CN207989112U - A kind of diesel engine exhaust gas treatment device - Google Patents
A kind of diesel engine exhaust gas treatment device Download PDFInfo
- Publication number
- CN207989112U CN207989112U CN201820036253.8U CN201820036253U CN207989112U CN 207989112 U CN207989112 U CN 207989112U CN 201820036253 U CN201820036253 U CN 201820036253U CN 207989112 U CN207989112 U CN 207989112U
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- China
- Prior art keywords
- dpf
- filter core
- diesel engine
- exhaust gas
- treatment device
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- 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
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- Processes For Solid Components From Exhaust (AREA)
Abstract
The utility model belongs to exhaust gases of internal combustion engines processing technology field, and in particular to a kind of diesel engine exhaust gas treatment device, including two DPF, two DPF are connected by the exhaust pipe of triple valve and diesel engine；The DPF includes filter core and microwave applicator, and the filter core and the microwave applicator are set in the pipeline of the DPF, and the microwave applicator is used to heat the exhaust particulate in the filter core.The utility model can solve the problem of diesel engine vent gas particle in the prior art is insufficient in DPF system regeneration, and exhaust micro particle is easily accumulated in filter core, filter core is caused to block.
Description
Technical field
The utility model belongs to exhaust gases of internal combustion engines processing technology field, and in particular to a kind of diesel engine exhaust gas treatment device.
Background technology
Estimate that one ten tjemplon for coming ten thousand tons, the diesel oil consumed daily is with hundred tons according to International Maritime Organization (IMO)
Meter, solid particulate matter total emission volumn are equivalent to the half of whole world motor vehicle emission.
Vent gas treatment after the organic pre-treatment of major measure of reduction diesel emission, emission controls by improving combustion and machine at present.Diesel engine
Machine pre-treatment and emission controls by improving combustion have reached high level, to further decrease the discharge tool of diesel engine by the two approach
There is certain limit.And tail gas disposal technique still has very big research space after machine, and international research finds particulate matter trap
DPF is to solve diesel engine particles to discharge most effective post-processing technology.Some researches show that：Conventional and not optimized diesel oil tail
Air purifying apparatus is more than that 80% air-flow passes through the purifier carrier sectional area less than 50%.
Current DPF system both domestic and external mostly uses cyclic regeneration technology, i.e., platinum palladium catalyst is coated in DPF system filter core
Deng using the oxidation activation energy of catalyst degradation particle, particle being enable to burn at relatively low temperature, to realize DPF
The regeneration of exhaust micro particle in system.Since the fuel qualities of China at this stage cannot meet the requirement of the system, exhaust micro particle exists
DPF system regeneration is insufficient, and exhaust micro particle is easily accumulated in filter core, and the blocking of filter core is caused.Therefore use cyclic regeneration technology
Traditional DPF system after a period of use removes the filter core in DPF system, removes the exhaust micro particle accumulated in filter core
It could come into operation again, be unable to continuous service.Therefore, traditional DPF system is not appropriate for using on boat diesel engine at home.
Utility model content
The utility model provides a kind of diesel engine exhaust gas treatment device, is existed with solving diesel engine vent gas particle in the prior art
The problem of DPF system regeneration is insufficient, and exhaust micro particle is easily accumulated in filter core, filter core is caused to block.
The utility model provides a kind of diesel engine exhaust gas treatment device, including two DPF, two DPF pass through threeway
The exhaust pipe of valve and diesel engine connects；
The DPF includes filter core and microwave applicator, and the filter core and the microwave applicator are set to the pipe of the DPF
In road, the microwave applicator is used to heat the exhaust particulate in the filter core.
Further include automatic control device as the preferred embodiment of the utility model first aspect, the automatic control device
It is the tail gas pressure sensor, described including controller, tail gas pressure sensor, exhaust gas temperature sensor and stepper motor
Exhaust gas temperature sensor, the stepper motor and the microwave applicator are electrically connected with the controller respectively.
As the preferred embodiment of the utility model first aspect, the tail gas pressure sensor, exhaust temperature sensing
In the pipeline of the DPF, the stepper motor is also mechanically connected with the triple valve device.
Further include bypass gas circuit, the bypass gas circuit and diesel engine as the preferred embodiment of the utility model first aspect
Exhaust pipe connection, equipped with by-passing valve, the break-make of the by-passing valve is controlled the bypass gas circuit by the controller.
As the preferred embodiment of the utility model first aspect, the filter core is honeycomb ceramic filter core, the ceramic honey comb
Waveform duct and unsymmetrical duct are equipped in filter core.
Further include micro-wave screening net, thermal insulation board, the micro-wave screening as the preferred embodiment of the utility model first aspect
Net is covered in the periphery of the filter core, and the thermal insulation board is covered in the periphery of the micro-wave screening net.
The beneficial effects of the utility model are：Compared with prior art, the parallel DPF of this technology setting two-way, passes through
Triple valve alternate conduction two-way DPF, after DPF absorbs a certain amount of exhaust particulate all the way, another way is connected in control triple valve
DPF.It is allowed to burn using the exhaust particulate in microwave applicator heating DPF filter cores simultaneously, it can be higher by oxidation activation energy
Exhaust particulate completely burned realizes the regeneration to DPF.Alternate conduction, alternately regeneration two-way DPF can be realized to diesel engine vent gas
Continuous processing.In conjunction with automatic control device, DPF inner exhaust gas parameters are detected using temperature and pressure sensor, in conjunction with automatic
Control technology controls the conducting direction of triple valve, realizes the automatic regeneration of the automatic conducting and DPF filter cores of DPF accesses.It utilizes
The utility model does not need regular dismounting cleaning filter core, mitigates the maintenance cost to DPF significantly.
Description of the drawings
It is required in being described below to embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the DPF structural schematic diagrams of the utility model embodiment；
Fig. 2 is that the apparatus structure of the utility model embodiment is illustrated.
Wherein, 1, filter core, 2, micro-wave screening net, 3, thermal insulation board, 4, microwave applicator, 5, controller, 6, tail gas pressure passes
Sensor, 7, exhaust gas temperature sensor, 8, triple valve, 9, DPF, 10, by-passing valve, 11, stepper motor.
Specific implementation mode
It is new to this practicality below in conjunction with attached drawing to keep the purpose of this utility model, technical solution and advantage clearer
Type embodiment is described in further detail.
The utility model embodiment discloses a kind of diesel engine exhaust gas treatment device, including two (diesel particulate mistakes of DPF 9
Filter), two DPF 9 are arranged parallel, are then connected the exhaust pipe of two DPF9 and diesel engine by a triple valve 8
It connects, forms three vent passages.Tail gas is connected into any one DPF 9 using triple valve 8, when DPF 9 absorb it is a certain amount of
After exhaust particulate, 9 gas circuits of DPF are closed, then tail gas is connected in another DPF 9.
Different from traditional DPF 9, the DPF 9 of the utility model further includes not only microwave applicator 4 including filter core 1, filter
Core 1 and microwave applicator 4 are set in the pipeline of DPF 9.Microwave applicator 4 is used to heat the exhaust particulate adsorbed in filter core 1,
So that the exhaust particulate adsorbed in the filter core 1 of DPF 9 is fully burnt, achievees the purpose that regenerate filter core 1.After filter core 1 regenerates
It is re-used for processing tail gas, alternate cycles use two-way DPF 9, it can be achieved that continuous processing to tail gas.
Another embodiment on the basis of the above embodiments, the utility model further include automatic control device, are automatically controlled
Device is used to control the conducting direction of triple valve 8 and controls the start and stop of microwave applicator 4.Automatic control device includes controller
5, tail gas pressure sensor 6, exhaust gas temperature sensor 7 and stepper motor 11, tail gas pressure sensor 6, exhaust temperature sensing
Device 7, stepper motor 11 and microwave applicator 4 are electrically connected with controller 5 respectively, unified to control each equipment by controller 5
Working condition.By tail gas pressure sensor 6, exhaust gas temperature sensor 7 to monitor in real time in the pipeline of the DPF 9
The pressure and temperature parameter of 9 inner exhaust gas of DPF.Setting tail gas pressure sensor 6, detection in the front-end and back-end of 9 pipelines of DPF
The tail gas pressure of the rear and front ends DPF, and controller 5 is sent data to, the differential back of rear and front end is calculated by controller 5.
Stepping 11 machines of electricity, which are not only electrically connected with controller 5, to be also mechanically connected with triple valve 8, i.e., is controlled by controller 5
The rotation of stepper motor 11 is realized to control the conducting direction of triple valve 8 by stepper motor 11 to the automatic of triple valve 8
Control.
When differential back reaches preset value, controller 5 controls stepper motor 11 and acts, the access of switching three-way valve 8, closes
Current 9 gas circuits of DPF, conducting another way DPF 9, the microwave applicator 4 for the DPF 9 that subsequent start-up is closed, burn filter core 1
Interior exhaust particulate.Regenerative process is divided into 2 stages：Heating period and combustion phases, in the heating period, triple valve 8 is closed should
9 air-flows of road DPF, starting microwave applicator 4 makes the exhaust particulate in filter core 1 be brought rapidly up, and the head temperature of filter core 1 reaches micro-
When 600 DEG C of the initiation temperature of grain, temperature signal is sent to controller 5 by exhaust gas temperature sensor 6；In the heating period, controller 5
Driving Stepping Motor 11 makes triple valve 8 start to act, and a certain amount of waste gas stream filter core 1, the particle of 1 front end of filter core is allowed to fire rapidly
Burn, combustion flame prolongs burnings backward, and the particle on filter core 1 is all burnt up, realizes and regenerates, in entire regenerative process triple valve 8 by
Stepper motor 11 in vent gas treatment control system accurately controls.
The structure of the automatic control device of the utility model is the common technology of electromechanical observation and control technology field, the skill of this field
Art personnel can build the SCM system with signal handling capacity according to mission requirements, and control stepper motor using the system
Operation and relevant device start and stop.
The filter core 1 of another embodiment on the basis of the above embodiments, DPF 9 is honeycomb ceramic filter core, ceramic honey comb filter
In-core is equipped with waveform duct and unsymmetrical duct, and in the micron-scale, this structure can increase tail gas and filter to the diameter of aperture
The contact area of core 1 improves absorptivity of 1 core of filter to exhaust particulate.
Another embodiment on the basis of the above embodiments, in order to further increase the efficiency of regenerative process, this practicality is new
Type further includes micro-wave screening net 2 and thermal insulation board 3, and micro-wave screening net 2 is covered in the periphery of filter core 1, and thermal insulation board 3 is covered in microwave screen
Cover the periphery of net 2.When microwave applicator 4 emits microwave to filter core 1, lost microwave reflection is returned filter core 1 by micro-wave screening net 2,
So that microwave applicator 4 energy concentration act on the exhaust particulate of filter core 1, to make filter core 1 exhaust particulate uniformly and
It is brought rapidly up.Thermal insulation board 3 is used to prevent scattering and disappearing for heat, and both energy saving energy consumption, made regenerative process under continuous high temperature environment
It carries out, and completely cuts off heat, ensure to be in normal working temperature outside DPF.Another embodiment on the basis of the above embodiments, in order to
Cope with load excessive when high temperature and pressure damage equipment, the utility model further include bypass gas circuit, bypass gas circuit get around DPF 9 with
The exhaust pipe of diesel engine connects, and by-passing valve 10 is equipped in bypass gas circuit, and the break-make of by-passing valve 10 is controlled by the controller 5
System.When the data that tail gas pressure sensor 6, exhaust gas temperature sensor 7 detect are greater than the set value, controller 5 starts by-passing valve
10, open overload protection of the bypass gas circuit realization to equipment.Electromagnetism by-passing valve can be selected in the by-passing valve 10 of the utility model, will be electric
Magnetic by-passing valve directly can be electrically connected realization with controller 5 and be automatically controlled to it.
In conclusion the utility model provides a kind of diesel engine exhaust gas treatment device, the parallel DPF of setting two-way passes through
Triple valve alternate conduction two-way DPF, after DPF absorbs a certain amount of exhaust particulate all the way, another way is connected in control triple valve
DPF.It is allowed to burn using the exhaust particulate in the filter core of microwave applicator heating DPF simultaneously, it can be higher by oxidation activation energy
Exhaust particulate completely burned, realize regeneration to DPF.Alternate conduction, alternately regeneration two-way DPF can be realized to diesel oil tail
The continuous processing of gas.In conjunction with automatic control device, DPF inner exhaust gas parameters are detected using temperature and pressure sensor, in conjunction with certainly
The conducting direction of dynamic control technology control triple valve realizes the automatic regeneration of the automatic conducting and DPF filter cores of DPF accesses.Profit
Regular dismounting is not needed with the utility model and clears up filter core, mitigates the maintenance cost to DPF significantly.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all in this practicality
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (6)
1. a kind of diesel engine exhaust gas treatment device, which is characterized in that including two DPF, two DPF pass through triple valve and bavin
The exhaust pipe of oil machine connects；
The DPF includes filter core and microwave applicator, and the filter core and the microwave applicator are set to the pipeline of the DPF
In, the microwave applicator is used to heat the exhaust particulate in the filter core.
2. diesel engine exhaust gas treatment device according to claim 1, which is characterized in that further include automatic control device, institute
It includes controller, tail gas pressure sensor, exhaust gas temperature sensor and stepper motor, the tail gas pressure to state automatic control device
Force snesor, the exhaust gas temperature sensor, the stepper motor and the microwave applicator are electric with the controller respectively
Property connection.
3. diesel engine exhaust gas treatment device according to claim 2, which is characterized in that the tail gas pressure sensor, institute
Exhaust gas temperature sensor is stated in the pipeline of the DPF, the stepper motor is also mechanically connected with the triple valve.
4. diesel engine exhaust gas treatment device according to claim 2, which is characterized in that further include bypass gas circuit, the side
The exhaust pipe of vent passage and diesel engine connects, and the bypass gas circuit is equipped with by-passing valve, and the break-make of the by-passing valve is by described
Controller controls.
5. diesel engine exhaust gas treatment device according to claim 1, which is characterized in that the filter core is filtered for ceramic honey comb
Core, the honeycomb ceramic filter core is interior to be equipped with waveform duct and unsymmetrical duct.
6. diesel engine exhaust gas treatment device according to claim 1, which is characterized in that further include micro-wave screening net, heat-insulated
Plate, the micro-wave screening net are covered in the periphery of the filter core, and the thermal insulation board is covered in the periphery of the micro-wave screening net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820036253.8U CN207989112U (en) | 2018-01-08 | 2018-01-08 | A kind of diesel engine exhaust gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820036253.8U CN207989112U (en) | 2018-01-08 | 2018-01-08 | A kind of diesel engine exhaust gas treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207989112U true CN207989112U (en) | 2018-10-19 |
Family
ID=63819176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820036253.8U Expired - Fee Related CN207989112U (en) | 2018-01-08 | 2018-01-08 | A kind of diesel engine exhaust gas treatment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207989112U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049941A (en) * | 2018-01-08 | 2018-05-18 | 陈爱国 | A kind of diesel engine exhaust gas treatment device and method |
| CN111764984A (en) * | 2020-06-29 | 2020-10-13 | 潍柴重机股份有限公司 | Pressure sensor device and control method |
-
2018
- 2018-01-08 CN CN201820036253.8U patent/CN207989112U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108049941A (en) * | 2018-01-08 | 2018-05-18 | 陈爱国 | A kind of diesel engine exhaust gas treatment device and method |
| CN111764984A (en) * | 2020-06-29 | 2020-10-13 | 潍柴重机股份有限公司 | Pressure sensor device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181019 Termination date: 20210108 |