CN201250688Y - Cleaning device of tail gas of diesel vehicle - Google Patents
Cleaning device of tail gas of diesel vehicle Download PDFInfo
- Publication number
- CN201250688Y CN201250688Y CNU2008201041668U CN200820104166U CN201250688Y CN 201250688 Y CN201250688 Y CN 201250688Y CN U2008201041668 U CNU2008201041668 U CN U2008201041668U CN 200820104166 U CN200820104166 U CN 200820104166U CN 201250688 Y CN201250688 Y CN 201250688Y
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- tail gas
- diesel
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- purifier
- plasma purifier
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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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- Exhaust Gas After Treatment (AREA)
Abstract
The utility model relates to a cleaning device of tail gas of diesel vehicle, which is characterized in that a plasma purifier and a particle oxidizing and regenerating device are arranged on a tail gas pipeline of the diesel vehicle, wherein the plasma purifier purifies the rail gas and collects the particles through the plasma purifying technique, a compression air pipe led out from a vehicular compressor is communicated into a particle gathering and capturing area (an oxidizing and regenerating area), a container provided with oxidation catalyst is arranged on the compression air pipeline, a control valve is arranged on the pipeline, and an outlet of the plasma purifier is a vent hole of the tail gas of the diesel vehicle. The device utilizes the plasma purifying technique to purify the tail gas and collect the particles, utilizes the temperature of the tail gas of the diesel vehicle to finish oxidization and regeneration of the particles, the regenerating efficiency is high, the oxidization is sufficient, a collecting electrode is cleaned better, a flow path of the particles (the tail gas) is added on an electrode disc arranged in the radial direction, which guarantees the sufficient oxidization reacting time, the regenerating reaction is carried out in the purifier, which prevents the secondary pollution, the structure is simple and compact, the cost is low, the reliability is good, the operation is easy, and the energy consumption is very low.
Description
Technical field
The utility model relates to a kind of diesel car tail gas refining technology, and particularly a kind of particulates in exhaust gas from diesel vehicle of using plasma technology purifies and regeneration techniques.
Background technique
Automobile is a kind of efficient modern traffic tool, it has improved people's the line efficiency that goes out, promoted the development of producing, made things convenient for people's life, because diesel engine has the favor that advantages such as thermal efficiency height, fuel consumption rate is low, fuel price is cheap obtain people gradually, therefore, its application area is more and more wider, the CO of diesel engine, HC discharging is obviously lower, and discharge amount and the petrol engine of NOx are suitable, but the discharge amount of particulate matter is 20～60 times of petrol engine.Like this, the pollutant that motor vehicle emission is a large amount of, serious harm human health, destroy our ecotope, according to the data introduction, the vehicle flowrate on the avenue is per hour 1000～2000 the time, and these three kinds of harmful gases of CO, HC and NOx account for more than 80%～90% of whole harmful gases.Therefore how to handle automobile noxious emission gas, become key subjects in the energy and environment research.The document that has is presented in system the sub-catcher of diesel particulation is set, and catcher adds the composite oxides of rare earth metal and precious metal formation, plays the effect of handling CO, HC and Nox.Design about purifier for tail gas of diesel truck, document also has some reports, Chinese patent for example, " purifier for tail gas of diesel truck " (application number: 200620094919), a kind of purifier for tail gas of diesel truck is provided, be provided with three metafiltration circulation plates in the purifying box of sealing, one side-lower is connected with the arch curved tube, the top is provided with relief opening and water filling hole, the below is provided with sewage draining exit, it can be by water filling hole with fills with water in the purifying box, and the arch curved tube of a side can be connected with the diesel engine truck exhaust pipe, because the pitch of arch is higher than purifying box on the arch curved tube, water can not poured outlet pipe in its case, tail gas that diesel-oil vehicle discharges can be discharged from the relief opening of purifying box top after purifying box purifies, and the purifying effect of its smoker dust concentration reaches more than 80%.(application number: 02254757.6) disclose and a kind ofly can discern the diesel engine combustion systems fuel-economizing, the diesel oil-saving purifier of exhaust gas smoke discharging is got rid of in control to Chinese patent " diesel oil-saving purifier ".It is to have multiple high-quality magnetic raw material made, various magnetic, the round magnetization of quantity of magnetism different model purifies sheet, round diamagnetic antimagnetic pad, metal tube adds rectangle front and back, positive and negative magnetic, the vibration piece, diamagnetic antimagnetic filtration oil intake nozzle, the diamagnetic antimagnetic oil nozzle that filters out, diamagnetic antimagnetic shell, six parts connect combination, have five parts to pack in the round diamagnetic antimagnetic shell, the sealing of diamagnetic antimagnetic filtration turnover oil nozzle is arranged at cover top portion and bottom, and the paired shell of general assembly does not produce any magnetic outward, the magnetic wave of the quantity of magnetism, magnetic add vibration with the magnetic purification in shell.Shake the hydrocarbon key in the fuel oil disconnected.And, make molecules align even with fuel oil ionicization, remove impurity and suspended matter in the fuel oil.
Because above method purifies not exclusively, treatment effeciency is lower, and waste liquid needs secondary treatment.So present international cutting edge technology is the plasma for purification technology, it is the latest development direction of diesel engine reprocessing, along with the automobile emissions standards rules are more and more stricter, the superiority and the advance of plasma technique purifying tail gas of diesel vehicles particulate aspect further display, and this technology is a up-and-coming new technology.Therefore, the someone has invented patent " plasma diesel engine automobile exhaust purifier " (application number: 200310114014) again, a kind for the treatment of vehicle exhaust product is disclosed, it is by the high voltage pulse plasma, add anion launcher in the cyclone separator, device is cut off on the cigarette road, the plasma diesel engine automobile exhaust purifier that plasma catalytic technology etc. is combined as a whole.It can be widely used in passenger vehicle and the lorry that various models are used diesel engine, and diesel oil is made the vent gas treatment of the power or the generating product of raw material.Owing to adopted powerful plasma technology, use plasma technology to combine simultaneously with catalysis technique, high voltage pulse plasma cyclone separator adds anion launcher more like this, and the cigarette road cuts off device etc. and is combined as a whole, thereby reaches the exhaust emission pollution that best purification is produced after by diesel engine work.Yet the inventor thinks, though this purification method is advanced, structure is complicated, and cost is too high.
Summary of the invention
The purpose of this utility model provides and a kind ofly can satisfy that diesel-oil vehicle continue to purify requires, and purifies and regeneration efficiency height, purification plant that cost is low.
Diesel car tail gas refining device of the present utility model, comprise the plasma purifier and the particulate oxide reclaimer that are installed in the exhaust gas from diesel vehicle passage, be characterized in: comprise the plasma purifier and the oxidation regeneration device that are installed in the exhaust gas from diesel vehicle passage, it is characterized in that: plasma purifier is equipped with the electrode disk group and is provided with the particulate collecting Ji Qu that carries out oxidation regeneration simultaneously, the compressed air hose that air compressor is drawn leads in the particulate collecting collection district, the container that oxidation catalyst is housed is contained on the compressed air line, air shut-off valve is arranged above, plasma purifier is provided with the reclaimer control system, and the plasma purifier outlet is the exhaust gas from diesel vehicle exhaust port.
Above-described plasma purifier is collected particulate by plasma for purification technology cleaning of off-gas; Plasma purifier is installed the multi-group electrode dish, and some electrodes that gather dust (adopting pin-board-like non-symmetry structure) are housed on every group of electrode disk, produces plasma by coronal discharge between electrode, realizes purifying and capturing function.
Above-described particulate oxide reclaimer, compressed air inlet port is installed in the side of electrode disk, directly affacts after pressurized air enters on the electrode that gathers dust of purifier electrode disk, and cleaning is adsorbed on the particulate on the electrode, guarantees that particulate can exhaustive oxidation regeneration.
The above-described container that oxidation catalyst is housed can be one or more, and the container lower bottom part communicates with compressed air line after connecing catalyst control valve.
The compressed air hose that above-described air compressor is drawn leads to oxidation regeneration district (particulate collecting Ji Qu) and is radial air inlet, over against the electrode of every group of electrode disk, is provided with a plurality of inlets.
Diesel car tail gas refining apparatus control system of the present utility model is single-chip microcomputer or computer controlled system, and control system is regulated the relevant parameters such as discharge intensity of plasma purifier electrode automatically according to the working conditions change of diesel-oil vehicle, to guarantee purifying effect.The control valve of the container below of oxidation catalyst inserts the circuit of single-chip microcomputer or computer controlled system by circuit, control system is sent instruction to control valve when the needs oxidation regeneration, the consumption of control air inlet pressure and oxidation catalyst is to guarantee carrying out smoothly of regenerative response.
Above-described diesel car tail gas refining device can be used for diesel-oil vehicle and use, and also is fit to be equipped with enterprise's use of diesel engine.
The advantage of this diesel car tail gas refining device is: adopted the higher plasma for purification technology of purification efficiency, plasma is realized by the coronal discharge that is easy to control; The oxidation regeneration reaction directly in purifier micro particle catching district, utilizes the exhaust gas from diesel vehicle temperature to finish the regenerating oxidation of particulate, the regeneration efficiency height, and oxidation is abundant, and is cleaner to the collecting electrode cleaning; Radially the electrode disk of She Zhiing has increased the flow path of particulate (tail gas), has guaranteed enough oxidation times; Regenerative response carries out in purifying body, avoids causing secondary pollution, and simple in structure, compact; Cost is low, good reliability, and processing ease, energy consumption is extremely low,
Description of drawings
Accompanying drawing is the structural representation of diesel car tail gas refining device.
Component names among the figure: 1-tail gas enters mouth, 2-purifier, 3-tail gas exhaust port, 4-blowpipe, 5-oxidation catalysis agent container, 6-catalyst control valve, 7-air shut-off valve, 8-compressed air inlet port, the vehicle-mounted air compressor of 9-, 10,11-electrode disk group, 12-particulate collecting Ji Qu (oxidation reaction zone).
Embodiment
Below in conjunction with accompanying drawing, the utility model is further specified.
As shown in Figure 1, the utility model comprises that tail gas enters mouth 1, purifier 2, tail gas exhaust port 3, blowpipe 4, oxidation catalysis agent container 5, catalyst control valve 6, air shut-off valve 7, compressed air inlet port 8, air compressor 9, electrode disk group 10,11, particulate collecting Ji Qu (oxidation reaction zone) 12.Plasma purifier 2 is equipped with electrode disk group 10,11 and is provided with the particulate collecting collection district 12 that carries out oxidation regeneration simultaneously, the compressed air hose that air compressor 9 is drawn leads in the particulate collecting collection district 12, the container 5 that oxidation catalyst is housed is contained on the compressed air line 4, air shut-off valve 7 is arranged above, and plasma purifier 2 outlets are the exhaust gas from diesel vehicle exhaust port.Plasma purifier 2 is provided with the reclaimer control system, the reclaimer control system is single-chip microcomputer or computer controlled system, the catalyst control valve 6 of container 5 belows of the gather dust electrode and the oxidation catalyst of plasma purifier is received diesel-oil vehicle operator cabin control switch and instrument again by the circuit of circuit access single-chip microcomputer or computer controlled system.The pressurized air that air compressor 9 uses vehicle-mounted compressor to provide, pick out with pipeline and to get final product, air outlet slit divides two ends, the left and right sides, port is equipped with air shut-off valve 7, the outlet of oxidation catalyst 5 also is connected with catalyst control valve 6, its outlet is communicated with the outlet of air shut-off valve 7, by the situation of oxidation reaction, together with an amount of pressurized air and catalyzer from radially sending in the purifier 2.
Concrete implementation methods: control system makes electrode disk group 10,11 that coronal discharge take place, produce plasma, exhaust gas from diesel vehicle enters mouth 1 through plasma tail gas and enters particulate collecting Ji Qu (oxidation reaction zone) 12, plasma makes generation chemical reactions such as NOx, the CO in the tail gas on the one hand, generates harmless gas and is rejected to atmospheric layer by tail gas exhaust port 3.On the other hand, with particulate adsorbing and trappings such as soots around collecting electrode, thereby realize the purification function of tail gas.When the needs oxidation regeneration, the air of vehicle-mounted compressor 9 is regulated through air shut-off valve 7, sending into oxidation catalyst 5 at blowpipe 4 and catalyst control valve 6 meets, flow into the particulate collecting Ji Qu (oxidation reaction zone) 12 of purifier 2 together by compressed air inlet port 8, in particulate collecting Ji Qu (oxidation reaction zone) 12, the particulates emission generation oxidation regeneration reaction that the catalyst traps of oxidation catalysis agent container 5 arrives, the harmless gas that reaction generates is discharged 3 through the tail gas relief opening and is discharged atmospheric layer.Because electrode disk group 10,11 sides are over against compressed air inlet port 7, guaranteed particulate oxidation rapidly after adding oxidation catalyst on the one hand, can also guarantee that on the other hand pressurized air can clean out collecting electrode, guarantee normal coronal discharge, satisfy the requirement of the lasting purification of particulates in exhaust gas from diesel vehicle plasma purifier.
The utility model working principle: the particulates in exhaust gas from diesel vehicle plasma purifier is integrated application plasma technique, electronic technology, COMPUTER DETECTION and control technique, by the method that theory analysis combines with experimental research, a kind of soot particle of diesel motor exhaust, the new type purification system that NOx, CO etc. pollute of reducing that researchs and develops out.Reclaimer is the important component part of particulates in exhaust gas from diesel vehicle plasma purifier.The utility model needs satisfied high temperature (temperature is greater than the minimum temperature of particulate oxide burning), oxygen enrichment (oxygen concentration is greater than 2%) and oxidization time three key elements such as (being arranged with catalyst control valve and air shut-off valve the enough reaction time) around particulate oxide regeneration, done special design according to the structural feature of particulates in exhaust gas from diesel vehicle plasma purifier, the regeneration of assurance particulate oxide can be carried out smoothly, satisfies the requirement of the lasting purification of particulates in exhaust gas from diesel vehicle plasma purifier.
Above-described three elements, the high temperature condition of the first element is brought by diesel engine vent gas.Second and three elements are flows of regulating air by catalyst control valve and air shut-off valve, make oxidation regeneration have that suitable reaction time and concentration realizes.
Claims (5)
1. diesel car tail gas refining device, comprise the plasma purifier (2) and the oxidation regeneration device that are installed in the exhaust gas from diesel vehicle passage, it is characterized in that: plasma purifier (2) is equipped with electrode disk group (10,11) and be provided with the particulate collecting Ji Qu (12) that carries out oxidation regeneration simultaneously, the compressed air hose that air compressor (9) is drawn leads among the particulate collecting Ji Qu (12), the container (5) that oxidation catalyst is housed is contained on the compressed air line (4), air shut-off valve (7) is arranged above, plasma purifier (2) is provided with the reclaimer control system, and plasma purifier (2) outlet is the exhaust gas from diesel vehicle exhaust port.
2. diesel car tail gas refining device according to claim 1, it is characterized in that: the electrode disk group is equipped with some electrodes that gather dust on (10,11), the side of electrode disk group (10,11) is over against compressed air inlet port, and electrode disk group (10,11) is installed in the particulate collecting Ji Qu (12).
3. diesel car tail gas refining device according to claim 1 is characterized in that: the described container (5) that oxidation catalyst is housed is one or more, and the container lower bottom part connects catalyst control valve (6) back and communicates with compressed air line.
4. diesel car tail gas refining device according to claim 1 is characterized in that: it is radial air inlet that the compressed air hose (4) that described vehicle-mounted air compressor (9) is drawn leads to particulate collecting Ji Qu (12), is provided with a plurality of inlets.
5. diesel car tail gas refining device according to claim 1, it is characterized in that: described reclaimer control system is single-chip microcomputer or computer controlled system, the bottom control valve (6) of container (5) below of the gather dust electrode and the oxidation catalyst of plasma purifier is received diesel-oil vehicle operator cabin control switch and instrument again by the circuit of circuit access single-chip microcomputer or computer controlled system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201041668U CN201250688Y (en) | 2008-04-08 | 2008-04-08 | Cleaning device of tail gas of diesel vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201041668U CN201250688Y (en) | 2008-04-08 | 2008-04-08 | Cleaning device of tail gas of diesel vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN201250688Y true CN201250688Y (en) | 2009-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201041668U Expired - Fee Related CN201250688Y (en) | 2008-04-08 | 2008-04-08 | Cleaning device of tail gas of diesel vehicle |
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| Country | Link |
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| CN (1) | CN201250688Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567761A (en) * | 2016-10-13 | 2017-04-19 | 华中科技大学 | Composite automobile exhaust particle filtering device |
| CN107288718A (en) * | 2016-04-13 | 2017-10-24 | 东北林业大学 | Automobile exhaust purifier |
| CN107587926A (en) * | 2017-09-21 | 2018-01-16 | 东莞职业技术学院 | Exhaust gas from diesel vehicle high-efficiency purifying method and clarifier |
| CN107664049A (en) * | 2017-10-25 | 2018-02-06 | 吉林大学 | A kind of pressure swing type diesel particulation Electrostatic regenerative system and its control method |
-
2008
- 2008-04-08 CN CNU2008201041668U patent/CN201250688Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107288718A (en) * | 2016-04-13 | 2017-10-24 | 东北林业大学 | Automobile exhaust purifier |
| CN106567761A (en) * | 2016-10-13 | 2017-04-19 | 华中科技大学 | Composite automobile exhaust particle filtering device |
| CN107587926A (en) * | 2017-09-21 | 2018-01-16 | 东莞职业技术学院 | Exhaust gas from diesel vehicle high-efficiency purifying method and clarifier |
| CN107587926B (en) * | 2017-09-21 | 2023-08-22 | 东莞职业技术学院 | Efficient purification method and purifier for tail gas of diesel vehicle |
| CN107664049A (en) * | 2017-10-25 | 2018-02-06 | 吉林大学 | A kind of pressure swing type diesel particulation Electrostatic regenerative system and its control method |
| CN107664049B (en) * | 2017-10-25 | 2024-01-30 | 吉林大学 | Pressure-variable diesel particulate static trapping and regenerating system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20100408 |