CN203201626U - Diesel engine exhaust aftertreatment device heater - Google Patents
Diesel engine exhaust aftertreatment device heater Download PDFInfo
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- CN203201626U CN203201626U CN2012206832811U CN201220683281U CN203201626U CN 203201626 U CN203201626 U CN 203201626U CN 2012206832811 U CN2012206832811 U CN 2012206832811U CN 201220683281 U CN201220683281 U CN 201220683281U CN 203201626 U CN203201626 U CN 203201626U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The utility model relates to a diesel engine exhaust aftertreatment device heater which is capable of increasing exhaust temperature of a diesel vehicle with no need of any ignition system and regenerating a diesel engine exhaust aftertreatment device at an ultra-low temperature below zero. A heating bar is of a cylindrical structure and is divided into a terminal part, a heat conduction part and a high-temperature igniting head, wherein the heat conduction part is located in a diesel gasification chamber and is in sealed fit with end covers at two ends of the diesel gasification chamber, the terminal part and the high-temperature igniting head are located outside the end covers of the diesel gasification chamber, the heat conduction part of the heating bar is in sealed connection with the end covers at two ends of the diesel gasification chamber, a heat accumulator is sleeved on the heat conduction part of the heating bar and is located in the diesel gasification chamber, one end of a combustion chamber is connected with the diesel gasification chamber, the combustion chamber is covered on the high-temperature igniting head, an oil gas nozzle is formed in an end cover, located in a combustion chamber cover, of the diesel gasification chamber, an oil spraying tube part of an oil-conveying tube penetrates through the end covers of the diesel gasification chamber and is located in the diesel gasification chamber, and a heating part of the oil-conveying tube is located in the combustion chamber.
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 heating device that can regenerate to the diesel engine exhaust after-treatment device under sub-zero ultralow temperature state belongs to the diesel oil igniter and makes the field again.
Background technique
CN 101178020A, title " diesel engine exhaust emission purifying system ", be 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) is formed, 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 pm emission catcher (20) respectively preceding 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 restriction of the condition 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, under the situation of subzero tens degree, according to realizing the low temperature igniting; 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, make that regeneration efficiency and the urea selective catalytic reduction reaction efficiency of diesel particulate filter increases 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 engine exhaust after-treatment device diesel engine exhaust after-treatment device heating device of diesel oil secondary pollution can not take place 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 under continual situation, be in the ignition combustion state always, need not the electric ignition system that spark coil, igniter plug formation or electronic circuit constitute thereby reach.Doing the benefit of bringing like this 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 to interference and influence with the car electronic device.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: owing to 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 the heating stick that exposes in burning cavity constitute the high temperature ignition head.Be positioned on the heating stick heat-conduction part of diesel oil gasification chamber and be with heat retainer, injection tubing pipe portion passes diesel oil gasification chamber end cap and is positioned at the diesel oil gasification chamber, on the oil gas nozzle pipe diesel oil gasification chamber end cap, when diesel oil is sprayed onto on the heat retainer by the diesel oil in the oil gas spray bar, because the heat that the heat-conduction part of heating stick energising heating produces is directly conducted at cover high-temperature heat accumulation body thereon by the heating stick heat-conduction part, the high-temperature heat accumulation 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 up to work.3, heating stick is three of technical characteristics of the present utility model by the design that boron nitride barred body and heating wire constitute.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 take place with diesel oil not only under the condition of high temperature, and any oxidation can not take place in air, the more important thing is as ignition head of the present utility model the time, can be in the state of lighting for a long time at 1000 ℃ state fully, and not oxidation by air has been guaranteed the diesel motor exhaust cleaning system under the ultralow temperature state finishing burning back, 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 heating is imitated high, the utility model adopts tungsten filament to be compressed in the boron nitride as heat generating material to constitute in the heating stick, not only realized high temperature resistant, anticorrosive, heat conduction efficiency is high, and long service life.4, oil pipe heating unit shape structure and be positioned at the design of burning cavity in the shape of a spiral is four of technical characteristics of the present utility model.The purpose of doing like this is: because oil pipe heating unit shape 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 pipe heating unit, hot flame in its burning cavity can have adequate 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.5, burning cavity is the design that the secondary cavity that do not wait of diameter constitutes and form boss structure, is five of technical characteristics of the present utility model.The purpose of doing like this is: because burning cavity is the secondary cavity that diameter does not wait, when the spiral coil of transport pipe heating unit during near the big chamber wall of burning diameter, spiral coil can not stop the flame of combustion generation, guarantee that combustion flame passes through helical disk smoothly.6, heat retainer is six 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 constitute.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 oily gasification rooms of this High Temperature High Pressure can either make the diesel oil gasification, can avoid diesel oil oil gas to produce coking again, guarantee the nozzles clear on the oil gas nozzle pipe.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 the effect of air heat-insulation and heat-preservation again, has guaranteed diesel motor exhaust cleaning system reliably working.
Technological scheme 1: a kind of diesel engine exhaust after-treatment device heating 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 cooperates with diesel oil gasification chamber two ends end bracket enclosed, terminal portions and high temperature ignition head then are positioned at outside the diesel oil gasification chamber end cap, the heat-conduction part of heating stick is connected with diesel oil gasification chamber two ends end bracket enclosed, 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, burning cavity covers on the high temperature ignition head and is positioned on the end cap of diesel oil gasification chamber of burning cavity cover and has the oil gas nozzle, spray bar portion in the transport pipe passes diesel oil gasification chamber end cap and is positioned at the diesel oil gasification chamber, and the heating unit in the transport pipe is positioned at burning cavity.
Technological scheme 2: a kind of diesel engine exhaust after-treatment device heating 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 cooperates with diesel oil gasification chamber two ends end bracket enclosed, terminal portions and high temperature ignition head then are positioned at outside the diesel oil gasification chamber end cap, be with oil gas mixed combustion tube chamber on the high temperature ignition head and be connected with the diesel oil gasification chamber, on the tube wall of oil gas mixed combustion tube chamber inlet hole or suction tude are arranged, 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 oil gas mixed combustion tube chamber, oil gas mixed combustion tube chamber passes in spray bar portion in the transport pipe, diesel oil gasification chamber end cap and be positioned at the diesel oil gasification chamber, heating unit in the transport pipe is positioned at burning cavity, oil gas mixed combustion tube chamber cover on the high temperature ignition head and oil gas mixed combustion tube chamber cover in the end cap of diesel oil gasification chamber on 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, earlier 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 to interference and influence 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 first kind of embodiment's of diesel engine exhaust after-treatment device heating device 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 end view of Fig. 1.
Fig. 5 is the distribution schematic diagram of heating stick.
Fig. 6 is second kind of embodiment's of diesel engine exhaust after-treatment device heating device structural representation.
Fig. 7 is the gasify structural representation of integrated assembly, the integrated assembly of oil gas mixed combustion and the integrated assembly that burns of diesel oil.
Fig. 8 is the gasify structural representation of integrated assembly and the integrated assembly of oil gas mixed combustion of diesel oil.
Embodiment
Embodiment 1: with reference to accompanying drawing 1-5.A kind of diesel engine exhaust after-treatment device heat riser, 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 cooperates with diesel oil gasification chamber 2 two ends end bracket enclosed, is sealed and matched etc. as high temperature bonding sealing, sintering sealing, interference.103 of terminal portions 105 and high temperature ignition heads are positioned at outside the 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, burning cavity 12 1 ends are connected with diesel oil gasification chamber 2, burning cavity 12 covers on the high temperature ignition head 103 and is positioned on the end cap of diesel oil gasification chamber 2 of burning cavity 12 cover and has oil gas nozzle 10, spray bar portion in the transport pipe 8 passes diesel oil gasification chamber 2 end caps and is positioned at diesel oil gasification chamber 2, and spacing has oil spout micropore 7 in the described transport pipe 8 spray bar portions.Heating unit in the transport pipe 8 is positioned at burning cavity 12.
Embodiment 1-1: on embodiment 1 basis, the length of the high temperature ignition head 103 of described heating stick 1 is less than 15 millimeters, but do not limit to this.
Embodiment 1-2: on embodiment 1 basis, described transport pipe 8 heating units in the shape of a spiral the spiral structure and be positioned at burning cavity 12 and tube wall on inlet hole or suction tude 9 are arranged.
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 constitute 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.Described burning cavity 12 is that the secondary cavity that diameter does not wait constitutes boss structure, and the spiral coil of transport pipe 8 heating units abuts against the big burning cavity wall of diameter, and purpose is to avoid spiral coil to stop burning gallery.
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, be wrapped with on the chamber body 201 of described diesel oil gasification chamber 2 on insulating 6 and the insulating 6 and be with 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 body 201 of described diesel oil gasification chamber 2 and the chamber of burning cavity 12 have respectively on one's body 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 vehicle to travel middle 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 4-8.A kind of diesel engine exhaust after-treatment device heating 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 cooperates with diesel oil gasification chamber 2 two ends end bracket enclosed, as high temperature bonding be sealed and matched, the filler sintering is sealed and matched, interference is sealed and matched etc. numerous modes.103 of terminal portions 105 and high temperature ignition heads are positioned at outside the diesel oil gasification chamber end cap, be with oil gas mixed combustion tube chamber 15 on the high temperature ignition head 103 and be connected with diesel oil gasification chamber 2, inlet hole or suction tude 9 are arranged on the tube wall of oil gas mixed combustion tube chamber 15, 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 oil gas mixed combustion tube chamber 15, oil gas mixed combustion tube chamber 15 passes in spray bar portion in the transport pipe 8, diesel oil gasification chamber 2 end caps and be positioned at diesel oil gasification chamber 2, heating unit in the transport pipe 8 is positioned at burning cavity 12, and spacing has oil spout micropore 7 in the described transport pipe 8 spray bar portions.Oil gas mixed combustion tube chamber 15 cover on the high temperature ignition head 103 and oil gas mixed combustion tube chamber 15 cover in the end cap of diesel oil gasification chamber 2 on have oil gas nozzle 10.
Embodiment 2: 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 2-1: on embodiment 2 basis, described transport pipe 8 heating units are spiral structure and be positioned at burning cavity 12 in the shape of a spiral.
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 constitute 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 spin with oil gas mixed combustion tube chamber 15 walls and are connected.
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, be wrapped with on the chamber body 201 of described diesel oil gasification chamber 2 on insulating 6 and the insulating 6 and be with lagging 5.
Embodiment 2-7: on embodiment 2 basis, described burning cavity 12 diameters are greater than oil gas mixed combustion tube chamber 15 diameters and form boss structure, and the spiral coil of transport pipe 8 heating units is near the burning cavity wall, and purpose is to avoid spiral coil to stop burning gallery.
Embodiment 2-8: 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 2-9: on embodiment 2 basis, the chamber body 201 of described diesel oil gasification chamber 2 and the chamber of burning cavity 12 have respectively on one's body 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 vehicle to travel middle road injustice to diesel oil gasification chamber 2 rigid impulses.
Embodiment 12: on embodiment 1 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, it is characterized in that: 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 the heating of electric back, its heating stick that is positioned at diesel oil gasification chamber 2 forms high temperature heating barred body, the high temperature heating stick conducts heat of high temperature 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 air heating in the burning cavity 12, be arranged in the then burned chamber 12 hot air preheatings of burning cavity 12 transport pipe 8 diesel oil, diesel oil after the preheating is sprayed onto by the spray bar portion in the transport pipe 8 on the heat retainer 4 that is positioned at diesel oil gasification chamber 2 and is namely formed High Temperature High Pressure diesel oil oil gas by heat retainer 4 gasifications, High Temperature High Pressure diesel oil oil gas in the 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, up to end-of-job.
Embodiment 3-1: on embodiment 3 basis, power supply is to being built in tungsten filament 102 power supplies in the heating stick 3, tungsten filament 102 gets electric back 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 understand is: though 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 (18)
1. diesel engine exhaust after-treatment device heating 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 cooperates with diesel oil gasification chamber (2) two ends end bracket enclosed, terminal portions (105) and high temperature ignition head (103) then are positioned at outside the diesel oil gasification chamber end cap, the heat-conduction part (104) that heat retainer (4) is enclosed within heating stick is gone up and is positioned at diesel oil gasification chamber (2), burning cavity (12) one ends are connected with diesel oil gasification chamber (2), burning cavity (12) covers on high temperature ignition head (103) and goes up and be positioned on the end cap of diesel oil gasification chamber (2) of burning cavity (12) cover and have oil gas nozzle (10), spray bar portion in the transport pipe (8) passes diesel oil gasification chamber (2) end cap and is positioned at diesel oil gasification chamber (2), and the heating unit in the transport pipe (8) is positioned at burning cavity (12).
2. diesel engine exhaust after-treatment device heating device according to claim 1 is characterized in that: described transport pipe (8) heating unit in the shape of a spiral the spiral structure and be positioned at burning cavity (12) and tube wall on inlet hole or suction tude (9) are arranged.
3. diesel engine exhaust after-treatment device heating device according to claim 1, it is characterized in that: described burning cavity (12) one ends spin with oil gas mixed combustion tube chamber (15) wall and are connected.
4. diesel engine exhaust after-treatment device heating device according to claim 1, it is characterized in that: the secondary cavity that described burning cavity (12) does not wait for diameter constitutes boss structure, and the spiral coil of transport pipe (8) heating unit abuts against the big burning cavity wall of diameter.
5. diesel engine exhaust after-treatment device heating 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 cooperates with diesel oil gasification chamber (2) two ends end bracket enclosed, terminal portions (105) and high temperature ignition head (103) then are positioned at outside the diesel oil gasification chamber end cap, be with oil gas mixed combustion tube chamber (15) on the high temperature ignition head (103) and be connected with diesel oil gasification chamber (2), inlet hole or suction tude (9) are arranged on the tube wall of oil gas mixed combustion tube chamber (15), the heat-conduction part (104) that heat retainer (4) is enclosed within heating stick is gone up and is positioned at diesel oil gasification chamber (2), burning cavity (12) one ends are connected with oil gas mixed combustion tube chamber (15) and oil gas mixed combustion tube chamber (15) covers on the high temperature ignition head (103), oil gas mixed combustion tube chamber (15) passes in spray bar portion in the transport pipe (8), diesel oil gasification chamber (2) end cap and be positioned at diesel oil gasification chamber (2), heating unit in the transport pipe (8) is positioned at burning cavity (12), has oil gas nozzle (10) on the end cap of the diesel oil gasification chamber (2) in oil gas mixed combustion tube chamber (15) cover.
6. diesel engine exhaust after-treatment device heating device according to claim 1 or 5, it is characterized in that: spacing has oil spout micropore (7) in described transport pipe (8) the spray bar portion.
7. diesel engine exhaust after-treatment device heating device according to claim 1 or 5, it is characterized in that: the length of the high temperature ignition head (103) of described heating stick (1) is less than 15 millimeters.
8. diesel engine exhaust after-treatment device heating device according to claim 1 or 5, it is characterized in that: described heat retainer (4) does not wait small one and large one spacing stack of radiating fin to constitute by diameter.
9. diesel engine exhaust after-treatment device heating device according to claim 1 or 5, 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 heating device according to claim 1 or 5, 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 heating device according to claim 5, it is characterized in that: described burning cavity (12) diameter is greater than oil gas mixed combustion tube chamber (15) diameter and form boss structure, and the spiral coil of transport pipe (8) heating unit is near the burning cavity wall.
12. diesel engine exhaust after-treatment device heating device is characterized in that: be wrapped with on the chamber body (201) of described diesel oil gasification chamber (2) on insulating (6) and the insulating (6) and be with lagging (5) according to claim 1 or 5.
13. diesel engine exhaust after-treatment device heating device according to claim 1 or 5 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 built in the barred body (101).
14. diesel engine exhaust after-treatment device heating device according to claim 13 is characterized in that: described heating wire (102) is tungsten filament, or molybdenum filament.
15. diesel engine exhaust after-treatment device heating device according to claim 13 is characterized in that: described barred body (101) is the boron nitride barred body.
16. diesel engine exhaust after-treatment device heating device according to claim 1 or 5, 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 on one's body 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).
17. diesel engine exhaust after-treatment device heating device according to claim 16 is characterized in that: be equipped with heat storing and heat preserving cover (16) between described fixedly anchor ear (17) and chamber body.
18. diesel engine exhaust after-treatment device heating device according to claim 16 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 |
|---|---|---|---|
| CN2012206832811U CN203201626U (en) | 2012-12-12 | 2012-12-12 | Diesel engine exhaust aftertreatment device heater |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012206832811U CN203201626U (en) | 2012-12-12 | 2012-12-12 | Diesel engine exhaust aftertreatment device heater |
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| CN203201626U true CN203201626U (en) | 2013-09-18 |
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| CN2012206832811U Withdrawn - After Issue CN203201626U (en) | 2012-12-12 | 2012-12-12 | Diesel engine exhaust aftertreatment device heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104313A (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 heater and heating method |
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2012
- 2012-12-12 CN CN2012206832811U patent/CN203201626U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104313A (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 heater and heating method |
| CN103104313B (en) * | 2012-12-12 | 2015-09-16 | 贵州黄帝车辆净化器有限公司 | Diesel engine exhaust aftertreatment device heating device and temperature-rising method |
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Granted publication date: 20130918 Effective date of abandoning: 20150916 |
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