CN103867264B - High temperature cleaning plant, purification system and the purification method of diesel engine vent gas purification - Google Patents
High temperature cleaning plant, purification system and the purification method of diesel engine vent gas purification Download PDFInfo
- Publication number
- CN103867264B CN103867264B CN201410095823.7A CN201410095823A CN103867264B CN 103867264 B CN103867264 B CN 103867264B CN 201410095823 A CN201410095823 A CN 201410095823A CN 103867264 B CN103867264 B CN 103867264B
- Authority
- CN
- China
- Prior art keywords
- heating
- working chamber
- high temperature
- igniter
- oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000746 purification Methods 0.000 title claims abstract description 45
- 238000004140 cleaning Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 112
- 230000007246 mechanism Effects 0.000 claims abstract description 97
- 239000007789 gas Substances 0.000 claims abstract description 96
- 239000000446 fuel Substances 0.000 claims abstract description 45
- 239000002283 diesel fuel Substances 0.000 claims abstract description 31
- 230000000694 effects Effects 0.000 claims abstract description 13
- 230000008676 import Effects 0.000 claims abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000001301 oxygen Substances 0.000 claims abstract description 9
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 9
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 44
- 239000000203 mixture Substances 0.000 claims description 21
- 238000005338 heat storage Methods 0.000 claims description 14
- 239000013618 particulate matter Substances 0.000 claims description 14
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 12
- 239000012212 insulator Substances 0.000 claims description 12
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 12
- 238000007789 sealing Methods 0.000 claims description 7
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 4
- 206010037660 Pyrexia Diseases 0.000 claims description 3
- 239000010705 motor oil Substances 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 2
- 230000001914 calming effect Effects 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract description 2
- 241000196324 Embryophyta Species 0.000 description 17
- 235000013339 cereals Nutrition 0.000 description 15
- 238000010586 diagram Methods 0.000 description 10
- 230000006870 function Effects 0.000 description 10
- 230000008929 regeneration Effects 0.000 description 7
- 238000011069 regeneration method Methods 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 239000000654 additive Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 239000004202 carbamide Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910003978 SiClx Inorganic materials 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000008450 motivation Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 230000007096 poisonous effect Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000001755 vocal effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 235000006708 antioxidants Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000010710 diesel engine oil Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 239000002314 hair substitute Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
Landscapes
- Exhaust Gas After Treatment (AREA)
Abstract
The present invention relates to a kind of diesel engine vent gas to purify heat riser, purification system and purification method, the heat riser, including working chamber and heating chamber, the outlet of working chamber is fixedly connected with the import of heating chamber, the working chamber side is fixed with air hose, the fuel switching mechanism for liquid diesel to be converted into high-pressure gaseous diesel oil is fixed on the inside of working chamber end cap, it is also fixed in the cavity wall of the nozzle opening front end of fuel switching mechanism for the igniter that high-pressure gaseous is diesel oil ignited in the working chamber, the high temperature guiding mechanism for mixing diesel engine vent gas and the high-temperature gas of the diesel oil ignited formation of high-pressure gaseous is fixed with inside the outlet end of the heating chamber.Present invention utilizes individual igniter and heating sources, burn more abundant, cleaning effect is more stable, the gas temperature for keeping particle cleaning required of spiral shape high temperature guiding mechanism is uniformly spread, burning can also be kept more abundant, to promote cleaning effect using the remnant oxygen in exhaust gas.
Description
Technical field
The present invention relates to a kind of high temperature cleaning plant, purification system and purification methods for vehicle tai-gas clean-up, more
Body says, it be related to it is a kind of can under various changeable complex working conditions, to the poisonous and harmful substance in diesel engine vent gas carry out from
Dynamic cleaning, reaches high temperature cleaning plant, purification system and the purification method of national emission standard.
Background technique
Currently, diesel engine vent gas processing technique relates generally to following technology: selective catalytic reduction (SCR), granule capturing
The scale of the multiple technologies such as device, these technologies, various degrees promotes problem:
Selective catalytic reduction (SCR) technology: being diesel vehicle upgrading IV discharge standard of state using the urea tank of SCR technology
One of the technology of middle comparative maturity.But exhaust gas cleaner will normally play a role, and need periodically to give diesel vehicle addition urea, one
Aspect use cost increases, in addition, urea addition is inconvenient, and in the case where lacking supervision, if user is to save money private
From dismounting, then IV discharge standard of state also becomes empty talk；Still more, if IV vehicle of state using after-treatment system cannot timing
Urea is added, the pollution caused by air is even greater than the vehicle of III standard of state.In addition, during processing, if started
The temperature of machine exhaust pipe is lower than catalytic reductive conditions temperature, will cause the secondary pollution of exhaust instead.
DPF is the exhaust gas from diesel vehicle administration way of international mature, and DPF is exactly diesel vehicle grain catcher, phase after installation
When in can at least collect 95% particulate matter to " N95 " mask, this trap conservative estimation on diesel vehicle band.DPF is caught
It needs to clear up the pollutant of trapping after collection exhaust pollutant, manner of cleaning up generally has passive regeneration (cleaning) and active again
It is raw, it is limited to the development of regeneration techniques, at present based on passive regeneration, passive regeneration mode needs artificial regular dismounting to get off with high
Pressure air is blown or high temperature furnace burns cleaning, fairly cumbersome.Current initiative regeneration mode in order to guarantee by DPF trap particulate matter
It can be cleared up completely, the redox temperature of particulate matter to be made to be reduced to 450 degree or so by 600~650 degree, and this is needed constantly
Specialist additive is added to realize, therefore the initiative regeneration mode is there are system complex, use cost is high and working service is inconvenient
Etc. the factor for being unfavorable for promoting.
Date of publication on May 15th, 2013, the Chinese invention patent of publication No. CN103104317A disclose a kind of diesel oil hair
Motivation exhaust aftertreatment and temperature-rising method, the heat riser have following deficiency: 1, high temperature ignition head is located at heat-conduction part
The reliability of tail end, igniting is poor；2, there is still a need for additives to be just able to achieve actively again for the processing system constituted with the heat riser
Raw, higher operating costs easily causes secondary pollution；3, the heat riser is set to exhaust pipe center, causes exhaust resistance big, easily leads
Cause exhaust unsmooth；4, heat riser maintenance, replacement disassembly trouble.
Summary of the invention
It is an object of the invention to solve the deficiencies in the prior art, a kind of structurally reasonable, igniting high reliablity, maintenance are provided
Simple diesel engine vent gas high temperature cleaning plant is dismantled in replacement.
It is another object of the present invention to provide one kind to be not necessarily to additive, realizes the pollutant trapped to grain catcher
Carry out the diesel engine vent gas purification system and purification method automatically cleared up in real time.
The technical solution adopted by the present invention to solve the technical problems is:
For the high temperature cleaning plant of diesel engine vent gas purification, including working chamber and heating chamber, the outlet of working chamber and liter
The import of warm chamber is fixedly connected, and the working chamber side is fixed with tracheae, is fixed in working chamber for by liquid diesel
It is converted into the fuel switching mechanism of high-pressure gaseous diesel oil, the chamber of the nozzle opening front end of fuel switching mechanism is located in the working chamber
It is also fixed on wall for the igniter that high-pressure gaseous is diesel oil ignited, is fixed with use inside the outlet end of the heating chamber
In the high temperature guiding mechanism being oriented to the high-temperature gas of the diesel oil ignited formation of high-pressure gaseous.Liquid diesel is converted by fuel
Mechanism is converted into high-pressure gaseous diesel oil, the present invention in order to solve the problems, such as heat riser igniting poor reliability in the prior art,
An igniter, the contact surface of the igniter and gas mixture is individually fixedly installed in the nozzle opening front end of fuel switching mechanism
Product is big, and high reliablity of lighting a fire, the high-temperature gas after ignition can be mixed preferably after high temperature guiding mechanism, high
In addition the more uniform temperature of wet body can also make full use of the remnant oxygen in exhaust gas, keep high-temperature gas burning more abundant, with
Further increase the temperature of high-temperature gas.
In short, the reliability of igniting is substantially increased present invention utilizes individual igniter and heating source, it is spiral
High temperature guiding mechanism keeps high-temperature gas burning more abundant, and cleaning effect is more stable, makes in the diesel engine vent gas being captured
Gas temperature needed for particulate matter cleaning is uniformly spread, moreover it is possible to and using the remnant oxygen in exhaust gas, keep burning more abundant, thus
Promote cleaning effect.
Preferably, the working chamber is located at the outside of heating chamber, the junction formation angle of working chamber and heating chamber, institute
The degree for stating angle is 27~67 °.Working chamber is placed in the outside of heating chamber, and the fuel switching mechanism in working chamber is also located in bavin
The outside of oil machine exhaust pipe greatly reduces the exhaust resistance of diesel engine, and working chamber and heating chamber are in 27-67 ° of acute angle,
Enter heating chamber along Diesel Engine Exhaust Pipe discharge directions after igniting by the high-pressure gaseous diesel oil that working chamber sprays, avoids straight
It connects collision and causes to influence cleaning effect to air-flow larger interference.
Preferably, the inside of the working chamber and heating chamber junction is also fixed along the direction that working chamber cavity wall extends and is set
There is flow-stopping plate.The effect of flow-stopping plate is the adverse effect avoided when diesel engine vent gas impact in front end works to igniter.
Preferably, the tracheae is fixed at the outside of working chamber end cap, the fuel switching mechanism fixed setting
In the inside of working chamber end cap, end cap and the cavity wall of working chamber are detachably connected.The present invention is holding fuel switching mechanism assembly
It covers, end cap and cavity wall are detachably connected by modes such as pipe screw threads, and installation, maintenance, replacement are high-efficient.
Preferably, the fuel switching mechanism include oil inlet pipe, heating source, upper end cover, with close under nozzle opening
Sealing end covers, and forms cavity between upper and lower end cover, and wherein the heating part of heating source is set in the cavity, the length of heating part
Degree is less than the length of cavity, and the outside of heating part is socketed with heat carrier, and the heat carrier is by heat carrier ontology and several cooling fins
It constitutes, wherein heat carrier is integrally formed by heat carrier ontology and several cooling fins, and thermal conducting sleeve is equipped with outside heat carrier, described to lead
Be additionally provided with heat insulator between thermal sleeve and upper and lower end cover, the oil outlet of the oil inlet pipe pass through upper end cover or under it is close
Sealing end lid enters in cavity, the junction sealing of oil inlet pipe and upper end cover or lower end cover.Heating source of the invention is only
Heating function is played, heating source is sealed in the cavity that upper and lower end cover is formed, and one end of heating source is fixed, the other end
For free end, assembly, disassembly convenient for heat carrier, heat carrier structure is simple, easy to process, and assembly, removal efficiency are high.
Preferably, the igniter and heating source are made of heating part, fixing seat and conducting wire, the heating part is by nitrogen
SiClx barred body and spiral shape heating wire are constituted, and spiral shape heating wire is located inside silicon nitride barred body, and spiral shape heating wire uses tungsten
Silk or molybdenum filament, the heating part are fixedly connected with fixing seat, and the conducting wire passes through fixing seat and connect with heating part.
Preferably, the fixing seat is equipped with external screw thread, threaded assembling stand, institute are fixed in the cavity wall of working chamber
Igniter is stated to connect by the matching thread of fixing seat and assembling stand；The end cap of working chamber is equipped with threaded pilot hole, institute
Heating source is stated to connect by the matching thread of fixing seat and pilot hole.Use dismountable connection type such as screw thread, installation, dimension
Easy to operate when shield, disassembly, work efficiency is high.
Preferably, the igniter is by igniter shell, heating bar, thermal conducting sleeve, heat storage, heat insulator, sealed end
Lid and conducting wire composition, one end of the heating bar are placed in igniter shell, are fixed by thermal conducting sleeve and igniter shell, institute
Heat storage to be stated to be located in igniter shell and be socketed with heating bar, heat insulator is fixed between heat storage and igniter shell,
Igniter shell is sealed by end cover, and the conducting wire passes through end cover and heat storage is connect with heating bar, such to ignite
Device structure system another unique design of the invention can save energy consumption under the premise of guaranteeing the ignition results of igniter, because
Can be by the accumulation of heat of heating bar rear end for the heat storage of design, thermal losses is few, when heating bar head temperature is not achieved a little
When fiery temperature, the heat of heat storage accumulation can be rapidly transferred to front end by heating bar, and avoid makes to send out by power supply power supply merely
Hot pin reaches the deficiency of firing temperature.
Preferably, the heating bar is made of silicon nitride barred body and spiral shape heating wire, spiral shape heating wire is located at nitrogen
Inside SiClx barred body, spiral shape heating wire uses tungsten wire or molybdenum filament.
Preferably, the diameter of the nozzle opening of the fuel switching mechanism is 0.6~1.2mm.
Preferably, the high temperature guiding mechanism is twist.
For the purification system of diesel engine vent gas purification, including oil supply mechanism, gas supply mechanism, control module, granule capturing
Device and high temperature cleaning plant of the invention, the oil supply mechanism are connected to the oil inlet pipe of fuel switching mechanism, the gas supply mechanism
Be connected to tracheae, the import of the high temperature cleaning plant is fixedly connected with Diesel Engine Exhaust Pipe, the outlet of high temperature cleaning plant with
The import of grain catcher is fixedly connected, and the oil supply mechanism, gas supply mechanism, heating source and igniter pass through data line and control
The connection of molding block.
Above-mentioned purification system for diesel engine vent gas purification method it is as follows: diesel engine vent gas purification system need to
The particulate matter of grain trap trapping when being cleared up automatically: closure switch, and power supply is to the heating source in fuel switching mechanism
Power supply, heating source are located at the heat carrier in fuel switching mechanism to it after being powered and conduct heat, and heat carrier stores high temperature heat；
Power supply is powered to igniter, and gas supply mechanism injects air into working chamber by tracheae, and control module controls the oil of oil supply mechanism
Pump is opened, and is recovered the oil from engine oil return pipe, by oil inlet pipe, diesel oil is transported in fuel switching mechanism, is converted by fuel
Liquid diesel is converted high-pressure gaseous diesel oil by mechanism, and high-pressure gaseous diesel oil sprays rapidly from the nozzle opening of fuel switching mechanism
Out, it is mixed with the air in working chamber, when the mixture of gaseous diesel and air is sent into igniter position, igniter is by oil gas
Mixture instantaneous ignition, the gas mixture being ignited push to high temperature guiding mechanism by gas supply mechanism, due to diesel engine itself
Exhaust Pressure and gas mixture itself impulse force superposition, by making gas mixture reach steering when high temperature guiding mechanism
Mixed purpose, meanwhile, in turning to mixed process, gas mixture is also reached most using oxygen remaining in diesel engine vent gas
Good combustion efficiency uniformly rises to reach heating cavity temperature, and then uniformly increase temperature in grain catcher, makes to gather
Particulate matter in grain catcher is oxidized reduction completely, reaches the mesh that the particulate matter of grain catcher trapping is cleared up completely
, until work terminates.
The beneficial effects of the present invention are:
1, original initiative regeneration mode needs to be added additive in the diesel oil of diesel oil tank, and the present invention can will be sent out
The redox temperature precise elevation of poisonous and harmful substance also can to required temperature spot to abandon additive in motivation tail gas
Cleaning completely, reaches national emission standard, reduces use cost.
2, fuel switching mechanism is mounted in working chamber, and it is unsmooth to avoid engine exhaust.
3, gas temperature needed for the spiralization design of high temperature guiding mechanism makes particle cleaning is uniformly spread, moreover it is possible to be utilized useless
Remnant oxygen in gas keeps burning more abundant, to promote cleaning effect.
4, since individual igniter and heating source is utilized, Each performs its own functions, and high reliablity of lighting a fire is burnt more abundant,
Cleaning effect is more stable.
5, working chamber end cap and device for igniting use the mounting means of pipe screw thread, so that entire cleaning plant installation, disassembly, dimension
It repairs very easy.
6, the present invention is not influenced by the diesels equipment applying working condition such as diesel vehicle and ambient temperature, highly stable general
The pollution particulate matter of grain trap trapping is cleared up completely.
Detailed description of the invention
Fig. 1: structural schematic diagram of the embodiment of the present invention 1 for the high temperature cleaning plant of diesel engine vent gas purification.
The structural schematic diagram of working chamber in Fig. 2: Fig. 1.
The structural schematic diagram of igniter and heating source in Fig. 3: Fig. 2.
The assembling schematic diagram of heating source and heat carrier in Fig. 4: Fig. 2.
The structural schematic diagram of fuel switching mechanism in Fig. 5: Fig. 2.
The assembling schematic diagram of fuel switching mechanism in Fig. 6: Fig. 2.
The assembling schematic diagram of igniter in Fig. 7: Fig. 2.
Fig. 8: structural schematic diagram of the embodiment of the present invention 2 for the high temperature cleaning plant of diesel engine vent gas purification.
The structural schematic diagram of igniter in Fig. 9: Fig. 8.
Figure 10: the diesel engine vent gas purification system schematic diagram of the embodiment of the present invention 3.
Wherein: 1, working chamber, 11, fuel switching mechanism, 111, oil inlet pipe, 112, heating source, 113, upper end cover,
114, lower end cover, 115, calandria, 116, thermal conducting sleeve, 117, heat insulator, 12, igniter, 121, igniter shell,
122, heating bar, 123, thermal conducting sleeve, 124, heat storage, 125, heat insulator, 126, end cover, 2, heating chamber, 21, high temperature leads
To mechanism, 22, flow-stopping plate, 3, tracheae, 4, oil supply mechanism, 5, gas supply mechanism, 6, control module.
Specific embodiment
The present invention is described further with reference to the accompanying drawings and examples.Although the present invention will in conjunction with preferred embodiment into
Row description, it should be understood that these verbal descriptions, only describe the simple text of mentality of designing of the present invention, be not offered as this hair
It is bright to be limited in the verbal description and above-described embodiment, on the contrary, any combination without departing from mentality of designing of the present invention, increase and
Modification, fall within the protection scope of the present invention, the present invention by cover may include have appended claims limit this hair
Alternative, modified and equivalent in bright range.
Referring to shown in Fig. 1 to Figure 10, the high temperature cleaning plant presented here for diesel engine vent gas purification, purification system
General application type: diesel vehicle, non-rice habitats diesel vehicle, diesel-driven generator of national emission standard etc. is not achieved in discharge, and cooperation is caught
Storage object: grain catcher etc., however, it should be appreciated that present invention may also apply to the exhaust particulate object of other exhaust emissions equipment is clear
Reason.
The function of various pieces of the invention is illustrated first below:
Working chamber 1
Major function: it is lighted after the diesel oil of injection is converted to high-pressure gaseous diesel oil by fuel switching mechanism 11, by point
High-temperature mixed gas after combustion is discharged into heating chamber 2.
Main inner mechanisms: fuel switching mechanism 11, igniter 12.
The major function of fuel switching mechanism 11: being heated heat carrier 115 by heating source 112, and heat carrier 115 is by introducing
Liquid diesel heating, diesel oil expand rapidly in the cavity of the closed formation of upper and lower end cover by high temperature action, are converted into height
Gaseous diesel is pressed, due to rapid spatial expansion, generates high pressure, gaseous diesel is sprayed from nozzle opening rapidly.
The main member of fuel switching mechanism 11: heating source 112, upper end cover 113 have the lower end cover of nozzle opening
114, closed cavity is formed between upper and lower end cover, one end of heating source 112 and upper end cover 113 are fixed, the other end
For free end, heat carrier 115 is socketed on heating source 112 by the free end, is equipped with thermal conducting sleeve outside heat carrier 115
116, heat insulator 117 made of heat-barrier material are additionally provided between thermal conducting sleeve 116 and upper and lower end cover.
Igniter 12:
Major function: it is individually that high-temperature gas is diesel oil ignited, to improve the temperature for being discharged into gas in heating chamber 2.
The heating part (or heating bar) of igniter 12 is by silicon nitride high temperature sintering system at silicon nitride is a kind of superhard
Substance itself has the characteristics that anti-oxidant, high thermal efficiency when wear-resistant, high temperature.And it can also resist cooling thermal impact, in air
In be heated to 1000 DEG C or more, quick refrigeration sharply heats again, will not fragmentation.
Heat up chamber 2:
Major function: the high temperature and high pressure gas that working chamber 1 is discharged into makes to heat up by spiral shape high temperature guiding mechanism 21
Temperature in chamber 2 is uniformly distributed, and using the remnant oxygen in exhaust gas, keeps the gaseous diesel burning of injection more abundant, wherein
The effect of flow-stopping plate 22 is the adverse effect avoided when diesel engine vent gas impact in front end works to igniter.
Primary structure: spiral shape high temperature guiding mechanism 21, flow-stopping plate 22 are mounted on working chamber 1 and heating 2 junction of chamber.
Oil supply mechanism 4
Major function: taking oil from diesel engine oil return pipe, is transported in fuel switching mechanism 11.
Gas supply mechanism 5
Major function: for the oxygen supply of working chamber 1.
Control module 6
Major function: distributive value, injected gas volume and time are automatically controlled.
Embodiment 1
As shown in figs. 1-7, the high temperature cleaning plant for diesel engine vent gas purification of the invention, including working chamber 1 and liter
Warm chamber 2, the working chamber 1 are located at the outside of heating chamber 2, the side import welding of the outlet of working chamber 1 and the chamber 2 that heats up, welding
Place forms angle, and the degree of the angle is 27~67 °, and the present embodiment uses 45 °, and the inside of weld is along 1 cavity wall of working chamber
The direction of extension is also welded with flow-stopping plate 22, and flange, peace on the outside of the end cap of working chamber 1 are equipped in the opening at 2 both ends of chamber of heating up
Equipped with tracheae 3, inside is equipped with fuel switching mechanism 11, is connected between end cap and cavity wall by pipe screw thread, the fuel conversion
Mechanism 11 includes oil inlet pipe 111, heating source 112, upper end cover 113, the lower end cover 114 with nozzle opening, upper and lower sealing
Cavity is formed between end cap, wherein the heating part of heating source 112 is located in the cavity, and the length of heating part is less than the length of cavity
Degree, the outside of heating part are socketed with heat carrier 115, and the heat carrier 115 is integrally formed by heat carrier ontology and several cooling fins,
115 external mounting of heat carrier has thermal conducting sleeve 116, and there are also by thermal insulating material between the thermal conducting sleeve 116 and upper and lower end cover
Expect the heat insulator 117 being process, the oil outlet of the oil inlet pipe 111 passes through lower end cover 114 and enters in cavity, oil inlet end
It is fixed on the end cap of working chamber 1, the junction of oil inlet pipe 111 and lower end cover 114 seals, the cavity wall in nozzle opening front end
On be equipped with inside the outlet end for the chamber 2 that heats up for the igniter 12 that high-pressure gaseous is diesel oil ignited and be equipped with for by diesel oil
The high temperature guiding mechanism 21 of tail gas and the mixing of the high-temperature gas of the diesel oil ignited formation of high-pressure gaseous.
In the present embodiment the aperture of nozzle opening be 0.6-1.2mm, high temperature guiding mechanism 21 twist, the igniter 12
It is made of with heating source 112 heating part, fixing seat and conducting wire, the heating part is by silicon nitride barred body and spiral shape heating wire structure
At spiral shape heating wire is located inside silicon nitride barred body, and spiral shape heating wire uses tungsten wire, and the heating part and fixing seat are solid
Fixed, conducting wire passes through fixing seat and connect with heating part, and the fixing seat is equipped with external screw thread, and band spiral shell is welded in the cavity wall of working chamber 1
The assembling stand of line, the igniter 12 are connected by the matching thread of fixing seat and assembling stand；It is machined on the end cap of working chamber 1
Threaded pilot hole, the heating source 112 are connected by the matching thread of fixing seat and pilot hole.
Embodiment 2
As Figure 8-9, another kind of the invention is used for the high temperature cleaning plant of diesel engine vent gas purification, basic structure
With embodiment 1, be a difference in that: the construction of igniter 12 is further improved, and the igniter 12 is by igniter shell 121, hair
Hot pin 122, thermal conducting sleeve 123, heat storage 124, heat insulator 125, end cover 126 and conducting wire composition, 122 sticks of the fever
One end is placed in igniter shell 121, and fixed by thermal conducting sleeve 123 and igniter shell 121, the heat storage 124 is located at
Be socketed in igniter shell 121 and with heating bar 122, heat insulator 125 be fixed at heat storage 124 and igniter shell 121 it
Between, igniter shell 121 is sealed by end cover 126, and the conducting wire passes through end cover 126 and heat storage 124 and fever
Stick 122 connects, and the heating bar 122 of the present embodiment is also made of silicon nitride barred body and spiral shape heating wire, spiral shape heating wire position
Inside silicon nitride barred body, spiral shape heating wire uses molybdenum filament.
In the present embodiment the aperture of nozzle opening be 0.6-1.2mm, high temperature guiding mechanism 21 twist, the igniter 12
Igniter shell 121 be equipped with external screw thread, threaded assembling stand is welded in the cavity wall of working chamber 1, the igniter 12 is logical
Igniter shell 121 is crossed to connect with the matching thread of assembling stand.
Embodiment 3
As shown in Figure 10, the purification system for diesel engine vent gas purification, including oil supply mechanism 4, gas supply mechanism 5, control
High temperature cleaning plant described in module 6, grain catcher and embodiment 1, the oil inlet of the oil supply mechanism 4 and fuel switching mechanism 11
Pipe 111 is connected to, and the gas supply mechanism 5 is connected to tracheae 3, the import of the high temperature cleaning plant and the fixed company of Diesel Engine Exhaust Pipe
It connects, the outlet of high temperature cleaning plant is fixedly connected with the import of grain catcher, the oil supply mechanism 4, gas supply mechanism 5, heat supply
Body 112 and igniter 12 are connect by data line with control module 6.
Embodiment 4
The method that purification system described in embodiment 3 is used for diesel engine vent gas purification, the purification method are as follows: in diesel oil
When tail gas purification system needs the particulate matter trapped to grain catcher to be cleared up automatically: closure switch, power supply is to being located at
Heating source 112 in fuel switching mechanism 11 is powered, and heating source 112 is located at thermally conductive in fuel switching mechanism 11 to it after being powered
Body 115 conducts heat, and heat carrier 115 stores high temperature heat；Power supply to igniter 12 be powered, gas supply mechanism 5 by tracheae 3 to
Air is injected in working chamber 1, the oil pump that control module 6 controls oil supply mechanism 4 is opened, recovers the oil, pass through from engine oil return pipe
Diesel oil is transported in fuel switching mechanism 11 by oil inlet pipe 111, converts high pressure gas for liquid diesel by fuel switching mechanism 11
State diesel oil, high-pressure gaseous diesel oil spray rapidly from the nozzle opening of fuel switching mechanism 11, mix with the air in working chamber 1,
When the mixture of gaseous diesel and air is sent into 12 position of igniter, igniter 12 is by gas mixture instantaneous ignition, by point
The gas mixture of combustion pushes to high temperature guiding mechanism 21 by gas supply mechanism 5, due to the Exhaust Pressure and oil gas of diesel engine itself
The impulse force of mixture itself is superimposed, by making gas mixture achieve the purpose that turn to mixing when high temperature guiding mechanism 21, together
When, in turning to mixed process, gas mixture also reaches best combustion effect using oxygen remaining in diesel engine vent gas,
Uniformly rise to reach temperature in heating chamber 2, and then uniformly increase grain catcher (DPF) inner temperature, makes to accumulate in
Particulate matter in grain trap (DPF) is oxidized reduction completely, and the particulate matter for reaching the trapping of (DPF) grain catcher is cleared up completely
Purpose, until work terminate.
Claims (8)
1. the high temperature cleaning plant of diesel engine vent gas purification, it is characterised in that: including working chamber (1) and heating chamber (2), working chamber
(1) outlet is fixedly connected with the import of heating chamber (2), and working chamber (1) side is fixed with tracheae (3), working chamber (1)
Inside be fixed with the fuel switching mechanism (11) for liquid diesel to be converted into high-pressure gaseous diesel oil, the working chamber
(1) it is also fixed in the cavity wall of the nozzle opening front end of fuel switching mechanism (11) for high-pressure gaseous is diesel oil ignited in
Igniter (12), heating chamber (2) is used to connect and be fixed with inside outlet end of grain catcher import for height
The high temperature guiding mechanism (21) that the high-temperature gas of the diesel oil ignited formation of state of calming the anger is oriented to；The high temperature guiding mechanism (21) is in
Spiral shape；The gas mixture being ignited is pushed to high temperature guiding mechanism (21) by tracheae (3) by gas supply mechanism；The work
Chamber (1) is located at the outside of heating chamber (2), the junction formation angle of working chamber (1) and heating chamber (2), the degree of the angle
It is 27 ~ 67 °；The working chamber (1) and the inside of heating chamber (2) junction are also solid along the direction that working chamber (1) cavity wall extends
Surely flow-stopping plate (22) are equipped with；The tracheae (3) is fixed at the outside of working chamber (1) end cap, the fuel switching mechanism
(11) it is fixed at the inside of working chamber (1) end cap, the end cap of working chamber (1) is detachably connected with cavity wall；The fuel turns
Structure (11) of changing planes includes oil inlet pipe (111), heating source (112), upper end cover (113), the lower end cover with nozzle opening
(114), cavity is formed between upper and lower end cover, wherein the heating part of heating source (112) is set in the cavity, heating part
Outside be socketed with heat carrier (115), the heat carrier (115) is made of heat carrier ontology and several cooling fins, heat carrier
(115) external to be equipped with thermal conducting sleeve (116), heat insulator is additionally provided between the thermal conducting sleeve (116) and upper and lower end cover
(117), the oil outlet of the oil inlet pipe (111) passes through upper end cover (113) or lower end cover (114) enters in cavity,
Oil inlet pipe (111) and upper end cover (113) or the junction of lower end cover (114) seal.
2. the high temperature cleaning plant of diesel engine vent gas purification according to claim 1, it is characterised in that: the igniter
(12) it is made of with heating source (112) heating part, fixing seat and conducting wire, the heating part is sent out by silicon nitride barred body and spiral shape
Heated filament is constituted, and spiral shape heating wire is located inside silicon nitride barred body, and spiral shape heating wire uses tungsten wire or molybdenum filament.
3. the high temperature cleaning plant of diesel engine vent gas purification according to claim 2, it is characterised in that: the fixing seat is set
There is external screw thread, threaded assembling stand is fixed in the cavity wall of working chamber (1), the igniter (12) passes through fixing seat and dress
Matching thread connection with seat；The end cap of working chamber (1) is equipped with threaded pilot hole, and the heating source (112) passes through solid
The connection of the matching thread of reservation and pilot hole.
4. the high temperature cleaning plant of diesel engine vent gas purification according to claim 1, it is characterised in that: the igniter
(12) by igniter shell (121), heating bar (122), thermal conducting sleeve (123), heat storage (124), heat insulator (125), sealing
End cap (126) and conducting wire composition, one end of the heating bar are placed in igniter shell (121), pass through thermal conducting sleeve (123)
Fixed with igniter shell (121), the heat storage (124) is located in igniter shell (121) and covers with heating bar (122)
It connects, heat insulator (125) is fixed between heat storage (124) and igniter shell (121), and igniter shell (121) passes through close
Sealing end lid (126) sealing.
5. the high temperature cleaning plant of diesel engine vent gas purification according to claim 4, it is characterised in that: the heating bar
(122) it is made of silicon nitride barred body and spiral shape heating wire, spiral shape heating wire is located inside silicon nitride barred body, spiral shape fever
Silk uses tungsten wire or molybdenum filament.
6. the high temperature cleaning plant of the purification of diesel engine vent gas described according to claim 1 or 2 or 3, it is characterised in that: institute
The diameter for stating the nozzle opening of fuel switching mechanism (11) is 0.6 ~ 1.2mm.
7. the purification system for diesel engine vent gas purification, it is characterised in that: including oil supply mechanism (4), gas supply mechanism (5), control
High temperature cleaning plant described in molding block (6), grain catcher and claim 1 to 6 any one, the oil supply mechanism (4)
It is connected to the oil inlet pipe (111) of fuel switching mechanism, the gas supply mechanism (5) is connected to tracheae (3), the high temperature cleaning plant
Import be fixedly connected with Diesel Engine Exhaust Pipe, the outlet of high temperature cleaning plant is fixedly connected with the import of grain catcher, institute
Oil supply mechanism (4), gas supply mechanism (5), heating source (112), igniter (12) is stated to connect by data line and control module (6)
It connects.
8. a kind of method that purification system as claimed in claim 7 is used for diesel engine vent gas purification, which is characterized in that the purification
Method is as follows: when diesel engine vent gas purification system needs the particulate matter trapped to grain catcher to be cleared up automatically: closure
Switch, power supply are located at after being powered to it to heating source (112) power supply being located in fuel switching mechanism (11), heating source (112)
Heat carrier (115) in fuel switching mechanism (11) conducts heat, and heat carrier (115) stores high temperature heat；Power supply is to igniting
Device (12) is powered, and gas supply mechanism (5) injects air into working chamber (1) by tracheae (3), and control module (6) is controlled for oil machine
The oil pump of structure (4) is opened, and recovers the oil from engine oil return pipe, by oil inlet pipe (111), diesel oil is transported to fuel switching mechanism
(11) in, high-pressure gaseous diesel oil is converted by liquid diesel by fuel switching mechanism (11), high-pressure gaseous diesel oil is converted from fuel
It sprays rapidly, is mixed with the air in working chamber (1), when the mixture of gaseous diesel and air in the nozzle opening of mechanism (11)
When being sent into igniter (12) position, igniter (12) is by gas mixture instantaneous ignition, and the high-temperature gas being ignited is by air feeder
Structure (5) pushes to high temperature guiding mechanism (21), since the impulse force of the Exhaust Pressure and high-temperature gas itself of diesel engine itself is superimposed,
By making gas mixture achieve the purpose that turn to mixing when high temperature guiding mechanism (21), while in turning to mixed process,
High-temperature gas reaches best combustion effect using oxygen remaining in diesel engine vent gas, so that it is equal to reach heating chamber (2) interior temperature
Even rising, and then uniformly increase temperature in grain catcher, make to accumulate in the particulate matter in grain catcher and is oxidized completely
Reduction achievees the purpose that the particulate matter of grain catcher trapping is cleared up completely, until work terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095823.7A CN103867264B (en) | 2014-03-17 | 2014-03-17 | High temperature cleaning plant, purification system and the purification method of diesel engine vent gas purification |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410095823.7A CN103867264B (en) | 2014-03-17 | 2014-03-17 | High temperature cleaning plant, purification system and the purification method of diesel engine vent gas purification |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103867264A CN103867264A (en) | 2014-06-18 |
| CN103867264B true CN103867264B (en) | 2019-01-08 |
Family
ID=50906212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410095823.7A Expired - Fee Related CN103867264B (en) | 2014-03-17 | 2014-03-17 | High temperature cleaning plant, purification system and the purification method of diesel engine vent gas purification |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103867264B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE538308C2 (en) * | 2014-09-03 | 2016-05-10 | Scania Cv Ab | Device for injecting a reducing agent into exhaust gases |
| US9828897B2 (en) * | 2015-04-30 | 2017-11-28 | Faurecia Emissions Control Technologies Usa, Llc | Mixer for a vehicle exhaust system |
| CN104912631B (en) * | 2015-06-06 | 2018-02-02 | 杭州携蓝环保科技有限公司 | A kind of active regeneration system of diesel particulate filter |
| CN104912630B (en) * | 2015-06-06 | 2017-07-14 | 杭州携蓝环保科技有限公司 | The active regeneration device and active regeneration system of a kind of diesel particulate filter |
| CN112682148B (en) * | 2020-12-28 | 2021-12-14 | 江苏星光发电设备有限公司 | Intelligent purifying equipment with automatic cleaning function for diesel engine |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5771683A (en) * | 1995-08-30 | 1998-06-30 | Southwest Research Institute | Active porous medium aftertreatment control system |
| CN103104318A (en) * | 2012-12-12 | 2013-05-15 | 贵州黄帝车辆净化器有限公司 | Heating bar specially used for diesel engine exhaust aftertreatment device and function distribution of heating bar |
| CN103502589A (en) * | 2011-03-09 | 2014-01-08 | 株式会社久保田 | Engine exhaust treatment device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19504183A1 (en) * | 1995-02-09 | 1996-08-14 | Eberspaecher J | Diesel engine particle filter regenerating burner |
| CN203783698U (en) * | 2014-03-17 | 2014-08-20 | 杭州携蓝环保科技有限公司 | High-temperature cleaning plant and purification system for tail gas purification of diesel engine |
-
2014
- 2014-03-17 CN CN201410095823.7A patent/CN103867264B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5771683A (en) * | 1995-08-30 | 1998-06-30 | Southwest Research Institute | Active porous medium aftertreatment control system |
| CN103502589A (en) * | 2011-03-09 | 2014-01-08 | 株式会社久保田 | Engine exhaust treatment device |
| CN103104318A (en) * | 2012-12-12 | 2013-05-15 | 贵州黄帝车辆净化器有限公司 | Heating bar specially used for diesel engine exhaust aftertreatment device and function distribution of heating bar |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103867264A (en) | 2014-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103867264B (en) | High temperature cleaning plant, purification system and the purification method of diesel engine vent gas purification | |
| JP4393858B2 (en) | Auxiliary equipment for exhaust aftertreatment equipment | |
| CN105026712A (en) | Burner with air-assisted fuel nozzle and vaporizing ignition system | |
| CN105008685A (en) | Exhaust treatment burner and mixer system | |
| CN105051339A (en) | Exhaust aftertreatment burner with preheated combustion air | |
| CN104912631B (en) | A kind of active regeneration system of diesel particulate filter | |
| CN105026713A (en) | Ion sensor with decoking heater | |
| CN102353033B (en) | High-temperature high-pressure combustion system for supercritical compound heat carrier generator | |
| CN204804905U (en) | Initiative regenerating unit and initiative regeneration system of diesel particulate filter | |
| CN110273731A (en) | A kind of burner meeting grain catcher DPF worst cold case highly efficient regeneration | |
| CN103104317B (en) | Diesel engine exhaust after-treatment heating-up device and heating-up method | |
| CN203783698U (en) | High-temperature cleaning plant and purification system for tail gas purification of diesel engine | |
| CN203285515U (en) | Preheating temperature increasing device for diesel engine exhaust aftertreatment device | |
| CN203362271U (en) | Preheating temperature increaser of diesel engine exhaust aftertreatment device | |
| CN103104321B (en) | Diesel engine exhaust reprocessing heat riser and temperature-rising method | |
| CN203201628U (en) | Diesel engine exhaust aftertreatment device heater | |
| CN210801172U (en) | Flat dispersion flame low NOx coal gas heat accumulation burner | |
| CN201000110Y (en) | Novel ignition device of household gas stove | |
| CN204984547U (en) | Initiative regeneration system of diesel particulate filter | |
| CN211230585U (en) | Burner capable of achieving efficient regeneration of DPF of particulate filter under low-temperature working condition | |
| CN203201626U (en) | Diesel engine exhaust aftertreatment device heater | |
| CN104912630A (en) | Active regeneration system of diesel particulate filter and active regeneration system | |
| CN103104320B (en) | Diesel engine exhaust aftertreatment device pre-heater and heating method | |
| CN103104315B (en) | Diesel engine exhaust aftertreatment device heater and heating method | |
| CN103104316B (en) | Diesel engine exhaust after-treatment device preheating heating-up device and heating-up method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 |