CN203362271U - Preheating temperature increaser of diesel engine exhaust aftertreatment device - Google Patents
Preheating temperature increaser of diesel engine exhaust aftertreatment device Download PDFInfo
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- CN203362271U CN203362271U CN 201220683499 CN201220683499U CN203362271U CN 203362271 U CN203362271 U CN 203362271U CN 201220683499 CN201220683499 CN 201220683499 CN 201220683499 U CN201220683499 U CN 201220683499U CN 203362271 U CN203362271 U CN 203362271U
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Abstract
The utility model relates to a preheating temperature increaser of a diesel engine exhaust aftertreatment device, which can increase diesel vehicle exhaust temperature without an igniting system and can perform regeneration on a diesel engine exhaust aftertreatment device on an ultralow-temperature condition below zero degree. A core rod is sleeved on a heating rod. Furthermore one end of the heating rod is exposed out of the core rod for forming a high-temperature igniting head. Two ends of the core rod are hermetically connected with end caps at two ends of a diesel gasification chamber. A heat accumulator is sleeved on the core rod and is arranged in the diesel gasification chamber. One end of a combustion chamber is connected with the diesel gasification chamber and covers the high-temperature igniting head. A diesel conveying pipe is arranged in the wall of the combustion chamber, and furthermore a diesel spraying pipe part in the diesel conveying pipe passes through the end cap of the diesel gasification chamber and is arranged in the diesel gasification chamber. The end cap at the diesel gasification chamber, which is at the end of the heating rod, is provided with a gas diesel nozzle.
Description
Technical field
The utility model relates to and is not a kind ofly needing can to promote the diesel engine truck exhaust temperature under the ignition system condition, the diesel engine exhaust after-treatment device pre-heating temperature elevation device that can be regenerated to the diesel engine exhaust after-treatment device under sub-zero ultralow temperature state again, belong to the diesel oil igniter and manufacture field.
Background technique
CN 101178020A, title " diesel engine exhaust emission purifying system ", exhaust emissions of diesel engine grain catcher (20) and the mixed gas pipeline (6) by wall-flow filter bodies, combustion-supporting air pipeline (11), electronic control unit (23) forms, it is characterized in that locating to be equipped with the sensor (16) of measuring pressure and being arranged on the temperature transducer (17) on burner (14) and being arranged on respectively pm emission catcher (20) front at engine exhaust port (21), after temperature transducer (18), (19), in the front portion of exhaust emissions grain catcher (20), burner (14) is installed, the spark plug (15) that oil nozzle (12) is installed in this burner (14) and is controlled by spark coil (13), what with oil nozzle (12), be connected is mixed gas pipeline (6), oil pump (1), solenoid valve (4), the diesel oil that will filter through diesel-oil filter element and be input to sparger assembly (2) from high pressure gas holder or the pressurized air through reduction valve (3) decompression that carries compressor and enter oil nozzle (12) by mixed gas pipeline (6), motor (10), drive blower fan (8) and produce the combustion-supporting air with enough pressure and flow that passed through filter core (7) filtration, through one-way valve (9) and combustion-supporting air pipeline (11), be transported in burner (14).Its deficiency: the one, this diesel engine exhaust emission purifying system purifies diesel oil used needs spark coil control spark plug to realize lighting of diesel oil, not only reliability is limited by the formation of circuit structure, and be limited by the restriction of the condition of spark plug own, the therefore poor reliability of igniting; The 2nd, this system can't be lighted for the diesel oil of low-temperature condition, particularly under subzero state, in the situation of subzero tens degree, according to realizing low-temperature ignition; The 3rd, loss of ignition, directly produce two secondary environment Mian and dye.
Summary of the invention
Purpose of design: avoid the deficiency in background technique, design a kind of for promoting the diesel engine truck exhaust temperature, make regeneration efficiency and the urea selective catalytic reduction reaction efficiency of diesel particulate filter under the low exhaust temperature condition increase substantially, and do not needing can to promote the diesel engine truck exhaust temperature under the ignition system condition, again can be at sub-zero diesel engine exhaust after-treatment device pre-heating temperature elevation device.
Design proposal: in order to realize above-mentioned purpose of design.1, the design of the ignition head normality high temperature of heating stick, be one of the utility model technical characteristics.The purpose of doing like this is: the ignition head of heating stick is designed to the high-temperature ignition state, it is a kind of new igniting concept that the utility model is introduced, as long as meeting the heating-up temperature of the high temperature ignition head of heating stick, igniting process puts when above in the diesel oil gasification combustion, the oily bavin of high-temperature gasification is formed to mist of oil and the instantaneous ignition atomized diesel fuel mutually tactile with the ignition head of heating stick by the nozzle ejection, and make atomized diesel fuel in continual situation, always in the ignition combustion state, thereby reach without spark coil, the electric ignition system that igniter plug forms or electronic circuit forms.Doing like this brought benefit is: both broken through traditional temperature-rising method, simplified ignition mechanism, realized the absolute reliable ignition under diesel motor exhaust cleaning system ultralow temperature state, and avoided lighting a fire while regenerating on the interference with the car electronic device and impact.2, heating stick is column structure and the design that is divided into terminal portions, heat-conduction part and high temperature ignition head, is two of technical characteristics of the present utility model.The purpose of doing like this is: because heating stick heat-conduction part two ends are connected with diesel oil gasification chamber two ends end bracket enclosed, and burning cavity one end is connected with the diesel oil gasification chamber, thereby makes exposed heating stick in burning cavity form the high temperature ignition head.Be positioned at cover on the heating stick heat-conduction part of diesel oil gasification chamber heat retainer is arranged, oil pipe spray oil pipe section is through diesel oil gasification chamber end cap and be positioned at the diesel oil gasification chamber, on oil gas nozzle pipe diesel oil gasification chamber end cap, when the diesel oil of diesel oil in the oil gas spray bar is sprayed onto on heat retainer, the heat produced due to the heat-conduction part of heating stick energising heating by the heating stick heat-conduction part directly conduction at cover high-temperature thermal storage body thereon, high-temperature thermal storage body gasifies diesel oil, the oil gas nozzle that forms High Temperature High Pressure atomization oil gas and diesel oil gasification chamber is sprayed onto the moment of high temperature ignition head and is lighted by the high temperature ignition head, make the high temperature ignition head state in the burning atomized diesel fuel always, until work stops.3, the design that heating stick consists of boron nitride barred body and heating wire is three of technical characteristics of the present utility model.The purpose of doing like this is: the one, and boron nitride is the crystal consisted of nitrogen-atoms and boron atom by boron nitride.Have chemical resistance of concrete character, not by inorganic acid and water erosion, only boron nitride just can start oxidation in air more than 1200 ℃ the time, and fusing point reaches 3000 ℃ and just can melt.The utility model is pressed into heating stick by boron nitride, chemical reaction can not occur with diesel oil not only under the condition of high temperature, and any oxidation can not occur in air, the more important thing is as ignition head of the present utility model the time, fully can be at the state of 1000 ℃ for a long time in lighting state, and not oxidation by air after completing burning, guaranteed that the diesel motor exhaust cleaning system is under the ultralow temperature state, can be according to controller instruction regenerative combustion reliably at any time; The 2nd, because tungsten filament not only can anti-3400 ℃ of high temperature, and the heating effect is high, the utility model adopts tungsten filament to be compressed in boron nitride and to form in heating stick as heat generating material, not only realized high temperature resistant, anticorrosive, heat conduction efficiency is high, and long service life.4, oil tube heating section in the shape of a spiral structure and burning cavity wall be built-in with the design of transport pipe or spiral transferring oil coil, be four of technical characteristics of the present utility model.The purpose of doing like this is: the one, due to oil tube heating section structure and be positioned at burning cavity in the shape of a spiral, the time that it can make diesel oil stop in oil pipe increases greatly, therefore when diesel oil passes through spiral helicine oil tube heating section, hot flame in its burning cavity can have the sufficient time to carry out preheating to the diesel oil by spiral plate-like oil pipe, make diesel oil after preheating in the moment that enters the diesel oil gasification chamber by the heat retainer heating and gasifying in the diesel oil gasification chamber, form high pressure, high temperature diesel oil oil gas, this high pressure, the moment that high temperature diesel oil oil gas is sprayed onto the high temperature ignition head of heating stick by the nozzle on the oil gas nozzle pipe can light, thereby form good oil, gas, mist, the conversion of combustion, realized can regenerative combustion without electronics electricity ignition system or electricity fire plug ignition system purpose, the 2nd, the heat of high temperature that the burning cavity burning produces passes to the spiral transferring oil coil by the burning tube wall, and row preheating during to the diesel oil in the spiral transferring oil coil forms high temperature diesel oil.5, the design that heat retainer does not wait small one and large one spacing stack of radiating fin to form by diameter is five of technical characteristics of the present utility model.The purpose of doing like this is: it can increase accumulation of heat and the heat diffusion area of heat retainer effectively, thereby the heat of conduction on core body can be transmitted in the diesel oil gasification chamber fully by heat retainer, make the diesel oil gasification chamber form High Temperature High Pressure diesel oil gasification room, the a little oil gasifications of this High Temperature High Pressure chamber can either make the diesel oil gasification, can avoid again diesel oil oil gas to produce coking, guarantee the nozzles clear on the oil gas nozzle pipe.6, being covered with the design of the tube chamber that ignites of ignitron formation on the high temperature ignition head, is six of technical characteristics of the present utility model.The purpose of doing like this is: on the wall of the tube chamber that ignites formed due to ignitron, have a plurality of holes, both can guarantee in the tube chamber that ignites that ignitron forms the high temperature ignition head required oxygen of gasification diesel oil that ignites by this pore, play again the insulation effect to the high temperature ignition head.7, the diesel oil gasification chamber is suspended in the endoceliac design of flange, is seven of technical characteristics of the present utility model.The purpose of doing like this is: it can either avoid motor vehicle under steam due to the rigid impulse of road injustice to the diesel oil gasification chamber effectively, has again the effect of air heat insulation insulation, has guaranteed diesel motor exhaust cleaning system reliably working.
Technological scheme 1: a kind of diesel engine exhaust after-treatment device pre-heating temperature elevation device, heating stick is column structure and is divided into terminal portions, heat-conduction part and high temperature ignition head, heat-conduction part is positioned at the diesel oil gasification chamber and coordinates with diesel oil gasification chamber two ends end bracket enclosed, terminal portions and high temperature ignition head are positioned at outside diesel oil gasification chamber end cap, heat retainer is enclosed within on the heat-conduction part of heating stick and is positioned at the diesel oil gasification chamber, heat retainer is enclosed within on the heat-conduction part of heating stick and is positioned at the diesel oil gasification chamber, burning cavity one end is connected with the diesel oil gasification chamber and covers on the high temperature ignition head of heating stick, transport pipe be built in the wall of burning cavity and the spray bar section in transport pipe through diesel oil gasification chamber end cap and be positioned at the diesel oil gasification chamber, be positioned on the end cap of diesel oil gasification chamber of heating stick one end and have the oil gas nozzle.
Technological scheme 2: a kind of diesel engine exhaust after-treatment device pre-heating temperature elevation device, heating stick is column structure and is divided into terminal portions, heat-conduction part and high temperature ignition head, heat-conduction part is positioned at the diesel oil gasification chamber and coordinates with diesel oil gasification chamber two ends end bracket enclosed, terminal portions and high temperature ignition head are positioned at outside diesel oil gasification chamber end cap, be covered with the ignitron chamber on the high temperature ignition head, heat retainer is enclosed within on the heat-conduction part of heating stick and is positioned at the diesel oil gasification chamber, burning cavity one end is connected with the diesel oil gasification chamber and covers on the tube chamber that ignites, transport pipe be built in the wall of burning cavity and the spray bar section in transport pipe through diesel oil gasification chamber end cap and be positioned at the diesel oil gasification chamber, be positioned on the end cap of diesel oil gasification chamber of heating stick one end and have the oil gas nozzle.
The utility model is compared with background technique, the one, the utility model is broken through the low temperature limitation of ambient temperature and vehicle exhaust temperature, not influenced by ambient temperature, during in ambient temperature >=-30 ℃, can not only realize igniting regeneration, simultaneously can not produce secondary pollution during this device firing up, meet emission standards at different levels; The 2nd, in igniting process, first pre-heating oil, after forming oil gas, directly be sprayed onto on the part that ignites with vaporific by nozzle, and then light; The 3rd, the utility model is broken through traditional temperature-rising method, simplifies ignition mechanism, has avoided lighting a fire while regenerating on the interference with the car electronic device and impact; The 4th, realized diesel engine particulate filter ramp regeneration under low exhaust temperature, and the efficiency of urea selective catalytic reduction reaction is improved significantly; The 5th, the regeneration energy consumption is low, is only 1/4th left and right of background technique.
The accompanying drawing explanation
Fig. 1 is diesel engine exhaust after-treatment device pre-heating temperature elevation device the first embodiment's structural representation.
Fig. 2 is the gasify structural representation of integrated assembly and combustion-supporting integrated assembly of diesel oil.
Fig. 3 is the gasify structural representation of integrated assembly of diesel oil.
Fig. 4 is the function distribution schematic diagram of heating stick.
Fig. 5 is diesel engine exhaust after-treatment device pre-heating temperature elevation device the second embodiment's structural representation.
Fig. 6 is the gasify structural representation of integrated assembly and combustion-supporting integrated assembly of diesel oil.
Fig. 7 is the gasify structural representation of integrated assembly of diesel oil.
Fig. 8 is the end view of Fig. 1.
Embodiment
Embodiment 1: with reference to accompanying drawing 1-4 and Fig. 7.A kind of diesel engine exhaust after-treatment device pre-heating temperature elevation device, heating stick 1 is for column structure and be divided into terminal portions 105, heat-conduction part 104 and high temperature ignition head 103, heat-conduction part 104 is positioned at diesel oil gasification chamber 2 and coordinates with diesel oil gasification chamber 2 two ends end bracket enclosed, numerous modes such as bonding as elevated-temperature seal, packing seal sintering.103 of terminal portions 105 and high temperature ignition heads are positioned at outside diesel oil gasification chamber end cap, heat retainer 4 is enclosed within on the heat-conduction part 104 of heating stick and is positioned at diesel oil gasification chamber 2, heat retainer 4 is enclosed within on the heat-conduction part 104 of heating stick and is positioned at diesel oil gasification chamber 2, burning cavity 12 1 ends are connected with diesel oil gasification chamber 2 and cover on the high temperature ignition head 103 of heating stick, transport pipe 8 be built in the wall of burning cavity 12 and the spray bar section in transport pipe 8 through diesel oil gasification chamber 2 end caps and be positioned at diesel oil gasification chamber 2, in described transport pipe 8 spray bar sections, spacing has oil spout micropore 7.Be positioned on the end cap of diesel oil gasification chamber 2 of heating stick 1 one ends and have oil gas nozzle 10.
Embodiment 1-1: on embodiment 1 basis, the length of described exposed heating stick outside plug 3 is less than 15 millimeters, but does not limit to this.
Embodiment 1-2: on embodiment 1 basis, described transport pipe 8 heating units are spiral spiral structure and are built in burning cavity 12 walls.
Embodiment 1-3: on embodiment 1 basis, inlet hole or suction tude 9 are arranged on the tube wall of described burning cavity 12.
Embodiment 1-4: on embodiment 1 basis, described heat retainer 4 does not wait small one and large one spacing stack of radiating fin to form by diameter.
Embodiment 1-5: on embodiment 1 basis, described diesel oil gasification chamber 2 consists of chamber body and two end caps, two end caps and chamber sealed at both ends connection of body wall.
Embodiment 1-6: on embodiment 1 basis, described burning cavity 12 1 ends with spin and be connected or weld with diesel oil gasification chamber 2 walls.
Embodiment 1-7: on embodiment 1 basis, the other end of described burning cavity 12 is connected with horn mouth 13.
Embodiment 1-8: on embodiment 1 basis, being wrapped with cover on insulating 6 and insulating 6 on the chamber body 201 of described diesel oil gasification chamber 2 has lagging 5.
Embodiment 1-9: on embodiment 1 basis, described heating stick 1 consists of boron nitride barred body 101 and heating wire 102, and heating wire 102 is built in barred body 101.Described heating wire 102 is tungsten filament, or molybdenum filament, or other heating wire.Described barred body 101 is the boron nitride barred body.
Embodiment 1-10: on embodiment 1 basis, the chamber body 201 of described diesel oil gasification chamber 2 and the chamber of burning cavity 12 have respectively with it fixedly anchor ear 17 and fixedly anchor ear 17 upper ends with blind flange 18, be connected, blind flange 18 is complementary with the blind flange hole on flange body 20, diesel oil gasification chamber 2 is suspended in the chamber of flange body 20, avoids in Vehicle Driving Cycle the road injustice to diesel oil gasification chamber 2 rigid impulses.
Embodiment 1-11: on embodiment 1 basis, be equipped with heat storing and heat preserving cover 16 between described fixedly anchor ear 17 and chamber body.
Embodiment 1-12: on embodiment 1 basis, described blind flange 18 is groove shape structure and the groove mouth is provided with joint employing sealing gasket 21 sealings between cover plate 19 and blind flange 18 and cover plate.
Embodiment 2: with reference to accompanying drawing 4-8.A kind of diesel engine exhaust after-treatment device pre-heating temperature elevation device, heating stick 1 is for column structure and be divided into terminal portions 105, heat-conduction part 104 and high temperature ignition head 103, heat-conduction part 104 is positioned at diesel oil gasification chamber 2 and coordinates with diesel oil gasification chamber 2 two ends end bracket enclosed, numerous modes such as bonding as elevated-temperature seal, packing seal sintering.103 of terminal portions 105 and high temperature ignition heads are positioned at outside diesel oil gasification chamber end cap, be covered with ignitron chamber 11 on high temperature ignition head 103, heat retainer 4 is enclosed within on the heat-conduction part 104 of heating stick and is positioned at diesel oil gasification chamber 2, burning cavity 12 1 ends are connected with diesel oil gasification chamber 2 and cover on the tube chamber 11 that ignites, transport pipe 8 be built in the wall of burning cavity 12 and the spray bar section in transport pipe 8 through diesel oil gasification chamber 2 end caps and be positioned at diesel oil gasification chamber 2, in described transport pipe 8 spray bar sections, spacing has oil spout micropore 7, be positioned on the end cap of diesel oil gasification chamber 2 of heating stick 1 one ends and have oil gas nozzle 10.
Embodiment 2-1: on embodiment 2 basis, the length of described exposed heating stick outside plug 3 is less than 15 millimeters, but does not limit to this.
Embodiment 2-2: on embodiment 2 basis, described heat retainer 4 does not wait small one and large one spacing stack of radiating fin to form by diameter.
Embodiment 2-3: on embodiment 2 basis, described diesel oil gasification chamber 2 consists of chamber body and two end caps, two end caps and chamber sealed at both ends connection of body wall.
Embodiment 2-4: on embodiment 2 basis, described burning cavity 12 1 ends with spin and be connected or weld with diesel oil gasification chamber 2 walls.
Embodiment 2-5: on embodiment 2 basis, the other end of described burning cavity 12 is connected with horn mouth 13.
Embodiment 2-6: on embodiment 2 basis, being wrapped with cover on insulating 6 and insulating 6 on the chamber body 201 of described diesel oil gasification chamber 2 has lagging 5.
Embodiment 2-7: on embodiment 2 basis, described heating stick 1 consists of boron nitride barred body 101 and heating wire 102, and heating wire 102 is built in barred body 101.Described heating wire 102 is tungsten filament, or molybdenum filament, or other heating wire.Described barred body 101 is the boron nitride barred body.
Embodiment 2-8: on embodiment 2 basis, the chamber body 201 of described diesel oil gasification chamber 2 and the chamber of burning cavity 12 have respectively with it fixedly anchor ear 17 and fixedly anchor ear 17 upper ends with blind flange 18, be connected, blind flange 18 is complementary with the blind flange hole on flange body 20, diesel oil gasification chamber 2 is suspended in the chamber of flange body 20, avoids in Vehicle Driving Cycle the road injustice to diesel oil gasification chamber 2 rigid impulses.
Embodiment 2-9: on embodiment 2 basis, be equipped with heat storing and heat preserving cover 16 between described fixedly anchor ear 17 and chamber body.
Embodiment 2-10: on embodiment 2 basis, described blind flange 18 is groove shape structure and the groove mouth is provided with joint employing sealing gasket 21 sealings between cover plate 19 and blind flange 18 and cover plate.
Embodiment 2-11: on embodiment 2 basis, the described tube chamber 11 that ignites has pore 14, and purpose is given tube chamber 11 oxygen supplys of igniting.
Embodiment 3: on the basis of embodiment 1 or 2, a kind of temperature-rising method of diesel engine exhaust after-treatment device, when the diesel motor exhaust cleaning system needs ignition operation, close switch, power supply is to heating stick 1 power supply that is arranged in diesel oil gasification chamber 2, heating stick 1 obtains electric rear heating, the heating stick heat-conduction part 104 that is positioned at diesel oil gasification chamber 2 produces high temperature and to being enclosed within heat retainer 4 on high-temperature heating rod heat-conduction part 104, the heat of high temperature that heat retainer 4 distributes becomes overfire air by the air heating in diesel oil gasification chamber 2, and be positioned at outside diesel oil gasification chamber 2, 103 of heating stick high temperature ignition heads in burning cavity 12 are in the condition of high temperature and by the air heating in burning cavity 12, be arranged in the burned chamber 12 hot air preheatings of burning cavity 12 wall transport pipe 8 diesel oil, the spray bar section of diesel oil after preheating in transport pipe 8 is sprayed onto on the heat retainer 4 in diesel oil gasification chamber 2, formed High Temperature High Pressure diesel oil oil gas by heat retainer 4 gasifications, the High Temperature High Pressure diesel oil oil gas that is positioned at diesel oil gasification chamber 2 forms the High Temperature High Pressure mist of oil by the moment that is positioned at oil gas nozzle 10 ejections on diesel oil gasification chamber 2 under the effect of high-pressure oil gas, this High Temperature High Pressure mist of oil and heating stick high temperature ignition head 103 mutually tactile the time moment be heated excellent high temperature ignition head 103 pilot combustion, air enters burning cavity 12 by tracheae 9, thereby reach the burning regeneration to particulate filter under the diesel engine low exhaust temperature, until end-of-job.
Embodiment 3-1: on embodiment 3 basis, power supply is to being built in interior tungsten filament 102 power supplies of heating stick 3, tungsten filament 102 obtains electric rear heating heating boron nitride barred body 101, and the boron nitride barred body 101 after being heated conducts heat to heat retainer 4 by the plug 3 be enclosed within on boron nitride barred body 101.
Need to understand: although above-described embodiment is to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; rather than to the restriction of the utility model mentality of designing; any combination, increase or modification that does not exceed the utility model mentality of designing, all fall in protection domain of the present utility model.
Claims (17)
1. a diesel engine exhaust after-treatment device pre-heating temperature elevation device, it is characterized in that: heating stick (1) is for column structure and be divided into terminal portions (105), heat-conduction part (104) and high temperature ignition head (103), heat-conduction part (104) is positioned at diesel oil gasification chamber (2) and coordinates with diesel oil gasification chamber (2) two ends end bracket enclosed, terminal portions (105) and high temperature ignition head (103) are positioned at outside diesel oil gasification chamber end cap, it is upper and be positioned at diesel oil gasification chamber (2) that heat retainer (4) is enclosed within the heat-conduction part (104) of heating stick, burning cavity (12) one ends are connected with diesel oil gasification chamber (2) and cover on the high temperature ignition head (103) of heating stick, transport pipe (8) be built in the wall of burning cavity (12) and the spray bar section in transport pipe (8) through diesel oil gasification chamber (2) end cap and be positioned at diesel oil gasification chamber (2), be positioned on the end cap of diesel oil gasification chamber (2) of heating stick (1) one end and have oil gas nozzle (10).
2. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 1, it is characterized in that: the described tube chamber that ignites (11) has pore (14).
3. a diesel engine exhaust after-treatment device pre-heating temperature elevation device, it is characterized in that: heating stick (1) is for column structure and be divided into terminal portions (105), heat-conduction part (104) and high temperature ignition head (103), heat-conduction part (104) is positioned at diesel oil gasification chamber (2) and coordinates with diesel oil gasification chamber (2) two ends end bracket enclosed, terminal portions (105) and high temperature ignition head (103) are positioned at outside diesel oil gasification chamber end cap, be covered with ignitron chamber (11) on high temperature ignition head (103), it is upper and be positioned at diesel oil gasification chamber (2) that heat retainer (4) is enclosed within the heat-conduction part (104) of heating stick, burning cavity (12) one ends are connected with diesel oil gasification chamber (2) and cover on the tube chamber that ignites (11), transport pipe (8) be built in the wall of burning cavity (12) and the spray bar section in transport pipe (8) through diesel oil gasification chamber (2) end cap and be positioned at diesel oil gasification chamber (2), be positioned on the end cap of diesel oil gasification chamber (2) of heating stick (1) one end and have oil gas nozzle (10).
4. according to the described diesel engine exhaust after-treatment device of claim 1 or 3 pre-heating temperature elevation device, it is characterized in that: in described transport pipe (8) spray bar section, spacing has oil spout micropore (7).
5. according to the described diesel engine exhaust after-treatment device of claim 1 or 3 pre-heating temperature elevation device, it is characterized in that: the length of described exposed heating stick outside plug (3) is less than 15 millimeters.
6. according to the described diesel engine exhaust after-treatment device of claim 1 or 3 pre-heating temperature elevation device, it is characterized in that: described transport pipe (8) heating unit is spiral spiral structure and is built in burning cavity (12) wall.
7. according to the described diesel engine exhaust after-treatment device of claim 1 or 3 pre-heating temperature elevation device, it is characterized in that: inlet hole or suction tude (9) are arranged on the tube wall of described burning cavity (12).
8. according to the described diesel engine exhaust after-treatment device of claim 1 or 3 pre-heating temperature elevation device, it is characterized in that: described heat retainer (4) does not wait small one and large one spacing stack of radiating fin to form by diameter.
9. according to the described diesel engine exhaust after-treatment device of claim 1 or 3 pre-heating temperature elevation device, it is characterized in that: described diesel oil gasification chamber (2) consists of chamber body and two end caps, two end caps and chamber sealed at both ends connection of body wall.
10. according to the described diesel engine exhaust after-treatment device of claim 1 or 3 pre-heating temperature elevation device, it is characterized in that: the other end of described burning cavity (12) is connected with horn mouth (13).
11., according to the described diesel engine exhaust after-treatment device of claim 1 or 3 pre-heating temperature elevation device, it is characterized in that: being wrapped with the upper cover of insulating (6) and insulating (6) on the chamber body (201) of described diesel oil gasification chamber (2) has lagging (5).
12. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 1 and 2 is characterized in that: described heating stick (1) consists of boron nitride barred body (101) and heating wire (102), and heating wire (102) is built in barred body (101).
13. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 12 is characterized in that: described heating wire (102) is tungsten filament, or molybdenum filament.
14. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 12 is characterized in that: described barred body (101) is the boron nitride barred body.
15. according to the described diesel engine exhaust after-treatment device of claim 1 or 3 pre-heating temperature elevation device, it is characterized in that: the chamber body (201) of described diesel oil gasification chamber (2) and the chamber of burning cavity (12) have respectively with it fixedly anchor ear (17) and fixedly anchor ear (17) upper end with blind flange (18), be connected, blind flange (18) is complementary with the blind flange hole on flange body (20), and diesel oil gasification chamber (2) is suspended in the chamber of flange body (20).
16. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 15, is characterized in that: be equipped with heat storing and heat preserving cover (16) between described fixedly anchor ear (17) and chamber body.
17. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 15 is characterized in that: described blind flange (18) is groove shape structure and the groove mouth is provided with cover plate (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683499 CN203362271U (en) | 2012-12-12 | 2012-12-12 | Preheating temperature increaser of diesel engine exhaust aftertreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683499 CN203362271U (en) | 2012-12-12 | 2012-12-12 | Preheating temperature increaser of diesel engine exhaust aftertreatment device |
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| Publication Number | Publication Date |
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| CN203362271U true CN203362271U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220683499 Withdrawn - After Issue CN203362271U (en) | 2012-12-12 | 2012-12-12 | Preheating temperature increaser of diesel engine exhaust aftertreatment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104320A (en) * | 2012-12-12 | 2013-05-15 | 贵州黄帝车辆净化器有限公司 | Diesel engine exhaust aftertreatment device pre-heater and heating method |
| CN103104316A (en) * | 2012-12-12 | 2013-05-15 | 贵州黄帝车辆净化器有限公司 | Diesel engine exhaust after-treatment device preheating heating-up device and heating-up method |
-
2012
- 2012-12-12 CN CN 201220683499 patent/CN203362271U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104320A (en) * | 2012-12-12 | 2013-05-15 | 贵州黄帝车辆净化器有限公司 | Diesel engine exhaust aftertreatment device pre-heater and heating method |
| CN103104316A (en) * | 2012-12-12 | 2013-05-15 | 贵州黄帝车辆净化器有限公司 | Diesel engine exhaust after-treatment device preheating heating-up device and heating-up method |
| CN103104320B (en) * | 2012-12-12 | 2015-03-25 | 贵州黄帝车辆净化器有限公司 | Diesel engine exhaust aftertreatment device pre-heater and heating method |
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