WO2000046492A1 - Dispositif reduisant les fumees noires et les particules destine aux moteurs diesel et dispositif auxiliaire servant a reduire les gaz d'echappement - Google Patents

Dispositif reduisant les fumees noires et les particules destine aux moteurs diesel et dispositif auxiliaire servant a reduire les gaz d'echappement Download PDF

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Publication number
WO2000046492A1
WO2000046492A1 PCT/JP2000/000556 JP0000556W WO0046492A1 WO 2000046492 A1 WO2000046492 A1 WO 2000046492A1 JP 0000556 W JP0000556 W JP 0000556W WO 0046492 A1 WO0046492 A1 WO 0046492A1
Authority
WO
WIPO (PCT)
Prior art keywords
exhaust gas
filter
black smoke
heat
particulate matter
Prior art date
Application number
PCT/JP2000/000556
Other languages
English (en)
Japanese (ja)
Inventor
Fumiya Takeuchi
Original Assignee
Fumiya Takeuchi
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fumiya Takeuchi filed Critical Fumiya Takeuchi
Publication of WO2000046492A1 publication Critical patent/WO2000046492A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/022—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous
    • F01N3/0226—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters characterised by specially adapted filtering structure, e.g. honeycomb, mesh or fibrous the structure being fibrous
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
    • F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
    • F02M26/32—Liquid-cooled heat exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
    • F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
    • F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
    • F02M26/35—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with means for cleaning or treating the recirculated gases, e.g. catalysts, condensate traps, particle filters or heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2370/00—Selection of materials for exhaust purification
    • F01N2370/22—Selection of materials for exhaust purification used in non-catalytic purification apparatus
    • 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
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the present invention relates to a diesel engine exhaust purification device and an exhaust gas reduction auxiliary device, and particularly to exhaust (particulate) black smoke and particulate matter at a heat resistant temperature.
  • a continuous fiber of 700-1000 ° C or continuous fiber of aluminum at 1400 ° C it collects sparks and coarse particles, and 0.03 micron particles are collected in the secondary filter. Repair is also possible.
  • clean exhaust gas from diesel engines can be used to reduce harmful exhaust gas such as N02 by recirculating clean exhaust gas from the outlet. It relates to a reduction assisting device. Background art
  • the particulate matter and black smoke removal device is a black filter collected by a ceramic filter, such as silicon carbide (Sic) or cordierite, made of a wall-honeycomb cylindrical shape.
  • Smoke and particulate matter can be regenerated by operating the burner at a burner temperature of about 720 ° C for about 10 minutes to regenerate.
  • Mic eight-cam-shaped cylindrical filter Air flows the particulate matter collected by the filter in the direction opposite to that of the exhaust gas, and the fine particles attached to the wall K are moved to the hopper by gravity. Dropping and incineration with an electric heater. Electric heater by collecting with a ceramic honeycomb filter. Incineration by burners is the mainstream.
  • the configuration of the present invention does not use expensive ceramic filters and electric heating heaters, and the material of the filters includes an urban waste incinerator.
  • High cost bag filter for dust collection with PTFE (Volatile Fluoroethylene) fiber filter which has been used for several decades, enables low cost.
  • the membrane filter is a tough, supple, fine, continuous porous body made by advanced special processing technology. It has a surface filtration function and is hardly clogged.
  • Traditional filter bags relied on dust primary deposition to deposit dust locally, but this primary adhesion could be an obscure cause. This reduced the function of the dust collector: in contrast, the membrane filter knuckle filtered the dust through the surface of the membrane that was laminated to the surface. It has a complete surface filtration function. In other words, there is no need for a primary adhesion layer that causes clogging.
  • the filter bag has excellent characteristics such as low pressure loss and increased processing air volume.
  • the technical challenge is to reduce the exhaust gas temperature to 260 ° C or less using a radiator.
  • a radiator For this purpose, the use of a stand-alone mini-cyclone that also functions as a radiator, aluminum with good heat dissipation characteristics, etc., and installation of a membrane filter, heat sink, etc. on the side of the main unit, You can use the filter for a longer time.
  • FIG. 1 is a partial filter cut-away front sectional view showing a device for purifying black smoke and particulate matter according to a first embodiment of the present invention.
  • Figure 2 shows the finalizer unit.
  • Figure 3 shows the black smoke, particulate matter purification device, and the outer structure.
  • FIG. 4 is a side view of the membrane filter bag.
  • Figure 5 shows a thin retainer c
  • FIG. 6 is a front view of the thin retainer.
  • FIG. 7 is a cross-sectional plan view of the apparatus for purifying black smoke and particulate matter.
  • the exhaust gas is injected from the nozzle to directly regenerate the membrane filter bag.
  • FIG. 8 is a side sectional view of FIG. 7 in the same manner.
  • Figure 9 shows a box for collecting black smoke and particulate matter.
  • Fig. 10 is a front sectional view of the dust collection box.
  • Fig. 11 shows the structure of the valve.
  • Fig. 12 shows a black smoke and particulate matter purification device, and a membrane filter. Vibration fine contact type
  • FIG. 13 is a front cross-sectional view of the regeneration method.
  • FIG. 13 is a plan cross-sectional view of FIG. Black smoke and particulate matter purification equipment
  • FIG. 14 is a cross-sectional view showing the structure of the fine vibration contact type shown in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
  • FIG. 1 shows a structure of a first embodiment of a device for purifying diesel engine black smoke and particulate matter and an auxiliary device for reducing exhaust gas according to the present invention.
  • the filter regeneration method used exhaust gas and air. This is a backwash method. When using the filter, the exhaust gas inlet of 13 and the valve of 15 are taken, and the flue of 16 enters the black smoke and particulate matter purifier through the flue of 16.
  • the black smoke and particulate matter purifying apparatus of the present invention has three regeneration methods, and can be used in appropriate combination.
  • Fig. 7 shows the second playback method.
  • the nozzle injection regeneration system using exhaust gas shown in Fig. 8, and the order of regeneration is the same as the valve operation in the backwash system shown in Fig. 2.
  • the black smoke and particulate matter purifying device of the nozzle injection regeneration system was injected from the nozzles of the 23 injection pipes when the filter was used, and the exhaust gas was 19, 5, 6, 7 , 8, and 9 are emitted.
  • the exhaust gas is discharged from the exhaust outlet at 28 because the valve 25 in the dust collection box in Fig. 9 opens and the exhaust valve opens when the filter 8 is used. Go outside. Playback time is about 1-2 minutes. At this time, black smoke and particulate matter are also sent to the 27 heat-resistant dust collection pack. This heat-resistant dust-collecting pack should be replaced and used as needed.
  • the dust-collecting box 24 can be dust-collected by an electric motor, and dust can be collected at any time. You can do this.
  • the scraper of 32 shown in Fig. 12, Fig. 13, and Fig. 14 vibrates up and down to the membrane filter of 19.
  • Regeneration is performed by making a slight contact, and the operation sequence of the valve during the regeneration uses exhaust gas and air. The same applies to the backwashing method and the exhaust injection regeneration method.
  • on-road driving test as a result of conducting a driving test on December 30, 1998, January 3 and 4, and 2-ton track, good collection performance and feasibility were obtained. I was able to get the best playback function
  • the size of the filter used was a flat hollow type with a width of 120 and a length of 300, and four filters were used. Approximately 5 hours operating time Engine rotation speed 700-3800
  • the temperature of one room of the secondary filter was the highest at about 180 degrees.
  • the gears are set to the engine speed of 3800 and the speed of 70 keys.
  • the mouth of the secondary filter after running for 20 minutes
  • the temperature of the primary filter room temperature 290 degrees was recorded, the configuration of the black smoke and particulate matter purification device is shown in Fig. 1 3 Fig. 1
  • the hot gas filter collects sparks and coarse particles.
  • This fiber uses fire-continuous fiber with a heat-resistant temperature of 700 or aluminum continuous fiber with a heat-resistant temperature of 1400 ° C to collect sparks and coarse particles.
  • This thickness is on the order of 0.6 mm to 0.8 mm.
  • there is a wire mesh such as SUS316, which also catches sparks and coarse particles.
  • the above-mentioned PTFE (volume tetrafluoroethylene) fiber membrane filter has a heat resistant temperature of 260 ° C. Therefore, when the temperature is 260 ° C or more, the temperature sensor or speed Control the temperature with a sensor, etc. so that the temperature does not exceed 260 ° C. For example, stop using the filter at a set temperature of 230 ° C and use a normal muffler. Can be switched to.
  • the above-mentioned operation of the switching valve can be performed by a motor, air cylinder, or electric cylinder, but it can also be performed by wire-type manual operation to save cost. You.
  • the pressure sensor operates the switching valve when the filter becomes clogged.
  • the vibration of the wiping mechanism utilizes the vibration of the car, and the wiping device removes the fine particles adhering to the filter surface by the vibration of the spring.
  • a constant vibration type wiping-off mechanism is a camshaft that oscillates in a constant cycle in order to extend the life of the filter.
  • Recirculating clean exhaust gas to the intake pipe of the engine can also be used to reduce nitrogen oxides.
  • a heat-resistant packing such as expanded black smoke braided packing that has a heat-resistant temperature of 600.
  • the performance of the filter for collecting black smoke and particulate matter is high, and by using aluminum for the main body, heat dissipation is improved and the weight is reduced Also, the cost is low.
  • Separating the radiator with a part of the filter increases the degree of freedom of the mounting base and the size of the secondary filter. Therefore, vertical type and horizontal type in backwash type are also possible, making it possible to manufacture thin type-

Abstract

On décrit un dispositif peu coûteux utile pour réduire les fumées noires et/ou les particules qui est capable de piéger les fumées noires et les substances particulaires et de régénérer efficacement les filtres lorsque la température des gaz d'échappement d'un moteur diesel dans une chambre de filtre secondaire monte jusqu'à 260 degrés et un dispositif qui est à même de faciliter la réduction des gaz d'échappement tels que les oxydes d'azote à l'aide d'un gaz d'échappement épuré dans une chambre de recirculation des gaz d'échappement. Lorsque les gaz d'échappement entrent par une entrée de gaz d'échappement dans un dispositif de régulation (13) des fumées noires/substances particulaires dans la figure, ils pénètrent dans une boîte (40) à rayonnement pour y être refroidis. A la fin, les substances particulaires sont piégées par un filtre (19) à membrane en fibres PTFE (polytétrafluoroéthylène) et les gaz d'échappement traversent un dispositif de retenue (5) interne en forme de plaque puis sortent par une sortie (9) propre aux gaz d'échappement. Des gaz d'échappement épurés sortant par la sortie (9) du dispositif de régulation qui sont utilisés par le dispositif de recirculation des gaz d'échappement peuvent réduire les oxydes d'azote.
PCT/JP2000/000556 1999-02-02 2000-02-02 Dispositif reduisant les fumees noires et les particules destine aux moteurs diesel et dispositif auxiliaire servant a reduire les gaz d'echappement WO2000046492A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP11/25500 1999-02-02
JP2550099 1999-02-02

Publications (1)

Publication Number Publication Date
WO2000046492A1 true WO2000046492A1 (fr) 2000-08-10

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Country Status (1)

Country Link
WO (1) WO2000046492A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9051067B2 (en) 2008-03-13 2015-06-09 Nippon Shokubai Co., Ltd. Method for producing particulate water-absorbing agent composed principally of water-absorbing resin

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004595A1 (fr) * 1984-04-07 1985-10-24 Firma Herding Gmbh Element de filtrage pour separer des particules de substances solides de milieux gazeux ou liquides
JPH01174509U (fr) * 1988-05-31 1989-12-12
JPH0352322U (fr) * 1989-09-28 1991-05-21
JPH0417711A (ja) * 1990-05-09 1992-01-22 Hino Motors Ltd エンジンの吸排気装置
JPH0446165B2 (fr) * 1985-03-30 1992-07-29 Sumitomo Metal Ind
JPH0493712U (fr) * 1991-01-10 1992-08-14
JPH04243511A (ja) * 1991-01-28 1992-08-31 Matsushita Electric Works Ltd 集塵機の集塵フィルター
JPH05156925A (ja) * 1991-12-04 1993-06-22 A G Technol Kk ディーゼル機関用パティキュレートトラップ
JPH0534733Y2 (fr) * 1987-12-24 1993-09-02
JPH06123213A (ja) * 1992-10-09 1994-05-06 Muto Isamu ディーゼルエンジンの排気ガス浄化装置
JPH0797908A (ja) * 1993-08-03 1995-04-11 Isuzu Ceramics Kenkyusho:Kk ディ−ゼルパティキュレ−トフィルタ
JPH08232639A (ja) * 1995-02-28 1996-09-10 Ngk Insulators Ltd 集塵装置
JPH08243330A (ja) * 1995-03-13 1996-09-24 Toyota Autom Loom Works Ltd ろ過装置
JPH09324620A (ja) * 1996-06-10 1997-12-16 Toyota Central Res & Dev Lab Inc ディーゼルエンジンの排ガス浄化装置
JP2843245B2 (ja) * 1993-03-10 1999-01-06 日野自動車工業株式会社 集塵機の煤処理装置

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1985004595A1 (fr) * 1984-04-07 1985-10-24 Firma Herding Gmbh Element de filtrage pour separer des particules de substances solides de milieux gazeux ou liquides
JPH0446165B2 (fr) * 1985-03-30 1992-07-29 Sumitomo Metal Ind
JPH0534733Y2 (fr) * 1987-12-24 1993-09-02
JPH01174509U (fr) * 1988-05-31 1989-12-12
JPH0352322U (fr) * 1989-09-28 1991-05-21
JPH0417711A (ja) * 1990-05-09 1992-01-22 Hino Motors Ltd エンジンの吸排気装置
JPH0493712U (fr) * 1991-01-10 1992-08-14
JPH04243511A (ja) * 1991-01-28 1992-08-31 Matsushita Electric Works Ltd 集塵機の集塵フィルター
JPH05156925A (ja) * 1991-12-04 1993-06-22 A G Technol Kk ディーゼル機関用パティキュレートトラップ
JPH06123213A (ja) * 1992-10-09 1994-05-06 Muto Isamu ディーゼルエンジンの排気ガス浄化装置
JP2843245B2 (ja) * 1993-03-10 1999-01-06 日野自動車工業株式会社 集塵機の煤処理装置
JPH0797908A (ja) * 1993-08-03 1995-04-11 Isuzu Ceramics Kenkyusho:Kk ディ−ゼルパティキュレ−トフィルタ
JPH08232639A (ja) * 1995-02-28 1996-09-10 Ngk Insulators Ltd 集塵装置
JPH08243330A (ja) * 1995-03-13 1996-09-24 Toyota Autom Loom Works Ltd ろ過装置
JPH09324620A (ja) * 1996-06-10 1997-12-16 Toyota Central Res & Dev Lab Inc ディーゼルエンジンの排ガス浄化装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9051067B2 (en) 2008-03-13 2015-06-09 Nippon Shokubai Co., Ltd. Method for producing particulate water-absorbing agent composed principally of water-absorbing resin

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