CN201220061818 | 2012-02-24 | ||
| CN 201310048508 CN103291418A (en) | 2012-02-24 | 2013-02-07 | Replaceable motor vehicle exhaust particulate removing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103291418A true CN103291418A (en) | 2013-09-11 |
Family
ID=49092861
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320070445 Expired - Fee Related CN203214128U (en) | 2012-02-24 | 2013-02-07 | Replaceable motor vehicle exhaust particle removal system |
| CN 201310048508 Pending CN103291418A (en) | 2012-02-24 | 2013-02-07 | Replaceable motor vehicle exhaust particulate removing system |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320070445 Expired - Fee Related CN203214128U (en) | 2012-02-24 | 2013-02-07 | Replaceable motor vehicle exhaust particle removal system |
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| Country | Link |
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| CN (2) | CN203214128U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949113A (en) * | 2014-05-10 | 2014-07-30 | 武利 | Floor heating purifying, scrubbing and anti-blocking backwashing device |
| CN105863787A (en) * | 2015-01-20 | 2016-08-17 | 翟佩姗 | Particulate filter device |
| CN106703941A (en) * | 2017-01-12 | 2017-05-24 | 万志帅 | Active filtering system for automobile exhaust particle emissions |
| CN110274990A (en) * | 2018-03-13 | 2019-09-24 | 日本碍子株式会社 | The water spray suppression test device and method of gas sensor |
| CN110725746A (en) * | 2019-10-10 | 2020-01-24 | 徐州瑞田工程机械有限公司 | Diesel engine tail gas purification backpressure alarm device |
| CN113062789A (en) * | 2020-01-02 | 2021-07-02 | 广州汽车集团股份有限公司 | Vehicle exhaust particle trapping and regenerating device and method and vehicle |
| CN113279843A (en) * | 2021-05-31 | 2021-08-20 | 一汽解放汽车有限公司 | Aftertreatment system, vehicle, and control method for vehicle |
| CN114837782A (en) * | 2022-06-08 | 2022-08-02 | 凯龙高科技股份有限公司 | Emission reduction device of fixed source diesel engine and control method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736107A (en) * | 2016-03-11 | 2016-07-06 | 柳州六品科技有限公司 | Special air exhaust pipeline for engineering vehicle |
-
2013
- 2013-02-07 CN CN 201320070445 patent/CN203214128U/en not_active Expired - Fee Related
- 2013-02-07 CN CN 201310048508 patent/CN103291418A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103949113A (en) * | 2014-05-10 | 2014-07-30 | 武利 | Floor heating purifying, scrubbing and anti-blocking backwashing device |
| CN105863787A (en) * | 2015-01-20 | 2016-08-17 | 翟佩姗 | Particulate filter device |
| CN106703941A (en) * | 2017-01-12 | 2017-05-24 | 万志帅 | Active filtering system for automobile exhaust particle emissions |
| CN110274990A (en) * | 2018-03-13 | 2019-09-24 | 日本碍子株式会社 | The water spray suppression test device and method of gas sensor |
| CN110725746A (en) * | 2019-10-10 | 2020-01-24 | 徐州瑞田工程机械有限公司 | Diesel engine tail gas purification backpressure alarm device |
| CN113062789A (en) * | 2020-01-02 | 2021-07-02 | 广州汽车集团股份有限公司 | Vehicle exhaust particle trapping and regenerating device and method and vehicle |
| CN113062789B (en) * | 2020-01-02 | 2022-01-18 | 广州汽车集团股份有限公司 | Vehicle exhaust particle trapping and regenerating device and method and vehicle |
| CN113279843A (en) * | 2021-05-31 | 2021-08-20 | 一汽解放汽车有限公司 | Aftertreatment system, vehicle, and control method for vehicle |
| CN114837782A (en) * | 2022-06-08 | 2022-08-02 | 凯龙高科技股份有限公司 | Emission reduction device of fixed source diesel engine and control method thereof |
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| Publication number | Publication date |
|---|---|
| CN203214128U (en) | 2013-09-25 |
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Application publication date: 20130911 |