CN203248227U - Pre-heater of diesel engine exhaust aftertreatment device - Google Patents
Pre-heater of diesel engine exhaust aftertreatment device Download PDFInfo
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- CN203248227U CN203248227U CN 201220683502 CN201220683502U CN203248227U CN 203248227 U CN203248227 U CN 203248227U CN 201220683502 CN201220683502 CN 201220683502 CN 201220683502 U CN201220683502 U CN 201220683502U CN 203248227 U CN203248227 U CN 203248227U
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Abstract
The invention relates to a pre-heater of a diesel engine exhaust aftertreatment device capable of increasing exhaust temperature of a diesel vehicle without any ignition system and regenerating a diesel engine exhaust aftertreatment device under an ultra-low temperature below zero. A mandrel is sleeved on a heating bar, wherein one end of the heating bar is exposed out of the mandrel and forms a high-temperature igniting head, and two ends of the mandrel are in sealed connection with end covers at two ends of a diesel gasification chamber. A heat accumulator is sleeved on the mandrel and is located in the diesel gasification chamber, and one end of a combustion chamber is connected with the diesel gasification chamber and is covered on the high-temperature igniting head. An oil-conveying tube is arranged outside the wall of the combustion chamber, and an oil spraying tube part of the oil-conveying tube penetrates through the end covers of the diesel gasification chamber and is located in the diesel gasification chamber. An oil and gas nozzle is formed in an end cover of the diesel gasification chamber at one end of the heating bar.
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 under sub-zero ultralow temperature state, regenerate to the diesel engine exhaust after-treatment device again, the diesel oil secondary pollution can not occur again, belong to the diesel oil igniter and make the 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 installed in the temperature transducer (17) on the burner (14) and being installed in 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 be connected with oil nozzle (12) 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, be transported in the burner (14) through one-way valve (9) and combustion-supporting air pipeline (11).Its deficiency: the one, this diesel engine exhaust emission purifying system purifies used diesel oil 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 Restricted requirement of spark plug own, the therefore poor reliability of igniting; The 2nd, this system can't light 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 produces secondary environmental pollution.
Summary of the invention
Purpose of design: avoid the deficiency in the background technique, design a kind of for promoting the diesel engine truck exhaust temperature, so that the regeneration efficiency of diesel particulate filter and urea selective catalytic reduction reaction efficiency increase substantially under the low exhaust temperature condition, and do not needing to promote the diesel engine truck exhaust temperature under the ignition system condition, can under sub-zero ultralow temperature state in the diesel regenerated exhaust post-treatment apparatus of engine, the diesel engine exhaust after-treatment device pre-heating temperature elevation device of diesel oil secondary pollution can not occur again again.
Design proposal: in order to realize above-mentioned purpose of design.1, the design of the ignition head normality high temperature of heating stick is 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 igniting process satisfies the heating-up temperature of the high temperature ignition head of heating stick and is in the diesel oil gasification combustion and puts when above, with the oily bavin of high-temperature gasification by the nozzle ejection forms mist of oil and with the ignition head of heating stick tactile instantaneous ignition atomized diesel fuel mutually, and make atomized diesel fuel in continual situation, be in the ignition combustion state always, need not the electric ignition system that spark coil, igniter plug formation or electronic circuit consist of thereby reach.Doing like this benefit of bringing is: both broken through traditional temperature-rising method, simplified ignition mechanism, realized the absolute reliable ignition under the diesel motor exhaust cleaning system ultralow temperature state, and avoided lighting a fire when regenerating on interference and impact with the car electronic device.2, plug be enclosed within on the heating stick and on the heating stick end expose design at mandrel outer, be two of technical characteristics of the present utility model.The purpose of doing like this is: owing to the plug 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 the heating stick that exposes in burning cavity consist of the high temperature ignition head.Be positioned at that cover has heat retainer on the plug of diesel oil gasification chamber, oil pipe spray oil pipe section passes diesel oil gasification chamber end cap and is positioned at the diesel oil gasification chamber, the oil gas nozzle pipe is positioned at heating stick high temperature ignition head below and is connected with the diesel oil gasification chamber, when diesel oil is sprayed onto on the heat retainer by the diesel oil in the oil gas spray bar, because the heat that heating stick energising heating produces is directly conducted at cover high-temperature thermal storage body thereon by plug, high-temperature thermal storage body gasifies diesel oil, the oil gas nozzle that forms High Temperature High Pressure atomizing 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 be in the state of burning atomized diesel fuel always, stop until working.3, heating stick is three of technical characteristics of the present utility model by the design that boron nitride barred body and heating wire consist of.The purpose of doing like this is: the one, and boron nitride is the crystal that is made 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 begin 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 with 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, can be in for a long time the state of lighting at 1000 ℃ state fully, and not oxidation by air after finishing burning has been guaranteed the diesel motor exhaust cleaning system 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 the boron nitride as heat generating material to consist of in the heating stick, not only realized high temperature resistant, anticorrosive, heat conduction efficiency is high, and long service life.4, oil tube heating section is equipped with the design of transport pipe or spiral transferring oil coil in the shape of a spiral on structure and the burning cavity wall, is four of technical characteristics of the present utility model.The purpose of doing like this is: the one, because 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 carrying out preheating by the diesel oil in the spiral plate-like oil pipe, make after the preheating diesel oil 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, high temperature diesel oil oil gas can be lighted by the moment that the nozzle on the oil gas nozzle pipe is sprayed onto the high temperature ignition head of heating stick, thereby form good oil, gas, mist, the conversion of combustion has realized need not the purpose that electronics electricity ignition system or electricity fire plug ignition system can regenerative combustions; 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, heat retainer is five of technical characteristics of the present utility model by the design that diameter does not wait small one and large one spacing stack of radiating fin to consist of.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: owing to have a plurality of holes on the wall of the tube chamber that ignites that ignitron consists of, both can guarantee in the tube chamber that ignites that ignitron consists of 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 effectively because the road injustice to the rigid impulse of diesel oil gasification chamber, 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, plug is enclosed within on the heating stick and an end of heating stick exposes at mandrel outer and formation high temperature ignition head, the plug two ends are connected with diesel oil gasification chamber two ends end bracket enclosed, heat retainer is enclosed within on the plug 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, the external spray bar section on the wall of burning cavity and in the transport pipe of transport pipe passes diesel oil gasification chamber end cap and is positioned at the diesel oil gasification chamber, is positioned on the end cap of diesel oil gasification chamber of heating stick one end to have the oil gas nozzle.
Technological scheme 2: a kind of diesel engine exhaust after-treatment device pre-heating temperature elevation device, plug is enclosed within on the heating stick and an end of heating stick exposes at mandrel outer and formation high temperature ignition head, be covered with the ignitron chamber on the high temperature ignition head, the plug two ends are connected with diesel oil gasification chamber two ends end bracket enclosed, heat retainer is enclosed within on the plug 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, the external spray bar section on the wall of burning cavity and in the transport pipe of transport pipe passes diesel oil gasification chamber end cap and is positioned at the diesel oil gasification chamber, is positioned on the end cap of diesel oil gasification chamber of heating stick one end to 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, satisfy emission standards at different levels; The 2nd, first pre-heating oil in the igniting process behind the formation oil gas, directly is sprayed onto on the part that ignites with vaporific by nozzle, and then lights; The 3rd, the utility model is broken through traditional temperature-rising method, simplifies ignition mechanism, has avoided lighting a fire when regenerating on interference and impact with the car electronic device; The 4th, realized diesel engine particulate filter ramp regeneration under low exhaust temperature, and the efficient of urea selective catalytic reduction reaction is improved significantly; The 5th, the regeneration energy consumption is low, only is about 1/4th of background technique.
Description of drawings
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 diesel engine exhaust after-treatment device pre-heating temperature elevation device the second embodiment's structural representation.
Fig. 5 is the gasify structural representation of integrated assembly and combustion-supporting integrated assembly of diesel oil.
Fig. 6 is the gasify structural representation of integrated assembly of diesel oil.
Fig. 7 is the end view of Fig. 1 and Fig. 2.
Embodiment
Embodiment 1: with reference to accompanying drawing 1-4 and Fig. 7.A kind of diesel engine exhaust after-treatment device heat riser, plug 3(sleeve pipe 3) be enclosed within on the heating stick 1 and an end of heating stick 1 exposes outside plug 3 and consists of high temperature ignition head 103, heating stick 103 the other ends are connected with power supply and are provided with ceramic sheath 22, plug 3 two ends are connected with diesel oil gasification chamber 2 two ends end bracket enclosed, such as welded seal, sintering sealing etc. numerous modes.Heat retainer 4 is enclosed within on the plug 3 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, transport pipe 8 external spray bar sections on the wall of burning cavity 12 and in the transport pipe 8 pass diesel oil gasification chamber 2 end caps and are positioned at diesel oil gasification chamber 2, and spacing has oil spout micropore 7 in the described transport pipe 8 spray bar sections.Heating unit in the transport pipe 8 is positioned at burning cavity 12, is positioned on the end cap of diesel oil gasification chamber 2 of heating stick 1 one ends to have oil gas nozzle 10.
Embodiment 1-1: on embodiment 1 basis, described length of exposing the heating stick outside plug 3 is less than 15 millimeters, but do not limit to this.
Embodiment 1-2: on embodiment 1 basis, described transport pipe 8 heating units are spiral spiral structure and external on 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 1-3: on embodiment 1 basis, described heat retainer 4 does not wait small one and large one spacing stack of radiating fin to consist of by diameter.
Embodiment 1-4: on embodiment 1 basis, described diesel oil gasification chamber 2 is made of chamber body and two end caps, two end caps and chamber sealed at both ends connection of body wall.
Embodiment 1-5: on embodiment 1 basis, described burning cavity 12 1 ends are connected or weld with spinning with diesel oil gasification chamber 2 walls.
Embodiment 1-6: on embodiment 1 basis, the other end of described burning cavity 12 is connected with horn mouth 13.
Embodiment 1-7: on embodiment 1 basis, being wrapped with on the chamber body 201 of described diesel oil gasification chamber 2 to overlap on insulating 6 and the insulating 6 has lagging 5.
Embodiment 1-8: on embodiment 1 basis, described heating stick 1 is made of boron nitride barred body 101 and heating wire 102, and heating wire 102 is built in the 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 1-9: on embodiment 1 basis, the chamber that the chamber body 201 of described diesel oil gasification chamber 2 is connected with burning cavity have respectively with it fixedly anchor ear 17 and fixedly anchor ear 17 upper ends be connected with blind flange 18, blind flange hole on blind flange 18 and the flange body 20 is complementary, diesel oil gasification chamber 2 is suspended in the chamber of flange body 20, avoids in the Vehicle Driving Cycle road injustice to diesel oil gasification chamber 2 rigid impulses.
Embodiment 1-10: on embodiment 1 basis, be equipped with heat storing and heat preserving cover 16 between described fixedly anchor ear 17 and chamber body.
Embodiment 1-11: 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 4-7.A kind of diesel engine exhaust after-treatment device heat riser, plug 3(sleeve pipe 3) be enclosed within on the heating stick 1 and an end of heating stick 1 exposes outside plug 3 and consists of high temperature ignition head 103, be covered with ignitron chamber 11 on the high temperature ignition head 103, heating stick 103 the other ends are connected with power supply and are provided with ceramic sheath 22, plug 3 two ends are connected with diesel oil gasification chamber 2 two ends end bracket enclosed, such as welded seal, sintering sealing etc. numerous modes.Heat retainer 4 is enclosed within on the plug 3 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, transport pipe 8 external spray bar sections on the wall of burning cavity 12 and in the transport pipe 8 pass diesel oil gasification chamber 2 end caps and are positioned at diesel oil gasification chamber 2, and spacing has oil spout micropore 7 in the described transport pipe 8 spray bar sections.Heating unit in the transport pipe 8 is positioned at burning cavity 12, is positioned on the end cap of diesel oil gasification chamber 2 of heating stick 1 one ends to have oil gas nozzle 10.The described tube chamber 11 that ignites has pore 14.
Embodiment 2-1: on embodiment 2 basis, described length of exposing the heating stick outside plug 3 is less than 15 millimeters, but do 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 consist of by diameter.
Embodiment 2-3: on embodiment 2 basis, described diesel oil gasification chamber 2 is made 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 are connected or weld with spinning 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 on the chamber body 201 of described diesel oil gasification chamber 2 to overlap on insulating 6 and the insulating 6 has lagging 5.
Embodiment 2-7: on embodiment 2 basis, described heating stick 1 is made of boron nitride barred body 101 and heating wire 102, and heating wire 102 is built in the 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 that the chamber body 201 of described diesel oil gasification chamber 2 is connected with burning cavity have respectively with it fixedly anchor ear 17 and fixedly anchor ear 17 upper ends be connected with blind flange 18, blind flange hole on blind flange 18 and the flange body 20 is complementary, diesel oil gasification chamber 2 is suspended in the chamber of flange body 20, avoids in the Vehicle Driving Cycle 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 3: on the basis of embodiment 1 or 2, a kind of temperature-rising method of diesel engine exhaust after-treatment device pre-heating temperature elevation device, when the diesel motor exhaust cleaning system needs ignition operation, Closing Switch, power supply is to heating stick 1 power supply that is arranged in diesel oil gasification chamber 2, heating stick 1 gets electric rear heating, its heating stick that is positioned at diesel oil gasification chamber 2 forms the high-temperature heating barred body and by the plug 3 that is enclosed within on the high-temperature heating barred body heat of high temperature is conducted to heat retainer 4, the heat of high temperature that heat retainer 4 distributes becomes overfire air with the air heating in the diesel oil gasification chamber 2, and be positioned at outside the diesel oil gasification chamber 2,103 of heating stick high temperature ignition heads in the burning cavity 12 are in the condition of high temperature and with the heating of the air-flow in the burning cavity 12 and by hot air flow burning cavity 12 walls are heated, thermal afterburning burns chamber wall 12 will be arranged in transport pipe 8 diesel oil preheatings on its wall, diesel oil after the preheating is sprayed onto on the heat retainer 4 in the diesel oil gasification chamber 2 by the spray bar section in the transport pipe 8, namely 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 is forming the High Temperature High Pressure mist of oil by the moment that is positioned at oil gas nozzle 10 ejections on the 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 are heated excellent high temperature ignition head 103 pilot combustion when touching mutually moment, 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 heating stick 3 interior tungsten filament 102 power supplies, tungsten filament 102 gets 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 that is enclosed within on the boron nitride barred body 101.
What need to understand is: 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 falls in the protection domain of the present utility model.
Claims (17)
1. diesel engine exhaust after-treatment device pre-heating temperature elevation device, it is characterized in that: plug (3) is enclosed within heating stick (a 1) end upper and heating stick (1) and exposes outside plug (3) and formation high temperature ignition head (103), plug (3) two ends are connected with diesel oil gasification chamber (2) two ends end bracket enclosed, heat retainer (4) is enclosed within plug (3) upward and is positioned at diesel oil gasification chamber (2), burning cavity (12) one ends are connected with diesel oil gasification chamber (2) and cover on the high temperature ignition head (103), transport pipe (8) external on the wall of burning cavity (12) and the spray bar section in the transport pipe (8) pass 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, it is characterized in that: plug (3) is enclosed within heating stick (a 1) end upper and heating stick (1) and exposes outside plug (3) and formation high temperature ignition head (103), be covered with ignitron chamber (11) on the high temperature ignition head (103), plug (3) two ends are connected with diesel oil gasification chamber (2) two ends end bracket enclosed, heat retainer (4) is enclosed within plug (3) upward and is positioned at diesel oil gasification chamber (2), burning cavity (12) one ends are connected with diesel oil gasification chamber (2) and cover on the high temperature ignition head (103), transport pipe (8) external on the wall of burning cavity (12) and the spray bar section in the transport pipe (8) pass 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).
3. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 1 and 2, it is characterized in that: spacing has oil spout micropore (7) in described transport pipe (8) the spray bar section.
4. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 1 and 2, it is characterized in that: the described length of the heating stick outside plug (3) of exposing is less than 15 millimeters.
5. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 2, the described tube chamber that ignites (11) has pore (14).
6. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 1 and 2, it is characterized in that: described transport pipe (8) heating unit is spiral spiral structure and external on burning cavity (12) wall.
7. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 1 and 2 is characterized in that: inlet hole or suction tude (9) are arranged on the tube wall of described burning cavity (12).
8. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 1 and 2 is characterized in that: described heat retainer (4) does not wait small one and large one spacing stack of radiating fin to consist of by diameter.
9. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 1 and 2, it is characterized in that: described diesel oil gasification chamber (2) is made of chamber body and two end caps, two end caps and chamber sealed at both ends connection of body wall.
10. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 1 and 2, it is characterized in that: the other end of described burning cavity (12) is connected with horn mouth (13).
11. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 1 and 2 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) is made of boron nitride barred body (101) and heating wire (102), and heating wire (102) is external 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. diesel engine exhaust after-treatment device pre-heating temperature elevation device according to claim 1 and 2, it is characterized in that: the chamber body (201) of described diesel oil gasification chamber (2) is connected 12 with burning cavity) the chamber have respectively with it fixedly anchor ear (17) and fixedly anchor ear (17) upper end be connected with blind flange (18), blind flange hole on blind flange (18) and the flange body (20) is complementary, 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 201220683502 CN203248227U (en) | 2012-12-12 | 2012-12-12 | Pre-heater of diesel engine exhaust aftertreatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220683502 CN203248227U (en) | 2012-12-12 | 2012-12-12 | Pre-heater of diesel engine exhaust aftertreatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203248227U true CN203248227U (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220683502 Withdrawn - After Issue CN203248227U (en) | 2012-12-12 | 2012-12-12 | Pre-heater of diesel engine exhaust aftertreatment device |
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| Country | Link |
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| CN (1) | CN203248227U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104314A (en) * | 2012-12-12 | 2013-05-15 | 贵州黄帝车辆净化器有限公司 | Pre-heating warmer of diesel engine exhaust aftertreatment device and warming method |
| CN108204263A (en) * | 2016-12-19 | 2018-06-26 | 李仕清 | A kind of tail gas heating burner |
-
2012
- 2012-12-12 CN CN 201220683502 patent/CN203248227U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104314A (en) * | 2012-12-12 | 2013-05-15 | 贵州黄帝车辆净化器有限公司 | Pre-heating warmer of diesel engine exhaust aftertreatment device and warming method |
| CN103104314B (en) * | 2012-12-12 | 2015-04-22 | 贵州黄帝车辆净化器有限公司 | Pre-heating warmer of diesel engine exhaust aftertreatment device and warming method |
| CN108204263A (en) * | 2016-12-19 | 2018-06-26 | 李仕清 | A kind of tail gas heating burner |
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