CN102840011A - Electric breakdown type particle purifier of diesel engine - Google Patents
Electric breakdown type particle purifier of diesel engine Download PDFInfo
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- CN102840011A CN102840011A CN2011101663107A CN201110166310A CN102840011A CN 102840011 A CN102840011 A CN 102840011A CN 2011101663107 A CN2011101663107 A CN 2011101663107A CN 201110166310 A CN201110166310 A CN 201110166310A CN 102840011 A CN102840011 A CN 102840011A
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- filtration
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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
Abstract
The invention discloses an electric breakdown type particle purifier of a diesel engine, which is used for filtering and regenerating tail gas particles of a diesel engine, wherein the purifier comprises two subordinate purifiers (10, 20), a high-voltage static generator (30), current sensors (41, 42) and a controlling device (50); controllable valves (12, 22) are arranged at the front ends of the subordinate purifiers; and combustion supporting pipes (2) are communicated at the back ends of the controllable valves; filtering ceramics are arranged in the subordinate purifiers, and a plurality of electrodes which are connected with the positive end and the negative end of the high-voltage static generator are arranged in the filtering ceramics; the input ends of the current sensors are serially connected in a current loop of the high-voltage static generator, and the output ends of the current sensors are connected with the controlling device; and two output ends of the controlling device are connected with the controllable valves. The electric breakdown type particle purifier has the advantages that: 1, the particles in the filtering ceramics can be regenerated when the accumulation is comparatively low, and the additional oil consumption of the diesel engine can be reduced; 2, the temperature of regenerating combustion is not excessively high to protect the filtering ceramics from being damaged; 3, the flow of the combustion supporting gas is immediately changed when the particles in the filtering ceramics burn up, thereby ensuring complete combustion of the particles, reducing the frequency of the electric spark and reducing the consumption of the electric energy.
Description
Technical field
The present invention relates to a kind of electrical breakdown formula diesel engine particles purifier, be used for diesel engine vent gas particulate filtration and regeneration.
Background technique
The diesel engine particles purifier of existing technology comprises the ceramic for filtration to the diesel engine vent gas particulate filtration, makes the electric heater of particle ignition during regeneration, combustion-supporting air inlet device; When the particle in the pottery runs up to (particle fills up pottery basically) when a certain amount of, pottery is regenerated promptly through burning clearance of particles in the pottery, need to prove that if the particle in the pottery does not reach certain amount it is clean to burn; This technological scheme is very high to the purifying effect of particle, but also has deficiency: 1, pottery along with the accumulation of particle, constantly increases the exhaust back pressure of diesel engine when filtering particle, and the oil consumption of diesel engine is increased; 2, temperature can be higher in the combustion process when excessive like the fruit granule accumulation, makes the pottery damage and lose filtering function.
Application number is 2009100360256 patent of invention " exhaust purifier of diesel engine "; Its adopts through the mode of prime filter, collection carbon carbon removing device, back grade filter three-stage filtration and filters the diesel engine vent gas particle; Filter larger particles for not increasing back pressure by prime filter, collection carbon carbon removing device; Back level filter filters superfine microparticle, so that the particle accumulating rate in the level filter of back slows down; Be protection prime filter, collection carbon carbon removing device, directly it does not burnt during regeneration, but adopt the airflow scouring mode to remove particle wherein; It filters with the process of regeneration and can accomplish automatically; Adopt the additive method device to clean to back level filter; Its deficiency is: though in the 1 back level filter particle accumulating rate to slow down be that the back pressure increase of diesel engine is slowed down, the back pressure of diesel engine is still increasing; 2, the particle in the cleaning back level filter (ceramic for filtration) needs to increase the additive method device, uses inconvenient.
Summary of the invention
To above-mentioned not enough the present invention a kind of electrical breakdown formula diesel engine particles purifier is provided, back pressure is crossed ambassador's engine fuel consumption and is increased when filtering to overcome, and the higher defective that makes the pottery damage of FT during regeneration; It filters with regenerative process and can accomplish automatically.This purifier comprises the suction tude 1 that connects Diesel Engine Exhaust Pipe, divides purifier 10,20, produces the high pressure electrostatic generator 30 of electrical spark, detects the current sensor 41,42 of electrical spark, automatically the control gear 50 of controlled filter and regenerative process;
One end of described high pressure electrostatic generator 30 is connected to electrode 16,26, and the other end is connected respectively to electrode 15,25 through the input end of current sensor 41,42; The output termination control gear 50 of current sensor 41,42; Control gear 50 has output terminal and connects controllable valve 12,22 respectively, controls its action;
Described branched inlet pipe 11, be linked with combustion tube 2 between 21, combustion tube is positioned at the rear end of controllable valve 12,22.
Compared with prior art the invention has the beneficial effects as follows: 1, select suitable voltage that ceramic for filtration endoparticle accumulation more also can be regenerated, the back pressure of diesel engine remains on lower state, brings additional oil consumption to be minimized because of using ceramic for filtration; The particle accumulation is less during 2, owing to regeneration, and temperature can be not too high during regeneration, and ceramic for filtration can not receive high temperature injury; 3, behind the ceramic for filtration endoparticle ignition, change the combustion air current amount through combustion tube, particle is fully burnt, the pressure that reduces regeneration back pottery falls, and further reduces additional oil consumption; Reduce the number of times that electrical spark takes place simultaneously, reduce power consumption; 4, control automatically easy to use.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the control gear skeleton diagram.
Embodiment
Contrast description of drawings preferred embodiment of the present invention at present.
Electrical breakdown formula diesel engine particles purifier of the present invention comprises the suction tude 1 that connects Diesel Engine Exhaust Pipe, divides purifier 10,20, high pressure electrostatic generator 30, current sensor 41,42, control gear 50;
Described controllable valve is electric valve or pneumatic valve; Described electrode is processed with stainless steel material.
Ceramic for filtration is that its diameter of wall-flow type is 200 millimeters of 190 millimeters, length in the present embodiment, and the number of electrodes of inserting from ceramic front and back ends is 20.
The negative terminal of described high pressure electrostatic generator 30 is connected to electrode 16,26, and its anode is connected respectively to electrode 15,25 through the input end of current sensor 41,42; The output termination control gear 50 of current sensor 41,42; Control gear 50 has two output termination controllable valves 12,22, controls its action.
Described branched inlet pipe 11, be linked with combustion tube 2 between 21, combustion tube is positioned at the rear end of controllable valve 12,22.
Described control gear 50 can carry out logic and judge according to the signal of current sensor 41,42,12,22 actions of control controllable valve.
The working principle of the regeneration of electrical breakdown formula diesel engine vent gas particulate burning purifying device is: the anode of high pressure electrostatic generator, negative terminal are taken over the electrode in the filter pottery respectively, constitute an electrostatic field between the electrode, and electrostatic field voltage is 4KV to 8KV; The particle that ceramic for filtration filters is a conductive materials; When ceramic internal granular layer is thin, can not produce puncture, when ceramic endoparticle runs up to when a certain amount of; Breakdown voltage reduces, and produces electrical spark and makes the long-pending heat of particle, ignition.After particle burning fell, breakdown voltage improved, and electrical spark disappears.
Its working procedure is branch purifier 10 and divides purifier 20 to hocket and filter and regeneration.Step is: connect the static-generator power supply earlier and make static-generator work; Controllable valve 12 is opened then, controllable valve 22 closes; Tail gas gets into from branched inlet pipe 11 and divides purifier 10; Particle in the tail gas is caught by ceramic for filtration 14, opens controllable valve 22 during regeneration, closes controllable valve 12, and part tail gas gets into ceramic for filtration 14 through combustion tube 2; Most of tail gas gets into from branched inlet pipe 21 and divides purifier 20 in the time of ceramic for filtration 14 regeneration, and the particle in the tail gas is caught by ceramic for filtration 24; During ceramic for filtration 24 regeneration, open controllable valve 12, close controllable valve 22, part tail gas gets into ceramic for filtration 24 through combustion tube, and this time-division purifier 10 filters; So periodic duty.
The generation of electrical spark is relevant with the particle accumulation with the voltage of electrostatic field, and the voltage height is easy to generate electrical spark, and the amount of particle accumulation greatly also is easy to generate electrical spark.But the words that the particle accumulation is big; The back pressure of diesel engine can increase causes oil consumption to increase; Excessive for the unlikely increase when the state of filtration of the back pressure that makes diesel engine, can increase electrostatic field voltage, electrostatic field voltage is 7KV in the present embodiment; Can under the lower state of particle accumulation, produce electrical spark, ceramic for filtration is regenerated.
During regeneration when exhaust flow is big; Can take away the heat that electrical spark produces; Make not energy product heat of particle, and after the particle burning of bloom fell, breakdown voltage improved, electrical spark disappears; The particle Yin Wendu that is positioned at the bloom back segment can not be burnt inadequately, and frequent consumed power takes place in the render electrical spark.Be provided with combustion tube for overcoming this defective, make the exhaust flow in the pottery that gets into reproduced state (promptly producing electrical spark) suitable, be unlikely to take away a large amount of heats, make the long-pending rapidly heat of particle reach firing point.Test shows when regeneration as long as in the pottery a spot of tail gas stream mistake is arranged, and the oxygen in this tail gas is still can be combustion-supporting to particle when electrical spark disappears.The internal diameter that changes combustion tube can obtain suitable exhaust flow, and particle is fully burned.
For in time changing exhaust flow; In the electrostatic field current loop, be provided with current sensor 41,42; Current sensor has current signal to output to control gear 50 when electrical spark produces, and control gear is a SCM system, is composed of the judgement control program in the single-chip microcomputer; Specifically: after the control gear start; Open for one in Schilling controllable valve 12 or the controllable valve 22, another is closed, and respectively controllable valve 12,22 is controlled according to four kinds of situation then: 1, when current sensor 41 has electric current (being in the ceramic for filtration 14 electrical spark to be arranged), current sensor 42 no currents; The output signal of control gear 50 makes that controllable valve 22 is opened, controllable valve 12 is closed, and only part tail gas gets into ceramic for filtration 14; 2, when current sensor 41 no currents, (in the ceramic for filtration 24 electrical spark is arranged) when current sensor 42 has electric current, the output signal makes that controllable valve 12 is opened, controllable valve 22 is closed, and only part tail gas gets into ceramic for filtration 24; 3, electric current is all arranged when current sensor 41,42, the output signal makes controllable valve 12,22 keep last state, lets the pottery that is introduced into reproduced state, burns away; 4, when current sensor 41,42 no current all, the output signal makes controllable valve 12,22 still keep last state, lets the pottery that is introduced into the filtration state continue to filter.
Described current sensor ability isolated high-voltage voltage can adopt photoelectric coupling device or electromagnetic pulse coupling apparatus spare.
Test situation is following:
The diesel engine output power is constant on test-bed; Purifier of existing technology (its structure mainly comprises ceramic for filtration and electric heater and combustion-supporting air air inlet system) and the used power supply of purifier of the present invention are provided by the generator on the diesel engine; The ceramic for filtration of existing technology is identical with ceramic for filtration specification of the present invention; Be wall-flow type, 190 millimeters of diameters, 200 millimeters of length, diesel engine is with two kinds of purifier operations 2 hours respectively, and running comprises filtration and regeneration; The purifier filter regeneration process that existing technology is housed is that twice fuel consumption is 19.6 kilograms, is that 6 fuel consumption are 18.7 kilograms and purifier filter regeneration process of the present invention is housed; Diesel engine is not with purifier operation 2 hours, and fuel consumption is 18.4 kilograms; Test result shows that diesel engine uses the additional oil consumption of additional oil loss-rate existing technology purifier of purifier of the present invention low.
Claims (4)
1. electrical breakdown formula diesel engine particles purifier; It is characterized in that: this purifier comprises the suction tude (1) that connects Diesel Engine Exhaust Pipe; Divide purifier (10,20); Produce the high pressure electrostatic generator (30) of electrical spark, detect the current sensor (41,42) of electrical spark, automatically the control gear (50) of controlled filter and regenerative process;
Described minute purifier (10) be connected with suction tude (1) through branched inlet pipe (11); Branched inlet pipe (11) is provided with controllable valve (12); Divide purifier (10) to comprise housing (13); Ceramic for filtration (14) is arranged in the housing (13), be provided with some electrodes (15,16) in the ceramic for filtration (14);
Described minute purifier (20) be connected with suction tude (1) through branched inlet pipe (21); Branched inlet pipe (21) is provided with controllable valve (22); Described minute purifier (20) comprise housing (23); Ceramic for filtration (24) is arranged in the housing (23), be provided with some electrodes (25,26) in the ceramic for filtration (24);
One end of described high pressure electrostatic generator (30) is connected to electrode (16,26), and its other end is connected respectively to electrode (15,25) through the input end of current sensor (41,42); The output termination control gear (50) of current sensor (41,42); Control gear (50) has output terminal and connects controllable valve (12,22) respectively, controls its action;
Described branched inlet pipe is linked with combustion tube (2) between (11,21), and combustion tube is positioned at the rear end of controllable valve (12,22).
2. electrical breakdown formula diesel engine particles purifier according to claim 1 is characterized in that: described electrode (15) inserts from the front end of ceramic for filtration (14), and electrode (16) inserts from the rear end of ceramic for filtration (14); Described electrode (25) inserts from the front end of ceramic for filtration (24), and electrode (26) inserts from the rear end of ceramic for filtration (24), and electrode (15,16,25,26) all evenly distributes on the cross section of ceramic for filtration.
3. electrical breakdown formula diesel engine particles purifier according to claim 1 is characterized in that: the quantity of described electrode (15,16,25,26) is 20.
4. electrical breakdown formula diesel engine particles purifier according to claim 1 is characterized in that: described current sensor is photo coupler or electromagnetic pulse Coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101663107A CN102840011A (en) | 2011-06-21 | 2011-06-21 | Electric breakdown type particle purifier of diesel engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101663107A CN102840011A (en) | 2011-06-21 | 2011-06-21 | Electric breakdown type particle purifier of diesel engine |
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| CN102840011A true CN102840011A (en) | 2012-12-26 |
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| CN2011101663107A Pending CN102840011A (en) | 2011-06-21 | 2011-06-21 | Electric breakdown type particle purifier of diesel engine |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014159782A (en) * | 2013-02-20 | 2014-09-04 | Isuzu Motors Ltd | Apparatus for measuring particulate substance |
| CN107313835A (en) * | 2017-06-16 | 2017-11-03 | 苏州博菡环保科技有限公司 | A kind of purifier for purifying particles in tail gas of diesel engine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1420959A (en) * | 2000-06-01 | 2003-05-28 | 蓝星株式会社 | Apparatus for removing soot and NOx in exhaust gas from diesel engines |
| CN101273188A (en) * | 2005-08-25 | 2008-09-24 | 珀金斯发动机有限公司 | Autoselective regenerating particulate filter |
| WO2011034744A2 (en) * | 2009-09-17 | 2011-03-24 | Woodward Governor Company | Surface gap soot sensor for exhaust |
| CN102080587A (en) * | 2011-01-20 | 2011-06-01 | 中国人民解放军军事交通学院 | Regenerating unit and method of diesel particle trap |
| CN202140142U (en) * | 2011-06-21 | 2012-02-08 | 高玉琴 | Electrical breakdown type diesel engine particle purifier |
-
2011
- 2011-06-21 CN CN2011101663107A patent/CN102840011A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1420959A (en) * | 2000-06-01 | 2003-05-28 | 蓝星株式会社 | Apparatus for removing soot and NOx in exhaust gas from diesel engines |
| CN101273188A (en) * | 2005-08-25 | 2008-09-24 | 珀金斯发动机有限公司 | Autoselective regenerating particulate filter |
| WO2011034744A2 (en) * | 2009-09-17 | 2011-03-24 | Woodward Governor Company | Surface gap soot sensor for exhaust |
| CN102080587A (en) * | 2011-01-20 | 2011-06-01 | 中国人民解放军军事交通学院 | Regenerating unit and method of diesel particle trap |
| CN202140142U (en) * | 2011-06-21 | 2012-02-08 | 高玉琴 | Electrical breakdown type diesel engine particle purifier |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014159782A (en) * | 2013-02-20 | 2014-09-04 | Isuzu Motors Ltd | Apparatus for measuring particulate substance |
| CN107313835A (en) * | 2017-06-16 | 2017-11-03 | 苏州博菡环保科技有限公司 | A kind of purifier for purifying particles in tail gas of diesel engine |
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Application publication date: 20121226 |