CN101372910A - Plasma burner and diesel particulate filter trap - Google Patents

Plasma burner and diesel particulate filter trap Download PDF

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Publication number
CN101372910A
CN101372910A CNA2008101299994A CN200810129999A CN101372910A CN 101372910 A CN101372910 A CN 101372910A CN A2008101299994 A CNA2008101299994 A CN A2008101299994A CN 200810129999 A CN200810129999 A CN 200810129999A CN 101372910 A CN101372910 A CN 101372910A
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CN
China
Prior art keywords
fuel
electrode
reaction furnace
pedestal
particulate filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CNA2008101299994A
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Chinese (zh)
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CN101372910B (en
Inventor
李大勋
金冠泰
宋永焄
车旻锡
李载玉
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Korea Institute of Machinery and Materials KIMM
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Korea Institute of Machinery and Materials KIMM
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020070078580A external-priority patent/KR100866330B1/en
Priority claimed from KR1020070078581A external-priority patent/KR100866331B1/en
Priority claimed from KR1020070078579A external-priority patent/KR100866328B1/en
Priority claimed from KR1020070133306A external-priority patent/KR100913606B1/en
Application filed by Korea Institute of Machinery and Materials KIMM filed Critical Korea Institute of Machinery and Materials KIMM
Publication of CN101372910A publication Critical patent/CN101372910A/en
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Publication of CN101372910B publication Critical patent/CN101372910B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/32—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/01—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust by means of electric or electrostatic separators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/28—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a plasma reactor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
    • F01N2610/107—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance using glow plug heating elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

A plasma burner and a diesel particulate filter (DPF) trap that can effectively oxidize and remove a particulate material (PM) within an exhaust gas by preheating fuel and mixing the fuel with the exhaust gas are provided. The DPF includes: a filter that is connected to an exhaust conduit at a side opposite to that of an engine; the plasma burner that is provided within the exhaust conduit between the engine and the filter and includes a fuel inlet that supplies fuel and a flame vent that projects a flame by a plasma discharge; and a fuel inflow conduit that connects the fuel inlet and a fuel tank.

Description

Plasma burner and diesel particulate filter trap
Technical field
The present invention relates to a kind of plasma burner and diesel particulate filter trap.More specifically, the present invention relates to a kind of plasma burner and diesel particulate filter trap that can mix to come oxidation effectively by pre-heating fuel and with fuel and waste gas and remove the granular material (PM) in the waste gas.
The present invention relates to a kind of plasma burner and diesel particulate filter trap, this plasma burner and diesel particulate filter trap can come oxidation effectively and the PM that removes in the waste gas by setting and preheating plasma burner in flue gas leading, and can farthest use the space around the flue gas leading.
Background technique
The PM of motor vehicle exhaust gases mainly discharges from diesel engine.Diesel engine utilizes the mixing of air and fuel recently to regulate its output, for output high-power promptly, should increase the delivery volume of fuel with respect to predetermined air amount.In the case, and since the air quantity deficiency, some non-complete combustion of fuel, thus produce a large amount of cigarettes.
And, when diesel engine is worked, because the high-pressure injection phase of fuel is short, thus the compact district appears in the firing chamber partly, thus produce a large amount of cigarettes.
It is to capture the PM that discharges from diesel engine and the device of this PM of oxidation in filter that diesel engine particles filters (DPF) catcher, and can reduce 80% or more PM.In order to capture and oxidation PM, the technology that makes the filter that captures PM and diesel particulate filter regeneration and prolong its working life is extremely important.
As the regeneration method of diesel particulate filter, there is the forced regeneration method of a kind of PM that forced oxidation captured in regenerative process.This forced regeneration method is to use electric heater, burner to force to heat or utilize the method for throttling.Because the vehicle of working in the city keeps the low temperature of exhausting air, so vehicle sections ground uses this forced regeneration method.
In this forced regeneration method, the defective that electric heater exists is to consume a large amount of electric power.Because burner uses the oxygen in the waste gas, be difficult to according to serviceability and consistently operate control with the change situation of oxygen in the waste gas so burner makes.Throttling has reduced the oxidizing temperature of PM in the oxidation catalyst, but the defective that exists is that the device that is used for throttling should be connected to air intake channel and air outlet pipe.
The disclosed above-mentioned information of background technique part only is used to strengthen the understanding to background of the present invention, therefore can contain the information that does not constitute the known prior art of national those skilled in the art.
Summary of the invention
Made the present invention, so that a kind of plasma burner and diesel particulate filter to be provided, it has by pre-heating fuel and advantage that fuel and waste gas are mixed to come oxidation effectively and removes the PM in the waste gas.
The present invention has attempted to provide a kind of plasma burner and diesel particulate filter, and it has by the advantage that is provided with in flue gas leading and the preheating plasma burner also farthest uses flue gas leading space on every side to come oxidation effectively and remove the PM in the waste gas.
Exemplary embodiment of the present invention provides a kind of diesel particulate filter, and this diesel particulate filter comprises: filter, and its opposite side at motor is connected to flue gas leading; Plasma burner, it is arranged in flue gas leading between motor and the filter, and comprises the fuel inlet of fueling and the flame hole that jets out flames by plasma discharge, this plasma burner heat exhaust gases; And the fuel intake channel that connects fuel inlet and fuel tank.
This plasma burner can comprise at least one exhaust gas entrance, and this exhaust gas entrance injects the waste gas of the fuel ejection that is used for being injected into fuel inlet, and supplies with the waste gas of the mixed gas that is used to discharge fuel and waste gas.
This plasma burner can comprise: pedestal, and this pedestal comprises the mixing chamber that wherein is formed with fuel inlet and exhaust gas entrance; Electrode, this electrode is installed in the pedestal, is provided with insulator between electrode and the pedestal, and this electrode interior has heat-absorbing chamber, and the fuel that will inject from fuel inlet and exhaust gas entrance and waste gas mix and are heated into the mixed gas state at heat-absorbing chamber; And reaction furnace, this reaction furnace is spaced apart its inwall and electrode, and at the opposite side place of pedestal formation flame hole, so that this flame hole is connected on the pedestal, this reaction furnace receives mixed gas by the mixed gas nozzle that is connected to mixing chamber, and the flame that the plasma discharge between electrode and the described inwall is produced in mixed gas is ejected into flame hole.
A plurality of mixed gas nozzles can form along circumferencial direction being equidistantly spaced in reaction furnace, and form central direction at the cylindrical body predetermined angle that tilts.
One in the exhaust gas entrance can be connected on the heat-absorbing chamber that is formed on the electrode centers place, and the fuel intake channel can be arranged to be connected to heat-absorbing chamber in exhaust gas entrance.
This plasma burner can comprise injection air inlet and at least one exhaust gas entrance, this injection air inlet injects and is used for and will be injected into the air of the fuel ejection of fuel inlet, this exhaust gas entrance is supplied with waste gas to fuel and Air mixing gas, and wherein this diesel particulate filter can comprise also that the injection air that is connected on the injection air inlet flows into pipe.
This plasma burner can comprise: pedestal, this pedestal comprise the mixing chamber that wherein is formed with fuel inlet, injection air inlet and exhaust gas entrance; Electrode, this electrode is installed in the pedestal, is provided with insulator between electrode and the pedestal, and this electrode portion within it has heat-absorbing chamber, and the fuel that will inject from fuel inlet and exhaust gas entrance and waste gas mix and are heated into the mixed gas state at heat-absorbing chamber; And reaction furnace, this reaction furnace is spaced apart its inwall and electrode, and at the opposite side place of pedestal formation flame hole, so that this flame hole is connected to pedestal, this reaction furnace receives mixed gas by the mixed gas nozzle that is connected to mixing chamber, and the flame that the plasma discharge between electrode and the described inwall is produced in mixed gas is ejected into flame hole.
This injection air flows into pipe can be connected to the heat-absorbing chamber that is formed on the electrode centers place, be arranged to be connected to heat-absorbing chamber but this fuel intake channel injection air flows in the pipe, and exhaust gas entrance can be connected to mixing chamber.
This plasma burner can comprise injection air inlet and discharged air inlet, this injection air inlet injects and is used for and will be injected into the air of the fuel ejection of fuel inlet, this discharged air inlet is supplied with discharged air to fuel and Air mixing gas, wherein this diesel particulate filter can comprise also that the injection air that is connected to the injection air inlet flows into pipe, and the discharged air intake channel that is connected to the discharged air inlet.
This plasma burner can comprise: pedestal, this pedestal comprise the mixing chamber that wherein is formed with fuel inlet, injection air inlet and discharged air inlet; Electrode, this electrode is installed in the pedestal, is provided with insulator between electrode and the pedestal, and this electrode portion within it has heat-absorbing chamber, and the fuel that will inject from fuel inlet and injection air inlet and air mix and are heated into the mixed gas state at heat-absorbing chamber; And reaction furnace, this reaction furnace is spaced apart its inwall and electrode, and at the opposite side place of pedestal formation flame hole, so that this flame hole is connected to pedestal, this reaction furnace receives mixed gas by the mixed gas nozzle that is connected to mixing chamber, and the flame that the plasma discharge between electrode and the described inwall is produced in mixed gas is ejected into flame hole.
This injection air flows into pipe can be connected to the heat-absorbing chamber that is formed on the electrode centers place, be arranged to be connected to heat-absorbing chamber but this fuel intake channel injection air flows in the pipe, and the discharged air intake channel can be connected to mixing chamber.
This plasma burner can comprise injection air inlet, discharged air inlet and at least one exhaust gas entrance, this injection air inlet injects and is used for and will be injected into the air of the fuel ejection of fuel inlet, this discharged air inlet is supplied with discharged air to fuel and Air mixing gas, this exhaust gas entrance is supplied with waste gas to described mixed gas and exhausting air, wherein this diesel particulate filter can comprise also that the injection air that is connected to the injection air inlet flows into pipe, and the discharged air intake channel that is connected to the discharged air inlet.
This plasma burner can comprise: pedestal, this pedestal comprise the mixing chamber that wherein is formed with fuel inlet, injection air inlet, discharged air inlet and exhaust gas entrance; Electrode, this electrode is installed in the pedestal, is provided with insulator between electrode and the pedestal, and this electrode portion within it has heat-absorbing chamber, and the fuel that will inject from fuel inlet and discharged air inlet and air mix and are heated into the mixed gas state at heat-absorbing chamber; And reaction furnace, this reaction furnace is spaced apart its inwall and electrode, and at the opposite side place of pedestal formation flame hole, so that this flame hole is connected to pedestal, this reaction furnace receives mixed gas by the mixed gas nozzle that is connected to mixing chamber, and the flame that the plasma discharge between electrode and the described inwall is produced in mixed gas is ejected into flame hole.
This injection air flows into pipe can be connected to the heat-absorbing chamber that is formed on the electrode centers place, and this fuel intake channel can be arranged to be connected to heat-absorbing chamber in injection air flows into pipe, and discharged air intake channel and exhaust gas entrance can be connected to mixing chamber.
This plasma burner can comprise the reaction furnace that is arranged in the flue gas leading, and electrode, and this electrode is arranged in the reaction furnace, and the internal surface with reaction furnace keeps a distance simultaneously.
This reaction furnace can comprise: preheating passage, and it is connected to the fuel intake channel, the fuel of being supplied with preheating; Fuel inlet, the space between reaction furnace and the electrode is arrived in its fuel supply with described preheating; Exhaust gas entrance will mix with waste gas by the fuel that fuel inlet is injected in the reaction furnace, and is formed on a side of reaction furnace, imports with will be between reaction furnace and electrode formed mixed gas, thereby supplies with waste gas; And flame hole, the opposite side place that it is formed on reaction furnace jets out flames with the plasma discharge by described mixed gas.
This reaction furnace can comprise the exterior cylinder that is arranged in the flue gas leading, and inner cylinder body, this inner cylinder body is arranged in the exterior cylinder, between inner cylinder body and exterior cylinder, to form preheating passage, wherein, at exhaust gas entrance side place, inner cylinder body can form the internal surface of the cone that opens wide gradually towards the exhaust gas entrance side.
This fuel inlet can be formed on the inboard of described cone, to connect preheating passage between reaction furnace and electrode.
The helix structure that this preheating passage can extend towards the exhaust gas entrance side at flame oral-lateral place forms.
This plasma burner can also comprise guiding elements, and this guiding elements is arranged on exhaust gas entrance side place, and forms with the diameter bigger than exhaust gas entrance, so that waste gas is imported exhaust gas entrance.
This guiding elements comprises a plurality of veins, and these veins side place that sets within it is to form eddy current between reaction furnace and electrode.
This plasma burner can also comprise the heat exchanger that is arranged in the fuel intake channel.
Simultaneously, this plasma burner can comprise: pedestal, this pedestal comprise the discharged air inlet of supplying with discharged air; Electrode, it is installed in the pedestal, and insulator is arranged between electrode and the pedestal; And reaction furnace, this reaction furnace is spaced apart its inwall and electrode, forms flame hole at the opposite side place of pedestal, and so that this flame hole is connected to pedestal, this reaction furnace is ejected into flame hole by the flame that the plasma discharge between electrode and the described inwall produces.This fuel inlet is formed on the sidepiece of reaction furnace, and this fuel intake channel is by the inner space and the fuel tank of fuel inlet coupled reaction stove.
As mentioned above,,, fuel is mixed with waste gas, and produce flame, effectively the PM in oxidation and the removal waste gas by plasma discharge by pre-heating fuel according to the present invention.
And, by plasma burner is provided, can farthest use flue gas leading space on every side in flue gas leading.
The flow-disturbing member can come the steady flame by the exhaust flow around the flame hole of disturbance reponse stove.
Fuel nozzle is sprayed onto the flame front with flame, with further increase flame, thus further oxidation and removal PM effectively.
And, by fuel and injection air are mixed and preheating, this mixed gas is mixed with waste gas, and produce flame, effectively the PM in oxidation and the removal waste gas by plasma discharge.
And, by fuel, air and discharged air are mixed and preheating, this mixed gas is mixed with waste gas, and produce flame, effectively the PM in oxidation and the removal waste gas by plasma discharge.
According to exemplary embodiment of the present invention, by fuel and the mixed gas that is injected into the waste gas of exhaust gas entrance being imported the space between reaction furnace and the electrode, and the flame that the plasma electric charge that flows and produce between reaction furnace and electrode that will utilize described mixed gas is produced is sprayed onto flame hole, can simplify the preheating of fuel structure, and the PM in the oxidation gaseous effluent effectively, fuel is preheated in by reaction furnace.
And, according to exemplary embodiment of the present invention, by electrode being arranged on the inside of reaction furnace, and fuel and waste gas are supplied to space between the internal surface of the outer surface of electrode and reaction furnace, and, can simplify the structure that is used for fuel combination and waste gas by between the internal surface of the outer surface of electrode and reaction furnace, causing plasma discharge.
And, according to exemplary embodiment of the present invention,, do not need air compressor owing to do not need to supply with fresh air, thus the price of this device can be reduced, and can simplify the operational condition of this device.
Description of drawings
Fig. 1 is the block diagram of the diesel particulate filter of first exemplary embodiment according to the present invention.
Fig. 2 is the perspective exploded view of the plasma burner shown in the Fig. 1 of first exemplary embodiment according to the present invention.
Fig. 3 is the sectional view of this plasma burner along the line III-III of Fig. 2.
Fig. 4 is the sectional view of this plasma burner along the line IV-IV of Fig. 3.
Fig. 5 is the sectional view of the plasma burner of second exemplary embodiment according to the present invention.
Fig. 6 is the sectional view of the plasma burner of the 3rd exemplary embodiment according to the present invention.
Fig. 7 is the sectional view of the plasma burner of the 4th exemplary embodiment according to the present invention.
Fig. 8 is the sectional view of the plasma burner of the 5th exemplary embodiment according to the present invention.
Fig. 9 is the sectional view of the plasma burner of the 6th exemplary embodiment according to the present invention.
Figure 10 is the sectional view of the plasma burner of the 7th exemplary embodiment according to the present invention.
Figure 11 is the sectional view of the plasma burner of the 8th exemplary embodiment according to the present invention.
Figure 12 is the sectional view of the plasma burner of the 9th exemplary embodiment according to the present invention.
Figure 13 is the block diagram of the diesel particulate filter of the tenth exemplary embodiment according to the present invention.
Figure 14 is the perspective exploded view of the plasma burner shown in the Figure 13 of the tenth exemplary embodiment according to the present invention.
Figure 15 is the sectional view of this plasma burner along the line XV-XV of Figure 14.
Figure 16 is the sectional view of the plasma burner of the 11 exemplary embodiment according to the present invention.
Figure 17 is the block diagram of the diesel particulate filter of the 12 exemplary embodiment according to the present invention.
Figure 18 is the perspective exploded view of the plasma burner shown in the Figure 17 of the 12 exemplary embodiment according to the present invention.
Figure 19 is the sectional view of this plasma burner along the line XIX-XIX of Figure 18.
Figure 20 is the sectional view of the plasma burner of the 13 exemplary embodiment according to the present invention.
Figure 21 is the block diagram of the diesel particulate filter of the 14 exemplary embodiment according to the present invention.
Figure 22 is the perspective exploded view of the plasma burner shown in the Figure 21 of the 14 exemplary embodiment according to the present invention.
Figure 23 is the sectional view of this plasma burner along the line X X III-X X III of Figure 22.
Figure 24 is the block diagram of the diesel particulate filter of the 15 exemplary embodiment according to the present invention.
Figure 25 is the perspective exploded view of the plasma burner shown in the Figure 24 of the 15 exemplary embodiment according to the present invention.
Figure 26 is the sectional view of this plasma burner along the line X X VI-X X VI of Figure 25.
Figure 27 illustrates the figure of flame from the state of the plasma burner ejection of the 15 exemplary embodiment according to the present invention.
Figure 28 is the sectional view of the plasma burner of the 16 exemplary embodiment according to the present invention.
Figure 29 is the bottom view of the plasma burner of Figure 28.
Figure 30 is the sectional view of the plasma burner of the 17 exemplary embodiment according to the present invention.
Figure 31 is the block diagram of the diesel particulate filter of the 18 exemplary embodiment according to the present invention.
Figure 32 is the sectional view of the plasma burner shown in Figure 31.
Embodiment
The present invention is hereinafter more intactly described with reference to the accompanying drawings, exemplary embodiment of the present invention shown in the drawings.As the skilled person will recognize, under the situation that does not break away from the spirit or scope of the present invention, can make amendment to described embodiment in many ways.Drawing and description will be shown illustrative and not restrictive.In whole specification, represent components identical with identical reference character.
Fig. 1 is the block diagram according to the diesel particulate filter of first exemplary embodiment of the present invention.With reference to Fig. 1, this diesel particulate filter is the device that capture and oxidation package are contained in the PM in the waste gas of discharging by flue gas leading 40, and flue gas leading 40 is connected in motor 20.
The plasma burner 100 of oxidation that this diesel particulate filter comprises the oxidation catalyst 60 that is used for main oxidation PM, capture the filter 80 of the residue PM by oxidation catalyst 60 and promote to be captured in the PM of filter 80.
This oxidation catalyst 60 is arranged on the front of filter 80 in flue gas leading 40, be included in by the PM in the waste gas of flue gas leading 40 with main oxidation, and when the temperature of waste gas is lower than the temperature of oxidizing condition, if low temperature waste gas is heated by plasma burner 100, then oxidation catalyst 60 other also oxidations are captured in the PM in the filter 80.
This filter 80 is connected on the flue gas leading 40 at the opposite side of motor 20, to capture the PM that is included in the waste gas when therefrom mobile by the waste gas of flue gas leading 40.This filter 80 is arranged on the rear side place of oxidation catalyst 60, is included in by the PM in the waste gas of oxidation catalyst 60 main oxidations with capture.
Plasma burner 100 is portion's injected fuel within it, and it is the pre-oxidation material of hydrogen and carbon monoxide that this fuel modification is become main component, and flame wherein makes fuel combustion, thus heat exhaust gases.
As an example, this diesel particulate filter comprises the fuel intake channel 112 of the waste gas that supplies fuel in the plasma burner 100.
This plasma burner 100 is arranged in flue gas leading 40 between motor 20 and the filter 80.This plasma burner 100 comprises fuel inlet 122, exhaust gas entrance 194 and will be applied to the flame hole 128 of diesel particulate filter.
The fuel that is injected in the plasma burner 100 flows into by the fuel intake channel 112 that connects fuel inlet 122 and fuel tank 30.The waste gas that enters exhaust gas entrance 194 makes the fuel in the fuel intake channel 112 flow through fuel inlet 122, enters plasma burner 100.
In addition, can replace supplying fuel to fuel intake channel 112 and fuel inlet 122 in the plasma burner 100 with the injector (not shown) that directly fuel is injected into electrode 150.
Exhaust gas entrance 194 allows the waste gas in the flue gas leading 40 to flow into plasma burner 100.Flow through the waste gas and the fuel mix of exhaust gas entrance 194, thereby form mixed gas, and form flame in flame hole 128, this flame is produced by the plasma discharge in the described mixed gas.
Fig. 2 is the perspective exploded view of the plasma burner shown in the Fig. 1 of first exemplary embodiment according to the present invention, and Fig. 3 is the sectional view of this plasma burner along the line III-III of Fig. 2.
With reference to Fig. 2 and 3, this plasma burner 100 comprises pedestal 140, electrode 150 and reaction furnace 160.
In pedestal 140, form fuel inlet 122 and at least one exhaust gas entrance 194, and this pedestal 140 comprises and is formed on its inner mixing chamber 142.Because plasma burner 100 is arranged in the flue gas leading 40, so for the obstruction that makes exhaust-gas flow minimizes, plasma burner 100 is so that the minimized structure of the resistance of exhaust-gas flow forms.
For example, this pedestal 140 has the curved surface shape of protruding towards motor 20 sides (opposite side of electrode side).Waste gas from motor 20 effluents to filter 80 sides can be subjected to minimum drag in the convexly curved surface owing to pedestal 140 when being directed to filter 80.
Electrode 150 comprises the installation unit 154 that is installed in the pedestal 140, and insulator 152 is arranged between pedestal 140 and the electrode 150, and at the electrode 150 inner heat-absorbing chambers 156 that extend to installation unit 154 that form.
Enter heat-absorbing chamber 156 from the fuel inlet 122 of pedestal 140 and the fuel and the waste gas of exhaust gas entrance 194 respectively, to be mixed into the mixed gas state and to be heated.Insulator 152 makes electrode 150 and pedestal 140 or reaction furnace 160 electrical insulations.
Electrode 150 has following shape: its opposite side of pedestal 140 that extends to installation unit 154 is to form maximum extension and to narrow down gradually then.That is to say that heat-absorbing chamber 156 forms conical shaped.
Installation unit 154 forms Twin channel by twin flue, and comprises the second channel 154b that is formed on its inner first passage 154a and is formed on first passage 154a outside.Exhaust gas entrance 194 is connected to this first passage 154a.Heat-absorbing chamber 156 and mixing chamber 142 are connected to this second channel 154b.
Exhaust gas entrance 194 is connected to the heat-absorbing chamber 156 that is formed on electrode 150 centre by first passage 154a.What fuel intake channel 112 passed exhaust gas entrance 194 is connected internally to heat-absorbing chamber 156.
Supply to the side of the fuel supply of fuel intake channel 112, and by the waste gas that supplies to exhaust gas entrance 194 it is sprayed in the heat-absorbing chamber 156 with the mixed gas state in the tail end of fuel intake channel 112 to heat-absorbing chamber 156.
Heated mixed gas supplies to the mixing chamber 142 that is formed in the pedestal 140 by second channel 154b in heat-absorbing chamber 156.
Exhaust gas entrance 194 is connected to mixing chamber 142.The waste gas that supplies to exhaust gas entrance 194 sprays into reaction furnace 160 by mixed gas nozzle 166 with the mixed gas in the mixing chamber 142.
This reaction furnace 160 has electrode 150 and is connected in pedestal 140, and forms flame hole 128 at the opposite side place of pedestal 140.The state that the inwall maintenance and the electrode 150 of this reaction furnace 160 separates.
Because reaction furnace 160 forms cylindrical shape and electrode 150 has the shape that narrows down gradually, so the distance between the inwall of reaction furnace 160 and the electrode 150 increases gradually.That is to say that the distance of the outer surface from heat-absorbing chamber 156 sides to electrode 150 and the inwall of reaction furnace 160 is the shortest in maximum extension part office, and along with electrode 150 narrows down, this distance increases gradually.
For example, reaction furnace 160 and pedestal 140 are arranged to straight line along the length direction of flue gas leading 40, and utilize welding or bolt that reaction furnace 160 is interconnected with pedestal 140 relative outward edges under the state that electrode 150 has set.
Reaction furnace 160 is connected to the mixing chamber 142 that is formed in the pedestal 140 by mixed gas nozzle 166, and mixed gas nozzle 166 is arranged on the sidepiece place of reaction furnace 160, to receive the mixed gas from mixing chamber 142.
Because predeterminated voltage V is applied on the electrode 150, and reaction furnace 160 ground connection, so produce plasma discharge between the inwall of electrode 150 and reaction furnace 160.That is to say, because the gradually changing of the distance between the inwall of the outer surface of electrode 150 and reaction furnace 160, so the plasma discharge that produces between them extends along extended distance.
Repeat at the narrow part place of the distance of plasma discharge between electrode 150 and reaction furnace 160 that produces between electrode 150 and the reaction furnace 160, and after being diffused into the wide part of this distance, extinguish, and the part place narrow in this distance produces once more, extinguishes after being diffused into the wide part of this distance once more.
Mixed gas by combustion fuel and waste gas maybe is modified into the pre-oxidation material that comprises hydrogen and carbon monoxide with the part of this mixed gas, and the plasma discharge that produces in this mixed gas helps the oxidation in the oxidation catalyst 60.
Fig. 4 is the sectional view of plasma burner along the line IV-IV of Fig. 3.
With reference to Fig. 4, along the circumferential direction uniformly-spaced forming and to be provided with a plurality of mixed gas nozzles 166, these mixed gas nozzle 166 shapes are to become central direction at the cylindrical body predetermined angle that tilts in reaction furnace 160.
Along with the guiding of mixed gas nozzle 166, the mixed gas that is injected into reaction furnace 160 from mixing chamber 142 by mixed gas nozzle 166 forms the eddy current pattern in reaction furnace 160.
In reaction furnace 160, produce unified eddy current pattern with the described a plurality of mixed gas nozzles 166 that uniformly-spaced are provided with along circumferencial direction, thus the inner space of having used reaction furnace 160 effectively.
The plasma discharge that produces between electrode 150 and reaction furnace 160 is to the eddy current pattern generating flame of the mixed gas of guiding by mixed gas nozzle 166, and this flame is sprayed onto flue gas leading 40 by flame hole 128 from reaction furnace 160.This flame is formed for the advantage that oxidation is captured in the PM on the filter 80 by heat exhaust gases.
Increase additional element by structure to first exemplary embodiment, form the exemplary embodiment of hereinafter describing, and omitted the description of the part similar or identical, will the part different with first exemplary embodiment be described with first exemplary embodiment.
Fig. 5 is the sectional view of the plasma burner of second exemplary embodiment according to the present invention.
With reference to Fig. 5, this plasma burner 100 also comprises cover 171.This cover 171 is arranged on the place, front portion of reaction furnace 160, with the flame channeling conduct to spraying from flame hole 128, and prevents to cause flame instability owing to the flame of ejection with unexpected contact of the waste gas in reaction furnace 160 outsides.This cover 171 can be arranged in the outer wall of reaction furnace 160 by connector element 172.
Fig. 6 is the sectional view of the plasma burner of the 3rd exemplary embodiment according to the present invention.
With reference to Fig. 6, this plasma burner 100 also comprises the fuel nozzle 173 that is positioned at cover 171 fronts.This fuel nozzle 173 is connected to fuel tank 30 with reception fuel, and is arranged on cover 171 fronts, fuel is sprayed onto in the flame by cover 171 guiding.
Be injected to the heat of vaporization of fuel by flame in the flame, and waste gas is heated in addition when a large amount of fuel combustion.
Fig. 7 to Fig. 9 is the sectional view of the plasma burner of the 4th to the 6th exemplary embodiment according to the present invention.
With reference to Fig. 7 to Fig. 9, this plasma burner 100 also comprises the flow-disturbing member 174,177 and 179 around the flame hole 128 that is positioned at reaction furnace 160.As shown in Fig. 7 to 9, flow-disturbing member 174,177 and 179 can form differently.
With reference to Fig. 7, flow-disturbing member 174 forms at flame hole 128 places from the periphery of reaction furnace 160 outstanding.This flow-disturbing member 174 is sprayed onto flame hole 128 flames by making waste gas flow to collect and stablize between the outer round surface of reaction furnace 160 and flue gas leading 40.
With reference to Fig. 8, the anterior spaced apart setting of flow-disturbing member 177 and flame hole 128.This flow-disturbing member 177 can form the internal diameter circular band bigger than the internal diameter of flame hole 128.Flow-disturbing member 177 can be arranged on the front of reaction furnace 160 by connector element 175.The flame that spreads behind flame hole 128 ejection and the intended distance that advances is collected and be stabilized in to this flow-disturbing member 177 once more, and allow unburned fuel to utilize the oxygen in the waste gas to burn extraly.
With reference to Fig. 9, flow-disturbing member 179 is arranged to corresponding with the center of flame hole 128 at the place, front portion of flame hole 128.This flow-disturbing member 179 forms the plectane that is arranged on reaction furnace 160 fronts by connector element 176.
179 pairs of unburned fuel drops of the flow-disturbing member of Fig. 9 provide contact surface, and outstanding from reaction furnace 160, with the evaporation and the described fuel droplet of burning, and prevent flame owing to mix suddenly and instability with waste gas.
Figure 10 is the sectional view of the plasma burner of the 7th exemplary embodiment according to the present invention.
With reference to Figure 10, fuel intake channel 112 comprises heat exchanger 132.
As an example, the heat exchanger 132 of fuel intake channel 112 forms spirality, to increase the heat absorption area in flue gas leading 40, passes through the fuel that fuel intake channel 112 is supplied with thereby heat.
In addition, the 7th exemplary embodiment shows the situation that heat exchanger 132,134 and 136 is arranged at second exemplary embodiment, and this situation can be applied to first exemplary embodiment, the 3rd to the 6th exemplary embodiment and the 8th exemplary embodiment equally.
Figure 11 is the sectional view of the plasma burner of the 8th exemplary embodiment according to the present invention.
With reference to Figure 11, electrode 150 comprises the third channel 159 of formed perforation.This third channel 159 directly is connected to heat-absorbing chamber 156 reaction furnace 160 inside.That is to say that by in second channel 154b, mixing chamber 142 and the mixed gas nozzle 166, third channel 159 makes the part of mixed gas directly arrive reaction furnace 160 from heat-absorbing chamber 156 at most of mixed gas.Therefore, this third channel 159 can be supplied with a large amount of fuel by fuel feed pipe 112.
And the 8th exemplary embodiment shows third channel 159 and is formed on situation in first exemplary embodiment, and this situation can be applied to second to the 7th exemplary embodiment equally.
Figure 12 is the sectional view of the plasma burner of the 9th exemplary embodiment according to the present invention.
With reference to Figure 12, around exhaust gas entrance 194, form waste gas duct 181.This waste gas duct 181 directs into exhaust gas entrance 194 by an opening with waste gas, and this opening has than wide area of the distribution area that is arranged in the exhaust gas entrance 194 in the pedestal 140 and the shape that narrows down gradually from this opening.
This waste gas duct 181 comprises the first waste gas duct 181a and the second waste gas duct 181b consistent with corresponding exhaust gas entrance 194.This first waste gas duct 181a is formed on around the exhaust gas entrance 194, flows towards the exhaust gas entrance 194 that is connected in mixing chamber 142 to impel exhaust flow.
This second waste gas duct 181b flows towards the exhaust gas entrance 194 that is connected in heat-absorbing chamber 156 to impel exhaust flow around the inside of the first waste gas duct 181a is formed at exhaust gas entrance 194.
By forming high current when exhaust gas entrance 194 injects mixing chamber 142, the waste gas that guides by the first waste gas duct 181a can make the mixed gas flow by mixing chamber 142 and mixed gas nozzle 166 quicken.
By at the formation of injecting heat-absorbing chambers 156 through exhaust gas entrance 194 high current simultaneously, the fuel that the waste gas by second waste gas duct 181b guiding will supply to fuel intake channel 112 sprays in the heat-absorbing chamber 156.
In addition, the 9th exemplary embodiment shows the waste gas duct 181 and the first and second waste gas duct 181a and 181b and is formed on situation in first exemplary embodiment, and this situation can be applied to second to the 8th exemplary embodiment equally.
Figure 13 is the block diagram according to the diesel particulate filter of the tenth exemplary embodiment.
This diesel particulate filter comprises that the fuel intake channel 212, the injection air that respectively fuel, injection air and waste gas are supplied to plasma burner 200 flow into pipe 214 and discharged air intake channel 216.
This plasma burner 200 is arranged in flue gas leading 40 between motor 20 and the filter 80.This plasma burner 200 comprises fuel inlet 222, injection air inlet 224, exhaust gas entrance 294 and will be applied to the flame hole 228 of this diesel particulate filter.
Fuel is injected in the plasma burner 200 by the fuel intake channel 212 that is connected to fuel inlet 222 and fuel tank 30.Injection air flows into pipe 214 and by injection air inlet 224 is connected to flue gas leading 40 outsides outside air is injected in the plasma burner 200.Being injected into injection air flows into the fuel that the air in pipe 214 and the injection air inlet 224 will be injected in fuel intake channel 212 and the fuel inlet 222 and is sprayed onto in the plasma burner 200.
In addition, can use and fuel directly is injected into injector (not shown) in the electrode 250 replaces supplying fuel to this fuel intake channel 212 and injection air inlet 224 in the plasma burner 200.
In addition, exhaust gas entrance 294 is injected into the waste gas in the flue gas leading 40 in the mixing chamber 242.Be injected into the flame that plasma discharge produced that the waste gas in the exhaust gas entrance 294 will produce and be sprayed onto flame hole 228 in fuel and Air mixing gas.
By inject waste gas in mixing chamber 242, exhaust gas entrance 294 can keep the mixed gas in the mixing chamber 242 at high temperature.
Figure 14 is the perspective exploded view of the plasma burner shown in the Figure 13 of the tenth exemplary embodiment according to the present invention, and Figure 15 is the sectional view of this plasma burner along the line X V-X V of Figure 14.
With reference to Figure 14 and 15, this plasma burner 200 comprises pedestal 240, electrode 250 and reaction furnace 260.
In pedestal 240, form fuel inlet 222, injection air inlet 224 and exhaust gas entrance 294, and this pedestal 240 comprises and is formed on its inner mixing chamber 242.Because plasma burner 200 is arranged in the flue gas leading 40, so for the obstruction that makes exhaust-gas flow minimizes, this plasma burner 200 is so that the minimized structure of the flow resistance of waste gas forms.
For example, this pedestal 240 has the curved surface shape of protruding towards motor 20 sides (opposite side of electrode side).Waste gas from motor 20 effluents to filter 80 sides can be subjected to minimum drag in the convexly curved surface owing to pedestal 240 when being directed to filter 80.
Electrode 250 comprises heat-absorbing chamber 256 and the installation unit 254 that is installed in the pedestal 240, and insulator 252 is arranged between pedestal 240 and the electrode 250, and heat-absorbing chamber 256 forms in electrode 250 inside and extends to installation unit 254.
Be injected into heat-absorbing chamber 256 from the fuel inlet 222 of pedestal 240 and the fuel and the air of injection air inlet 224 injections respectively, to be mixed into the mixed gas state and to be heated.Insulator 252 makes electrode 250 and pedestal 240 or reaction furnace 260 electrical insulations.
Electrode 250 has following shape: its opposite side of pedestal 240 that extends to installation unit 254 is to form maximum extension and to narrow down gradually then.That is to say that heat-absorbing chamber 256 forms conical shaped.
Installation unit 254 forms Twin channel by twin flue, and comprises the second channel 254b that is formed on inner first passage 254a and is formed on this first passage 254a outside.Injection air flows into pipe 214 and is connected to first passage 254a.Heat-absorbing chamber 256 and mixing chamber 242 are connected to second channel 254b.
Injection air flows into pipe 214 and is connected to the heat-absorbing chamber 256 that is formed on electrode 250 centers by first passage 254a.Fuel intake channel 212 is arranged to be connected to heat-absorbing chamber 256 in injection air flows into pipe 214.
Supply to the side of the fuel supply of fuel intake channel 212, and by the injection air that supplies to injection air inflow pipe 214 it is injected in the heat-absorbing chamber 256 with the mixed gas state in the tail end of fuel intake channel 212 to heat-absorbing chamber 256.
Figure 16 is the sectional view of the plasma burner of the 11 exemplary embodiment according to the present invention.
With reference to Figure 16, fuel intake channel 212 and injection air flow into pipe 214 and comprise heat exchanger 232 and 234 respectively.
As an example, the heat exchanger 232 of fuel intake channel 212 forms spirality, to heat the fuel that supplies to fuel intake channel 212 by the heat absorption area that increases in flue gas leading 40.
The heat exchanger 234 that injection air flows into pipe 214 forms spirality, to heat the injection air that supplies to injection air inflow pipe 214 by the heat absorption area that increases in flue gas leading 40.
Heat exchanger 232 and 234 can be arranged on fuel intake channel 212 and injection air and flow in the pipe 214 (referring to Figure 16), and can be formed on wherein (not shown) in the arbitrary pipe.
The block diagram of Figure 17 diesel particulate filter of the 12 exemplary embodiment according to the present invention.
This diesel particulate filter comprises that the fuel intake channel 312, the injection air that respectively fuel, injection air and discharged air are supplied to plasma burner 300 flow into pipe 314 and discharged air intake channel 316.
This plasma burner 300 is arranged in flue gas leading 40 between motor 20 and the filter 80.This plasma burner 300 comprises fuel inlet 232, injection air inlet 324, discharged air inlet 326 and will be applied to the flame hole 328 of this diesel particulate filter.
Fuel intake channel 312 is injected into fuel in the plasma burner 300 by connecting fuel inlet 322 and fuel tank 30.Injection air flows into pipe 314 and by injection air inlet 324 is connected to flue gas leading 40 outsides outside air is injected plasma burner 300.Being injected into the fuel that injection air that injection air flows into pipe 314 and injection air inlet 324 will be injected into fuel intake channel 312 and fuel inlet 322 is injected in the plasma burner 300.
By discharged air inlet 326 is connected to flue gas leading 40 outsides, discharged air intake channel 316 injects plasma burner 300 with outside air.Be injected into the flame that plasma discharge produced that discharged air intake channel 316 and discharged air inlet 326 discharged air will produce and be sprayed onto flame hole 328 in fuel and Air mixing gas.
Figure 18 is the perspective exploded view of the plasma burner shown in the Figure 17 of the 12 exemplary embodiment according to the present invention, and Figure 19 is the sectional view of this plasma burner along the line XIX-XIX of Figure 18.
With reference to Figure 18 and 19, this plasma burner 300 comprises pedestal 340, electrode 350 and reaction furnace 360.
In pedestal 340, form fuel inlet 322, injection air inlet 324 and discharged air inlet 326, and pedestal 340 comprises and is formed on its inner mixing chamber 342.Because plasma burner 300 is arranged in the flue gas leading 340, so for the obstruction that makes exhaust-gas flow minimizes, this plasma burner 300 is so that the minimized structure of exhaust-gas flow resistance forms.
As an example, this pedestal 340 has the curved surface shape of protruding towards motor 20 sides (opposite side of electrode side).Waste gas from motor 20 effluents to filter 80 sides can be subjected to minimum drag in the convexly curved surface owing to pedestal 340 when being directed to filter 80.
Electrode 350 comprises heat-absorbing chamber 356 and the installation unit 354 that is installed in the pedestal 340, and insulator 352 is arranged between pedestal 340 and the electrode 350, and heat-absorbing chamber 356 extends to installation unit 354, to be formed on electrode 350 inside.
Be injected into heat-absorbing chamber 356 from the fuel inlet 322 of pedestal 340 and the fuel and the air of injection air inlet 324 injections respectively, to be mixed into the mixed gas state and to be heated.Insulator 352 makes electrode 350 and pedestal 340 or reaction furnace 360 electrical insulations.
Electrode 350 has following shape: its opposite side of pedestal 340 that extends to installation unit 354 is to form maximum extension and to narrow down gradually then.That is to say that heat-absorbing chamber 356 forms conical shaped.
Installation unit 354 forms Twin channel by twin flue, and comprises the second channel 354b that is formed on inner first passage 354a and is formed on this first passage 354a outside.Injection air flows into pipe 314 and is connected to first passage 354a.Heat-absorbing chamber 356 and mixing chamber 342 are connected to second channel 354b.
Injection air flows into pipe 314 and is connected to the heat-absorbing chamber 356 that is formed on electrode 350 centers by first passage 354a.Fuel intake channel 312 is arranged to be connected to heat-absorbing chamber 356 in injection air flows into pipe 314.
Supply to the side of the fuel supply of fuel intake channel 312, and by the injection air that supplies to injection air inflow pipe 214 it is injected in the heat-absorbing chamber 356 with the mixed gas state in the tail end of fuel intake channel 312 to heat-absorbing chamber 356.
Heated mixed gas supplies to the mixing chamber 342 that is formed in the pedestal 340 by second channel 354b in heat-absorbing chamber 356.
Discharged air intake channel 316 is connected to mixing chamber 342.The discharged air that supplies to discharged air intake channel 316 is injected to the mixed gas in the mixing chamber 342 in the reaction furnace 360 by mixed gas nozzle 366.
By described mixed gas being modified into the pre-oxidation material that comprises hydrogen and carbon monoxide, the plasma discharge of fuel and Air mixing gas helps the oxidation in the oxidation catalyst 60.
Figure 20 is the sectional view of the plasma burner of the 13 exemplary embodiment according to the present invention.
With reference to Figure 20, fuel intake channel 312, injection air flow into pipe 314 and discharged air intake channel 316 comprises heat exchanger 332,334 and 336 respectively.
For example, the heat exchanger 332 of fuel intake channel 312 forms spirality, and with the heat absorption area in the increase flue gas leading 40, thereby heating supplies to the fuel of fuel intake channel 312.
The heat exchanger 334 that injection air flows into pipe 314 forms spirality, and with the heat absorption area in the increase flue gas leading 40, thereby heating supplies to the injection air that injection air flows into pipe 314.
The heat exchanger 336 of discharged air intake channel 316 forms spirality, and with the heat absorption area in the increase flue gas leading 40, thereby heating supplies to the discharged air of discharged air intake channel 316.
Heat exchanger 332,334 and 336 can be arranged on fuel intake channel 312, injection air and flow in pipe 314 and the discharged air intake channel 316 (referring to Figure 20), and can be formed on wherein (not shown) in arbitrary pipe or two pipes.
Figure 21 is the block diagram of the diesel particulate filter of the 14 exemplary embodiment according to the present invention.
This diesel particulate filter comprises that the fuel intake channel 412, the injection air that respectively fuel, injection air and discharged air are supplied to plasma burner 400 flow into pipe 414 and discharged air intake channel 416.
Plasma burner 400 is arranged in flue gas leading 40 between motor 20 and the filter 80.This plasma burner 400 comprises fuel inlet 422, injection air inlet 424, discharged air inlet 426, exhaust gas entrance 494 and will be applied to the flame hole 428 of this diesel particulate filter.
Fuel intake channel 412 connects fuel inlet 422 and fuel tank 30, so that fuel is injected in the plasma burner 400.Injection air flows into pipe 414 injection air inlet 424 is connected to flue gas leading 40 outsides, so that outside air is injected in the plasma burner 400.Being injected into the fuel that injection air that injection air flows into pipe 416 and injection air inlet 424 will be injected into fuel intake channel 412 and fuel inlet 422 is injected in the plasma burner 400.
In addition, can enter the mouth 424 with fuel intake channel 412 and the injection air that the injector (not shown) that fuel directly is injected in the electrode 450 replaces supplying fuel in the plasma burner 400.
Discharged air intake channel 416 is connected to flue gas leading 40 outsides with discharged air inlet 426, so that outside air is injected in the plasma burner 400.Be injected into the flame that plasma discharge produced that discharged air intake channel 416 and discharged air inlet 426 discharged air will produce and be sprayed onto flame hole 428 in fuel and Air mixing gas.
In addition, exhaust gas entrance 494 injects mixing chamber 442 with the waste gas in the flue gas leading 40.The waste gas that is injected in the exhaust gas entrance 494 is sprayed onto flame hole 428 at the flame that plasma discharge produced that will produce when discharged air flows in described mixed gas.
Exhaust gas entrance 494 can reduce the air quantity that supplies to discharged air intake channel 416, and the mixed gas in the mixing chamber 442 is remained on higher temperature.
Figure 22 is the perspective exploded view of the plasma burner shown in the Figure 21 of the 14 exemplary embodiment according to the present invention, and Figure 23 is the sectional view of this plasma burner along the line X III-X III of Figure 22.
With reference to Figure 22 and 23, this plasma burner 400 comprises pedestal 440, electrode 450 and reaction furnace 460.
In pedestal 440, form fuel inlet 422, injection air inlet 424, discharged air inlet 426 and exhaust gas entrance 494, and this pedestal 440 comprises and is formed on its inner mixing chamber 442.Because plasma burner 400 is arranged in the flue gas leading 40, so for the obstruction that makes exhaust-gas flow minimizes, this plasma burner 400 is so that the minimized structure of exhaust-gas flow resistance forms.
As an example, this pedestal 440 has the curved surface shape of protruding towards motor 20 sides (opposite side of electrode side).Waste gas from motor 20 effluents to filter 80 sides can be subjected to minimum drag in the convexly curved surface owing to pedestal 440 when being directed to filter 80.
This electrode 450 comprises heat-absorbing chamber 456 and the installation unit 454 that is installed in the pedestal 440, and insulator 452 is arranged between pedestal 440 and the electrode 450, and heat-absorbing chamber 456 is formed on electrode 450 inside, to extend to installation unit 454.
Be injected into heat-absorbing chamber 456 from the fuel inlet 422 of pedestal 440 and the fuel and the air of injection air inlet 424 injections respectively, to be mixed into the mixed gas state and to be heated.Insulator 452 makes electrode 450 and pedestal 440 or reaction furnace 460 electrical insulations.
This electrode 450 has following shape: its opposite side of pedestal 440 that extends to installation unit 454 is to form maximum extension and to narrow down gradually then.That is to say that heat-absorbing chamber 456 forms conical shaped.
Installation unit 454 forms Twin channel by twin flue, and comprises the second channel 454b that is formed on inner first passage 354a and is formed on this first passage 454a outside.Injection air flows into pipe 414 and is connected to first passage 454a.Heat-absorbing chamber 456 and mixing chamber 442 are connected to second channel 454b.
Injection air flows into pipe 414 and is connected to the heat-absorbing chamber 456 that is formed on electrode 450 centers by first passage 454a.Fuel intake channel 412 is arranged to be connected to heat-absorbing chamber 456 in injection air flows into pipe 414.
Supply to the side of the fuel supply of fuel intake channel 412, and by the injection air that supplies to injection air inflow pipe 214 it is injected in the heat-absorbing chamber 456 with the mixed gas state in the tail end of fuel intake channel 412 to heat-absorbing chamber 456.
Heated mixed gas supplies to the mixing chamber 442 that is formed in the pedestal 440 by second channel 454b in heat-absorbing chamber 456.
Discharged air intake channel 416 and exhaust gas entrance 494 are connected to mixing chamber 442.The discharged air and the waste gas that supply to discharged air intake channel 416 and exhaust gas entrance 494 respectively are injected to the mixed gas in the mixing chamber 442 in the reaction furnace 460 by mixed gas nozzle 466.
Mixed gas by combustion fuel, air and waste gas or the part of described mixed gas is modified into the pre-oxidation material that comprises hydrogen and carbon monoxide, the plasma discharge that produces in described mixed gas helps the oxidation in the oxidation catalyst 60.
Figure 24 is the block diagram of the diesel particulate filter of the 15 exemplary embodiment according to the present invention.
This diesel particulate filter comprises the fuel intake channel 503 that is used to connect fuel tank 30 and plasma burner 500, to supply fuel to plasma burner 500.
Figure 25 is the perspective exploded view of the plasma burner shown in the Figure 24 of the 15 exemplary embodiment according to the present invention, and Figure 26 is the sectional view of this plasma burner along the line X XVI-X X VI of Figure 25.
With reference to Figure 25 and 26, this plasma burner 500 comprises reaction furnace 510, electrode 520 and guiding elements 540.
This reaction furnace 510 is arranged on the direction identical with the flow direction of waste gas in the flue gas leading 40, so that a part of waste gas in the flue gas leading 40 passes through.
Electrode 520 is arranged in the reaction furnace 510, and forms a distance C 10 between the internal surface of the outer surface of electrode 520 and reaction furnace 510, to produce plasma discharge.
Reaction furnace 510 forms preheating passage 531, fuel inlet 532, exhaust gas entrance 533 and flame hole 534.For this reason, reaction furnace 510 comprises exterior cylinder 511 and inner cylinder body 512.
This exterior cylinder 511 forms the outward appearance of reaction furnace 510, to be exposed to the waste gas by flue gas leading 40 inside.Inner cylinder body 512 is connected to the inboard of exterior cylinder 511, to form preheating passage 531 between exterior cylinder 511 and inner cylinder body 512.
This preheating passage 531 is connected to each other fuel intake channel 503 and fuel inlet 532, with the fuel of preheating from fuel tank 30 supplies.This preheating passage 531 is formed on the direction opposite with the flow direction of waste gas in the reaction furnace 510, and forms fuel channel, thereby increases preheating of fuel efficient.
That is to say that for fuel is supplied to exhaust gas entrance 533 sides from flame hole 534 sides, this preheating passage 531 forms the helix structure that advances to exhaust gas entrance 533 sides from flame hole 534 sides.This fuel intake channel 503 is connected to oxidation catalyst 60 sides, and fuel inlet 532 is connected to motor 20 sides.
Fuel inlet 532 forms towards electrode 520, thus when the space that fuel arrives between reaction furnaces 510 and the electrode 520 by preheating passage 531 fuel of supply preheating.This fuel inlet 532 forms and passes inner cylinder body 512.
Exhaust gas entrance 533 is injected into a part of waste gas in the flue gas leading 40 in the plasma burner 500, is injected into fuel and waste gas in the reaction furnace 510 to mix by fuel inlet 532.
Exhaust gas entrance 533 is formed on motor 20 sides of reaction furnace 510, the mixed gas of fuel and waste gas is imported the space between reaction furnace 510 and the electrode 520.That is to say that exhaust gas entrance 533 is formed between the inner cylinder body 512 of electrode 520 and reaction furnace 511, to inject waste gas.
The inner cylinder body 512 that forms the outside of exhaust gas entrance 533 forms the internal surface 512a of cone, and this cone is opening wide when electrode 520 sides extend to exhaust gas entrance 533 sides to a great extent.
Fuel inlet 532 is formed in the internal surface 512a side of this cone, so that preheating passage 531 is connected between reaction furnace 510 and the electrode 520.Therefore, be injected in the fuel inlet 532 fuel with mix by the waste gas after the exhaust gas entrance 533.
By fuel inlet 532 is arranged in exhaust gas entrance 533 sides, no longer need to be used for the independent chamber (not shown) of mix waste gas and fuel.That is to say that the structure that is used for mix waste gas and fuel becomes simple.
In addition, guiding elements 540 is arranged on exhaust gas entrance 533 side places.Because forming, this guiding elements 540 has the diameter bigger, so guiding elements 540 imports exhaust gas entrance 533 with the waste gas in the flue gas leading 40 than exhaust gas entrance 533.This guiding elements 540 allows and will mix more waste gas to the unit of fuel that is injected into fuel inlet 533.
Guiding elements 540 comprises first joiner 541, second joiner 542 and connector 543.This first joiner 541 is connected to the end of exhaust gas entrance 533 sides of reaction furnace 510, i.e. the end 511a of exterior cylinder 511.
Second joiner 542 forms the end 520a that is connected to electrode 520 in first joiner 541.The setting that separates each other of first joiner 541 and second joiner 542 is to form a space each other.
Connector 543 is formed in the described space between first joiner 541 and second joiner 542, exhaust gas entrance 533 is connected to flue gas leading 40 inside.
The waste gas that is directed to guiding elements 540 is injected in the exhaust gas entrance 533 through connector 543, thereby supply to space between electrode 520 and the reaction furnace 510 with the mixed gas state that fuel and waste gas mix, connector 543 is formed between first joiner 541 and second joiner 542.
The space C10 that is formed between reaction furnace 510 and the electrode 520 reduces when extending to the flame hole 534 of enlarging state from exhaust gas entrance 533 sides gradually, increases gradually once more after forming minimum dimension, forms overall dimensions then.
As an example, the described space C10 that is formed between electrode 520 and the reaction furnace 510 forms the first space C11, the second space C12 and the 3rd space C13 with different size.
The first space C11 is formed on exhaust gas entrance 533 side places.Space C10 when the first space C11 extends to flame hole 534 sides, be reduced to gradually littler than the first space C11.
The second space C12 forms minimum dimension in the internal surface 512a of described cone.Space C10 when the second space C12 extends to flame hole 534 sides, increase to gradually bigger than the first space C11.
The 3rd space C13 forms overall dimensions at flame hole 534 side places.
In order to form the first space C11, the second space C12 and the 3rd space C13, electrode 520 forms cylindrical body, with internal surface 512a, and become thinner gradually when extending to flame hole 534 sides in end from the internal surface 512a of this cone corresponding to the cone of inner cylinder body 512.
Figure 27 illustrates the figure of flame from the state of the plasma burner ejection of the 15 exemplary embodiment according to the present invention.
With reference to Figure 27, inject the waste gas and the fuel mix of injecting fuel inlet 532 of exhaust gas entrance 533, and this mixed gas supplies to the space between the inner cylinder body 512 of electrode 520 and reaction furnace 510.
By reaction furnace 510 ground connection also are applied to electrode 520 by voltage applying unit 520a with voltage (V), reaction furnace 510 and electrode 520 are according to being formed on the space C10 generation between them and extinguishing plasma discharge.
According to the generation of plasma discharge with extinguish, described mixed gas according to plasma discharge after the mobile generation flames F exiting L of waste gas.This flames F exiting L is by flame hole 534 ejections, with the waste gas in the further heat exhaust gases pipe 40.
That is to say, the plasma discharge that is created between electrode 520 and the reaction furnace 510 is repeatedly carried out following process: promptly, produce plasma discharge in the part of the space C10 minimum between electrode 520 and reaction furnace 510 (the second space C12), advance to its distance broaden part (the 3rd space C13) time after plasma discharge spreads gradually, extinguish plasma discharge, in the distance part (the second space C12) that narrows down, produce plasma discharge once more, and when advancing to, after plasma discharge spreads gradually, extinguish plasma discharge apart from wide portions (the 3rd space C13).
Mixed gas by combustion fuel and waste gas or the part of described mixed gas is modified into the pre-oxidation material that comprises hydrogen and carbon monoxide, the plasma discharge that produces in described mixed gas helps the oxidation in the oxidation catalyst 60.
In whole structure and effect, the 16 exemplary embodiment is all similar or identical with the 15 exemplary embodiment with the 17 exemplary embodiment.Therefore, in the 16 exemplary embodiment and the 17 exemplary embodiment, will the part different with the 15 exemplary embodiment be described.
Figure 28 is the sectional view of the plasma burner of the 16 exemplary embodiment according to the present invention, and Figure 29 is the bottom view of the plasma burner of Figure 28.
With reference to Figure 28 and 29, guiding elements 550 also is included in the vein (vein) 544 in its internal surface.A plurality of veins 544 are formed in the internal surface of guiding elements 550, to form the eddy current pattern the waste gas that is injected into guiding elements 550 in the inside from flue gas leading 40.
Therefore, the waste gas of the vein 544 by guiding elements 550 supplies to the space between reaction furnace 510 and the electrode 520, causes the eddy current pattern simultaneously.In the case, form connector 533 with overall dimensions and form, so that eddy resistance minimizes.In Figure 29, connector 553 forms along the curvature of guiding elements 550.
The waste gas that has the eddy current pattern can mix with fuel between reaction furnace 510 and electrode 520 effectively.
Figure 30 is the sectional view of the plasma burner of the 17 exemplary embodiment according to the present invention.
With reference to Figure 30, this plasma burner 500 also comprises nozzle 562.This nozzle 562 is arranged in reaction furnace 510 in the face of the space between reaction furnace 510 and the electrode 520, fuel directly is injected into the space between reaction furnace 510 and the electrode 520.
Nozzle 562 can add in the structure of preheating passage 531 and fuel inlet 532 (referring to Figure 30), and can form (not shown) independently under the state that is not formed with preheating passage 531 and fuel inlet 532.
From the fuel supply of nozzle 562 ejection to the space reaction furnace 510 and the electrode 520.Because nozzle 562 is adjacent to the location with guiding elements 550, so the eddy current that fuel can cause by guiding elements 550 mixes with waste gas more effectively.
Figure 31 is the block diagram of the diesel particulate filter of the 18 exemplary embodiment according to the present invention.
This diesel particulate filter comprises that the fuel intake channel 612, the injection air that respectively fuel, injection air and discharged air are supplied to plasma burner 600 flow into pipe 614 and discharged air intake channel 616.
This plasma burner 600 is arranged in flue gas leading 40 between motor 20 and the filter 80.This plasma burner 600 comprises fuel inlet 622, injection air inlet 624, discharged air inlet 626 and will be applied to the flame hole 628 of this diesel particulate filter.
Fuel intake channel 612 is injected into fuel in the plasma burner 600 by connecting fuel inlet 622 and fuel tank 30.Injection air flows into pipe 614 and by injection air inlet 624 is connected to flue gas leading 40 outsides outside air is injected in the plasma burner 600.Being injected into the fuel that injection air that injection air flows into pipe 616 and injection air inlet 624 will be injected into fuel intake channel 612 and fuel inlet 622 is injected in the plasma burner 600.
Discharged air intake channel 616 is injected into outside air in the plasma burner 600 by discharged air inlet 626 is connected to flue gas leading 40 outsides.Be injected into the flame that plasma discharge produced that discharged air intake channel 616 and discharged air inlet 626 discharged air will produce and be sprayed onto flame hole 628 in fuel and Air mixing gas.
Figure 32 is the sectional view of plasma burner shown in Figure 31.
With reference to Figure 32, this plasma burner 600 comprises pedestal 640, electrode 650 and reaction furnace 660.
In pedestal 640, form discharged air inlet 626, and this pedestal 640 comprises and is formed on its inner mixing chamber 642.Electrode 650 is installed in the pedestal 640, and insulator 652 is arranged between electrode 650 and the pedestal 640.This insulating ladder 652 makes electrode 650 and pedestal 640 or reaction furnace 660 electrical insulations.This electrode 650 has following shape: its opposite side that extends to pedestal 640 to be forming maximum extension, and narrows down gradually then.
Fuel intake channel 612 is connected to the sidepiece of reaction furnace 660 by fuel inlet 622, thereby fuel directly is injected in the inner space of reaction furnace 660.Be formed on injection air around the fuel intake channel 612 and flow into pipe 614 and link to each other with reaction furnace 660, and help fuel through fuel inlet 622 injections by injection air inlet 624.
In addition, can replace supplying fuel to the fuel intake channel 612 and the fuel inlet 622 of plasma burner 600 with the injector (not shown) that fuel is directly injected reaction furnace 660.When adopting this injector, can omit injection air and flow into pipe 614 and injection air inlet 624.
Discharged air intake channel 616 is connected to mixing chamber 642.The discharged air that supplies to discharged air intake channel 616 is injected to the mixed gas in the mixing chamber 642 in the reaction furnace 660 by mixed gas nozzle 666.
Although the practical example embodiment in conjunction with current identification has described the present invention, but should be understood that, the invention is not restricted to the disclosed embodiments, on the contrary, various modification and equivalence that the present invention is intended to cover in the spirit and scope that are included in claims are provided with.

Claims (25)

1. diesel particulate filter trap comprises:
Filter, its opposite side at motor is connected to flue gas leading;
Plasma burner, it is arranged in flue gas leading between motor and the filter, and comprises the fuel inlet of fueling and the flame hole of the ejection flame that plasma discharge produced, and heat exhaust gases; And
The fuel intake channel that connects fuel inlet and fuel tank.
2. diesel particulate filter as claimed in claim 1, wherein, described plasma burner comprises at least one exhaust gas entrance, described at least one exhaust gas entrance injects the waste gas of the fuel ejection that is used for being injected into described fuel inlet, and supplies with and be used for waste gas that the mixed gas of described fuel and described waste gas is discharged.
3. diesel particulate filter as claimed in claim 2, wherein, described plasma burner comprises:
The pedestal that comprises mixing chamber, described fuel inlet and exhaust gas entrance are formed in the described mixing chamber;
Electrode, described electrode is installed in the pedestal, be provided with insulator between electrode and pedestal, this electrode portion within it has heat-absorbing chamber, and the fuel that will inject from described fuel inlet and exhaust gas entrance and waste gas mix and are heated into the mixed gas state at this heat-absorbing chamber; And
Reaction furnace, this reaction furnace is spaced apart its inwall and electrode, and form flame hole at the opposite side of pedestal, so that this flame hole is connected to pedestal, this reaction furnace receives mixed gas by the mixed gas nozzle that is connected to described mixing chamber, and the flame that the plasma discharge between electrode and the described inwall is produced in described mixed gas is sprayed onto flame hole.
4. diesel particulate filter as claimed in claim 3, wherein, a plurality of mixed gas nozzles form along circumferencial direction and equidistantly are arranged in the described reaction furnace, and form central direction at the cylindrical body predetermined angle that tilts.
5. diesel particulate filter as claimed in claim 3, wherein, an exhaust gas entrance in the described exhaust gas entrance is connected to the heat-absorbing chamber that is formed on described electrode centers place, and
Described fuel intake channel is arranged to be connected to described heat-absorbing chamber in this exhaust gas entrance.
6. diesel particulate filter as claimed in claim 1, wherein, described plasma burner comprises injection air inlet and at least one exhaust gas entrance, this injection air inlet injects and is used for and will be injected into the air of the fuel ejection of described fuel inlet, this exhaust gas entrance supplies to described fuel and Air mixing gas with waste gas
Wherein, described diesel particulate filter comprises that also the injection air that is connected to described injection air inlet flows into pipe.
7. diesel particulate filter as claimed in claim 6, wherein, described plasma burner comprises:
Pedestal, it comprises mixing chamber, this mixing chamber comprises fuel inlet, injection air inlet and exhaust gas entrance;
Electrode, it is installed in the pedestal, be provided with insulator between electrode and pedestal, this electrode portion within it has heat-absorbing chamber, and the fuel that will inject from described fuel inlet and injection air inlet and air mix and are heated into the mixed gas state at this heat-absorbing chamber; And
Reaction furnace, this reaction furnace is spaced apart its inwall and electrode, and at the opposite side place of pedestal formation flame hole, so that this flame hole is connected to pedestal, this reaction furnace receives mixed gas by the mixed gas nozzle that is connected to described mixing chamber, and the flame that the plasma discharge between electrode and the described inwall is produced in described mixed gas is ejected into this flame hole.
8. diesel particulate filter as claimed in claim 7, wherein, a plurality of mixed gas nozzles form along circumferencial direction and equidistantly are arranged in the described reaction furnace, and form central direction at the cylindrical body predetermined angle that tilts.
9. diesel particulate filter as claimed in claim 7, wherein, described injection air flows into pipe and is connected to the heat-absorbing chamber that is formed on described electrode centers place,
Described fuel intake channel is arranged to be connected to described heat-absorbing chamber in described injection air flows into pipe, and
Described exhaust gas entrance is connected to described mixing chamber.
10. diesel particulate filter as claimed in claim 1, wherein, described plasma burner comprises:
Injection air inlet, its injection are used for and will be injected into the air of the fuel ejection of described fuel inlet; And
The discharged air inlet, it supplies to described fuel and Air mixing gas with discharged air,
Wherein, described diesel particulate filter also comprises
The injection air that is connected to described injection air inlet flows into pipe, and
Be connected to the discharged air intake channel of described discharged air inlet.
11. diesel particulate filter as claimed in claim 10, wherein, described plasma burner comprises:
The pedestal that comprises mixing chamber, described fuel inlet, injection air inlet and discharged air inlet are formed in this mixing chamber;
Electrode, it is installed in the pedestal, be provided with insulator between electrode and pedestal, this electrode portion within it has heat-absorbing chamber, and the fuel that will inject from described fuel inlet and injection air inlet and air mix and are heated into the mixed gas state at this heat-absorbing chamber; And
Reaction furnace, this reaction furnace is spaced apart its inwall and electrode, and at the opposite side place of pedestal formation flame hole, so that this flame hole is connected to pedestal, this reaction furnace receives mixed gas by the mixed gas nozzle that is connected to described mixing chamber, and the flame that the plasma discharge between electrode and the described inwall is produced in described mixed gas is sprayed onto this flame hole.
12. diesel particulate filter as claimed in claim 11, wherein, a plurality of mixed gas nozzles equidistantly form and are arranged in the described reaction furnace along circumferencial direction, and form central direction at the cylindrical body predetermined angle that tilts.
13. diesel particulate filter as claimed in claim 11, wherein, described injection air flows into pipe and is connected to the heat-absorbing chamber that is formed on described electrode centers place,
Described fuel intake channel is arranged to be connected to described heat-absorbing chamber in described injection air flows into pipe, and
Described discharged air intake channel is connected to described mixing chamber.
14. diesel particulate filter as claimed in claim 1, wherein, described plasma burner comprises injection air inlet, discharged air inlet and at least one exhaust gas entrance, described injection air inlet injects and is used for and will be injected into the air of the fuel ejection of described fuel inlet, described discharged air inlet is to described fuel and Air mixing gas supply discharged air, described exhaust gas entrance is supplied with waste gas to mixed gas and discharged air
Wherein, described diesel particulate filter also comprises
The injection air that is connected to described injection air inlet flows into pipe, and
Be connected to the discharged air intake channel of described discharged air inlet.
15. diesel particulate filter as claimed in claim 14, wherein, described plasma burner comprises:
Pedestal, this pedestal comprises mixing chamber, described fuel inlet, injection air inlet, discharged air inlet and exhaust gas entrance are formed in this mixing chamber;
Electrode, it is installed in the pedestal, be provided with insulator between electrode and pedestal, this electrode portion within it has heat-absorbing chamber, and the fuel that will inject from described fuel inlet and discharged air inlet and air mix and are heated into the mixed gas state at this heat-absorbing chamber; And
Reaction furnace, this reaction furnace is spaced apart its inwall and electrode, and form flame hole at the opposite side of pedestal, so that this flame hole is connected to pedestal, this reaction furnace receives mixed gas by the mixed gas nozzle that is connected to described mixing chamber, and the flame that the plasma discharge between electrode and the described inwall is produced in described mixed gas is sprayed onto this flame hole.
16. diesel particulate filter as claimed in claim 15, wherein, a plurality of mixed gas nozzles form along circumferencial direction and equidistantly are arranged in the described reaction furnace, and form central direction at the cylindrical body predetermined angle that tilts.
17. diesel particulate filter as claimed in claim 15, wherein, described injection air flows into pipe and is connected to the heat-absorbing chamber that is formed on described electrode centers place,
Described fuel intake channel is arranged to be connected to described heat-absorbing chamber in described injection air flows into pipe, and
Described discharged air intake channel and discharged air inlet are connected to described mixing chamber.
18. diesel particulate filter as claimed in claim 1, wherein, described plasma burner comprises:
Be arranged on the reaction furnace in the described flue gas leading; And
Electrode, it is arranged in the described reaction furnace, keeps at a distance with the internal surface of described reaction furnace simultaneously,
Wherein, described reaction furnace comprises
Preheating passage, it is connected to described fuel intake channel, the fuel of being supplied with preheating,
Fuel inlet, the space between described reaction furnace and the electrode is arrived in its fuel supply with institute's preheating,
Exhaust gas entrance, it will mix with waste gas by the fuel that described fuel inlet is injected in the described reaction furnace, and this exhaust gas entrance is formed on a side place of described reaction furnace, imports with the mixed gas that will form between described reaction furnace and electrode, to supply with waste gas; And
Flame hole, it is formed on the opposite side place of described reaction furnace, with the flame of ejection by the plasma discharge generation of described mixed gas.
19. diesel particulate filter as claimed in claim 18, wherein, described reaction furnace comprises:
Be exposed to the exterior cylinder in the described flue gas leading; And
Inner cylinder body, it is arranged in the described exterior cylinder, between this inner cylinder body and exterior cylinder, forming preheating passage,
Wherein, at described exhaust gas entrance side place, described inner cylinder body forms the internal surface of the cone that opens wide gradually towards described exhaust gas entrance side.
20. diesel particulate filter as claimed in claim 19, wherein, described fuel inlet is formed on the inboard of described cone, to connect described preheating passage between described reaction furnace and electrode.
21. diesel particulate filter as claimed in claim 18, wherein, described preheating passage is formed on the helix structure that extend towards described exhaust gas entrance side at described flame oral-lateral place.
22. diesel particulate filter as claimed in claim 18 also comprises guiding elements, this guiding elements is arranged on described exhaust gas entrance side place, and diameter is greater than the diameter of described exhaust gas entrance, waste gas is imported to described exhaust gas entrance.
23. diesel particulate filter as claimed in claim 22, wherein, described guiding elements comprises a plurality of veins, and described vein is arranged on the inside of described guiding elements, to form eddy current between described reaction furnace and electrode.
24. diesel particulate filter as claimed in claim 1 also comprises the heat exchanger that is arranged on the described fuel intake channel.
25. diesel particulate filter as claimed in claim 1, wherein, described plasma burner comprises:
Pedestal, this pedestal comprise the discharged air inlet of supplying with discharged air;
Electrode, it is installed in the pedestal, is provided with insulator between electrode and pedestal; And
Reaction furnace, this reaction furnace is spaced apart its inwall and electrode, and forms flame hole at the opposite side place of pedestal, and so that this flame hole is connected to pedestal, this reaction furnace is sprayed onto this flame hole with the flame that the plasma discharge between electrode and the described inwall produces,
Wherein, described fuel inlet is formed on the sidepiece of reaction furnace, and described fuel intake channel is by the inner space and the fuel tank of described fuel inlet coupled reaction stove.
CN2008101299994A 2007-07-30 2008-07-30 Plasma burner and diesel particulate filter trap Active CN101372910B (en)

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KR1020070076387A KR100866327B1 (en) 2007-07-30 2007-07-30 Plasma burner and diesel particulate filter trap
KR1020070078580 2007-08-06
KR1020070078579 2007-08-06
KR10-2007-0078581 2007-08-06
KR10-2007-0078580 2007-08-06
KR1020070078580A KR100866330B1 (en) 2007-08-06 2007-08-06 Plasma burner and diesel particulate filter trap
KR1020070078581A KR100866331B1 (en) 2007-08-06 2007-08-06 Plasma burner and diesel particulate filter trap
KR10-2007-0078579 2007-08-06
KR1020070078579A KR100866328B1 (en) 2007-08-06 2007-08-06 Plasma burner and diesel particulate filter trap
KR1020070078581 2007-08-06
KR10-2007-0133306 2007-12-18
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CN110863885A (en) * 2019-12-04 2020-03-06 宁波楷世环保科技有限公司 Ignition unit and low-energy-consumption diesel engine tail gas treatment system based on ignition unit
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Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3720829A1 (en) 1987-06-24 1989-01-05 Zeuna Staerker Kg METHOD AND DEVICE FOR CLEANING A SOOT FILTER
CA2396281A1 (en) * 2000-06-01 2001-12-06 Blue Planet Co., Ltd. Apparatus for removing soot and nox in exhaust gas from diesel engines
US7093429B1 (en) * 2005-06-01 2006-08-22 Gm Global Technology Operations Inc. Reforming diesel fuel for NOx reduction
KR100622135B1 (en) 2006-05-26 2006-09-11 한국기계연구원 Burner for regeneration of diesel engine particulate filter and diesel engine particulate filter having the same
KR100638639B1 (en) 2006-07-31 2006-10-31 한국기계연구원 A plasma reactor for vaporization and mixing of liquid fuel

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CN102449397A (en) * 2009-06-23 2012-05-09 朱圣镐 Burner using plasma
CN103459797A (en) * 2011-04-15 2013-12-18 罗伯特·博世有限公司 Device and method for heating exhaust gases of an internal combustion engine
CN103459797B (en) * 2011-04-15 2017-04-19 罗伯特·博世有限公司 Device and method for heating exhaust gases of an internal combustion engine
CN103562507A (en) * 2012-05-25 2014-02-05 日野自动车株式会社 Burner for exhaust gas purification device
CN103562507B (en) * 2012-05-25 2014-09-17 日野自动车株式会社 Burner for exhaust gas purification device
CN106414932A (en) * 2014-04-10 2017-02-15 韩国机械研究院 Plasma nozzle and plasma SCR system comprising same
CN106414932B (en) * 2014-04-10 2019-05-10 韩国机械研究院 Plasma nozzle and plasma SCR system with the plasma nozzle
CN106304601A (en) * 2016-09-29 2017-01-04 成都真火科技有限公司 A kind of flame passes flow-generator
CN110863885A (en) * 2019-12-04 2020-03-06 宁波楷世环保科技有限公司 Ignition unit and low-energy-consumption diesel engine tail gas treatment system based on ignition unit
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CN112032735A (en) * 2020-09-08 2020-12-04 大连理工大学 Mobile garbage treatment system and method adopting gas-powered automobile

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