CN2057462U - After-treatment device for exhaust particles of diesel - Google Patents
After-treatment device for exhaust particles of diesel Download PDFInfo
- Publication number
- CN2057462U CN2057462U CN89217479U CN89217479U CN2057462U CN 2057462 U CN2057462 U CN 2057462U CN 89217479 U CN89217479 U CN 89217479U CN 89217479 U CN89217479 U CN 89217479U CN 2057462 U CN2057462 U CN 2057462U
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- filter core
- solenoid valve
- filter
- gas
- burner
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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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- Processes For Solid Components From Exhaust (AREA)
Abstract
The utility model discloses an after-treatment device for exhaust particles of a diesel, and foamed ceramics is used as a filtering core. A non-through hole is arranged in the filtering core, therefore, filtering area is enlarged, and the air flow resistance is small. After the filtering core is clogged by particles, the filtering core is heated by a small diesel burner, the particles which are deposited on the filtering core are burnt off, the filtering core is regenerated, and the filtering core can work longtime. The fuel injection sprayed into the burner and one-time atomization air which are preliminarily mixed and ignited by a glow plug are secondarily mixed with the oxygen-rich waste gas of the diesel which runs in an idle speed, and full combustion is achieved. The utility model can be used for diesels for automobiles or similar diesels, and particle discharge amount in air exhaust is reduced more than 50%.
Description
The utility model relates to the purification plant of diesel particulates.
At the widely used diesel engine of all departments, because characteristics of combustion process comprises more particulate in the exhaust, concentration can reach 100～300mg/m at present
3This particle size little (generally in 0.01～1 mu m range) can float in air for a long time, is easily sucked by people, and contains poisonous macromolecule organic, as benzo (a) pyrene, polycyclic aromatic hydrocarbon etc., wherein much has carcinogenicity and causes sex change.Improve the design and the quality of processing of diesel engine itself merely, cost is very big, reduce produce effects aspect the particle emission less relatively.The U.S. is just at broad research wall-flow type integral honeycomb micropore ceramics particle trapper, but because of complex structure, it is reliable inadequately to work, and large-scale popularization is not used as yet.
The purpose of this utility model just is to provide that a kind of volume is little, in light weight, simple in structure, the diesel particulates preprocessor of reliable operation, in the time of obviously reducing diesel engine work to the particle number of atmosphere environment discharging.Be applicable to diesel engine for automobile and similar diesel engine.
Technical solution of the present utility model is: by outer pipe (14); filter; inlet tube (11) form with the ceramic diesel particulates preprocessor of making filter core; it is characterized in that between inlet tube (11) and filter, burner being housed; burner and filter coaxial arrangement; adopt foamed ceramics filter core (2) in the filter; which is provided with that several replace mutually; the blind hole of leading to different ends respectively; dull and stereotyped combustion gas mixing grid (7) and primary zone (9) that constitute of several rings are housed in the burner; nozzle (10) and glow plug (12) are housed on the firing chamber (9); oilhole on the nozzle (10) is by being equipped with oil feed non-return valve (24); protection air check valve (29); the oil circuit of fuel filter (23) communicates with the pressure accumulation fuel tank (17) of sealing; reduction valve (19) is housed between it, and oilhole is also by being equipped with protection air check valve (29); the pore that the gas circuit of protection air solenoid valve (27) communicates with gas cylinder (17) on the nozzle (10) communicates with gas cartridge by the gas circuit that atomizing air solenoid valve (25) is housed.
Above-mentioned foamed ceramics filter core (2) can be fixed in the filter core cylinder (4), this filter core cylinder one end can fix on carrying cylinder (5) supporting on the adpting flange of shell (1) end, and two ends can be equipped with in order to guarantee centering ring (6), (13) of the coaxality of foamed ceramics filter core (2) in shell (1).
Above-mentioned glow plug (12); fuel feeding solenoid valve (21); atomizing air solenoid valve (25); protection air solenoid valve (27) can be by following circuit control; be provided with main switch (28) in this circuit and the storage battery (30) of power supply is provided; seal in mechanical timing switch (34) successively; the relay (40) of the time relay (37) (38) and control atomizing air solenoid valve (25); the relay (41) of incorporating control protection air solenoid valve (27) respectively into; to the closed circuit ignition controler (35) (thermocouple joins with it) of maintenance of glow plug (12) power supply, and the relay (39) of control fuel feeding solenoid valve (21).
Below in conjunction with accompanying drawing in detail above scheme and working principle thereof are described in detail: the utility model mainly is by foamed ceramics filter core (2), shell (1), and part such as burner casing (8), primary zone (9), combustion gas mixing grid (7), nozzle (10), glow plug (12) is formed.Foamed ceramics filter core (2) can be fixed in the filter core cylinder (4) of thin-walled with high temperature resistant adhesive (3), the latter's one end is fixed on the adpting flange of shell (1), in the carrying cylinder (5) of the other end free end bearing on being fixed on shell (1) the other end adpting flange, (4), (5) two cylinders can both freely expand with heat and contract with cold like this.Centering ring (6) and (13) guarantee the coaxality of foamed ceramics filter core (2) in shell (1).
The outlet pipe (16) of diesel engine (15) links to each other with the inlet tube (11) of preprocessor.The waste gas in diesel engine when work flows through the annular pass that formed by (8) and (9) and the slot between combustion gas mixing grid (7) enters foamed ceramics filter core (2) through (11), the part particulate matter that is comprised in the waste gas is captured by the foamed ceramics filter core, the waste gas that has been cleaned flows to outer pipe (14), enters atmosphere at last.
The exhaust gas particulate that can become trapped in gradually in the work of foamed ceramics filter core stops up, and therefore must regularly remove the particulate that is deposited in the foamed ceramics filter core, in order to avoid influence the normal operation of diesel engine.Adopt to preprocessor for this reason and spray into the way that a small amount of diesel oil generation high-temperature fuel gas is burnt the particulate in the foamed ceramics filter core, make the foamed ceramics filter core obtain regeneration.
Earlier to glow plug (12) power supply, treat that it is in incandescent state after, to primary zone (9) in, spray diesel oil by the oilhole in the nozzle (10), spray air by the pore around the oilhole to the oil notes simultaneously and make its atomizing.The inflammable mixture of preliminary (not exclusively) burning further mixes with the blast air of diesel engine in combustion gas mixing grid (7) in primary zone (9), and perfect combustion takes place.Temperature reaches 800～1000 ℃ gas flow to foamed ceramics filter core (2), very fast it is heated to more than the burning-point (500～600 ℃) of deposited particles, so the particulate of deposition gets final product burning-out in a few minutes, filter core obtains regeneration.For making the regenerative process burner operation stable, oxygen content is high as far as possible in the diesel exhaust gas, and diesel engine should move at idling operation during regeneration.
For making in the regenerative process flameholding reliable, adopt pressure accumulation low pressure fuel injector system.The little fuel tank (17) of sealing is under the gas pressure of regulation.This air pressure is produced by reduction valve (19) by the high-pressure gas container on the automobile (18), and the pressurized air in the gas cylinder (18) is supplied with by the gas compressor (20) that diesel engine (15) drives.When the switch (22) of fuel feeding solenoid valve (21) when opening, there is the diesel oil of certain pressure to spray into preprocessor through fuel filter (23) and oil feed non-return valve (24).Meanwhile, the switch (26) of atomizing air solenoid valve (25) is open-minded, and high-pressure air sprays into preprocessor from gas cylinder (18) through atomizing air solenoid valve (25).For the nozzle opening that prevents burner stops up; when burner is not worked; the switch (28) of protection air solenoid valve (27) is open-minded all the time; high-pressure air in the gas cylinder (18) enters preprocessor through protection air solenoid valve (27) and protection air check valve (29) by nozzle opening, and nozzle opening is shielded.
For whole thermal regeneration system shown in Figure 2 is worked in regular turn, control with automatical control system shown in Figure 3.Automobile main switch (28) one is open-minded, and storage battery (30) is just opened relay (41) opens protection air solenoid valve (27), and the protection air promptly begins to work.Tutorial light (42) is bright simultaneously.When preprocessor need be regenerated, mechanical timer switch (34) is screwed into the corresponding position of being scheduled to the regeneration endurance, glow plug (12) is promptly by keeping closed circuit ignition controler (35) to obtain to power.After 30 seconds, glow plug (12) has been red heat, and the time relay (37) is open-minded, makes relay (39) open-minded switch (22) immediately, and fuel feeding solenoid valve (21) is opened, and begins to the burner fuel feeding, and tutorial light (44) is bright.Meanwhile, (41) disconnect, and the protection air stops.After 2 seconds, the time relay (38) is open-minded, and relay (40) is open-minded switch (26) immediately, and atomizing air solenoid valve (25) is opened, and sprays into atomizing air to burner, and tutorial light (45) is bright.In case stable flame forms, the thermocouple (36) that is positioned at flame area provides a thermoelectrical potential, makes (35) become open circuit.Glow plug (12) outage, tutorial light (43) promptly extinguishes, and the predetermined heat regeneration endurance one arrives, and mechanical timing switch (34) all cuts off the power supply (35), (39), (40), and (41) are connected again automatically, and hot regenerative process finishes.
The utility model is owing to adopted the cordierite foamed ceramics filter core (see figure 4) of band square hole, effective filtration area is big, resistance is little, particulate deposition rate in the foamed ceramics filter core is more even, foamed ceramics filter core thermal stress is little during heat regeneration, reliability and good endurance are so there is practical preferably prospect.
Description of drawings:
Fig. 1 always schemes for diesel particulates preprocessor structure.
Fig. 2 is the system schematic of preprocessor.
Fig. 3 is the automatical control system sketch of particulate preprocessor.
Fig. 4 is the shape of the used foamed ceramics filter core of diesel particulates preprocessor.
Wherein (1) is shell; (2) be the foamed ceramics filter core; (3) be adhesive layer; (4) be filter core cylinder; (5) be carrying cylinder; (6) be centering ring; (7) be the combustion gas mixing grid; (8) be burner casing; (9) be the primary zone; (10) be nozzle; (11) be inlet tube; (12) be glow plug; (13) be the filter core centering ring; (14) be outer pipe.(15) be diesel engine; (16) be outlet pipe; (17) be the pressure accumulation fuel tank; (18) be gas cylinder; (19) be adjustable compression release valve; (20) be gas compressor; (21) be the fuel feeding solenoid valve; (22) be the fuel feeding switch; (23) be fuel filter; (24) be oil feed non-return valve, (25) are the atomizing air solenoid valve; (26) be the atomizing air switch; (27) be protection air solenoid valve; (28) be the protection air-break switch; (29) be the protection air check valve; (30) be storage battery; (31) be barometer; (32) be oil pressure gauge; (33) be ignition switch.Wherein (34) are mechanical timer; (35) be ignition controler; (36) be thermocouple; (37) and (38) be the time relay; (39) for controlling the relay of fuel feeding solenoid valve; (40) for controlling the relay of the solenoid valve of supplying with atomizing air; (41) for controlling the relay of the solenoid valve of supplying with the protection air; (42)～(45) be tutorial light.
Embodiment
The particulate preprocessor structure of making according to the utility model as shown in Figure 1.The diameter of foamed ceramics core is 200mm, and length is 300mm, and the square hole of 21 18 * 18mm is arranged, and wherein an end is led in 12 holes, and the other end is led in 9 holes in addition, as shown in Figure 4.The average pore size of foam ceramic material hole is 0.2～0.5mm, and voids is 80%.Match with the diesel engine of discharge capacity 5～10L, rotating speed 2000～3000r/min, can reduce particulate emission more than 50%.
Claims (3)
1; by outer pipe (14); filter; inlet tube (11) form with the ceramic diesel particulates preprocessor of making filter core; it is characterized in that between inlet tube (11) and filter, burner being housed; burner and filter coaxial arrangement; adopt foamed ceramics filter core (2) in the filter; which is provided with that several replace mutually; the blind hole of leading to different end faces respectively; the combustion gas mixing grid (7) and primary zone (9) that are made of several ring flat boards are housed in the burner; nozzle (10) and glow plug (12) are housed on the firing chamber (9); oilhole on the nozzle (10) is by being equipped with one-way valve (24); fuel feeding solenoid valve (21); the oil circuit of fuel filter (23) communicates with the pressure accumulation fuel tank (17) of sealing; pressure accumulation fuel tank (17) communicates with the gas cylinder (18) of pressured mechanism of qi (20) air feed; reduction valve (19) is housed between it; oilhole is also by being equipped with protection air check valve (29); the gas circuit of protection air solenoid valve (27) communicates with gas cylinder (18), and the pore on the nozzle (10) communicates with gas cartridge by the gas circuit that gas supply electromagnetic valve (25) is housed.
2, according to claim 1ly make the diesel particulates preprocessor of filter core with pottery by what outer pipe (14), filter, inlet tube (11) were formed, it is characterized in that said foamed ceramics filter core (2) is fixed in the filter core cylinder (4), this filter core cylinder one end is fixed on the shell (1), the other end is by carrying cylinder (5) supporting that is fixed on the adpting flange of shell (1) end, and be equipped with in order to guarantee centering ring (6), (13) of the coaxality of foamed ceramics filter core (2) in shell (1) at two ends.
3; according to claim 1 by outer pipe (14); filter; inlet tube (11) form with the ceramic diesel particulates preprocessor of making filter core; it is characterized in that said glow plug (12); fuel feeding solenoid valve (21); atomizing air solenoid valve (25); protection air solenoid valve (27) is to be controlled by control circuit; be provided with main switch (28) in this circuit and the storage battery (30) of power supply is provided; seal in mechanical timing switch (34) successively; the relay (40) of the time relay (37) (38) and control atomizing air solenoid valve (25) is incorporated the relay (41) that air solenoid valve (27) is protected in control respectively into; the closed circuit ignition controler (35) (thermocouple joins with it) of maintenance to glow plug (12) power supply; and the relay (39) of control electromagnetic valve (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89217479U CN2057462U (en) | 1989-09-28 | 1989-09-28 | After-treatment device for exhaust particles of diesel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89217479U CN2057462U (en) | 1989-09-28 | 1989-09-28 | After-treatment device for exhaust particles of diesel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2057462U true CN2057462U (en) | 1990-05-23 |
Family
ID=4872728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89217479U Withdrawn CN2057462U (en) | 1989-09-28 | 1989-09-28 | After-treatment device for exhaust particles of diesel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2057462U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979845A (en) * | 2010-10-14 | 2011-02-23 | 平原滤清器有限公司 | Diesel atomizing and air mixing device of diesel filter regeneration system |
| CN102192202A (en) * | 2011-06-21 | 2011-09-21 | 何学才 | Energy accumulator station formed by welding air tank and mixing piston energy accumulator |
| CN103097683A (en) * | 2010-09-16 | 2013-05-08 | 日野自动车株式会社 | Method for warming after-treatment burner system |
| CN110107380A (en) * | 2019-04-17 | 2019-08-09 | 湖南冠拓科技股份有限公司 | A kind of diesel engine vent gas carbon particle collector removes carbon method and apparatus |
-
1989
- 1989-09-28 CN CN89217479U patent/CN2057462U/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103097683A (en) * | 2010-09-16 | 2013-05-08 | 日野自动车株式会社 | Method for warming after-treatment burner system |
| CN103097683B (en) * | 2010-09-16 | 2015-01-28 | 日野自动车株式会社 | Method for warming after-treatment burner system |
| CN101979845A (en) * | 2010-10-14 | 2011-02-23 | 平原滤清器有限公司 | Diesel atomizing and air mixing device of diesel filter regeneration system |
| CN102192202A (en) * | 2011-06-21 | 2011-09-21 | 何学才 | Energy accumulator station formed by welding air tank and mixing piston energy accumulator |
| CN102192202B (en) * | 2011-06-21 | 2013-07-03 | 何学才 | Energy accumulator station formed by welding air tank and mixing piston energy accumulator |
| CN110107380A (en) * | 2019-04-17 | 2019-08-09 | 湖南冠拓科技股份有限公司 | A kind of diesel engine vent gas carbon particle collector removes carbon method and apparatus |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |