RU2013133962A - MIXING DEVICE FOR THE FURTHER PROCESSING OF THE WASTE GAS - Google Patents

MIXING DEVICE FOR THE FURTHER PROCESSING OF THE WASTE GAS Download PDF

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RU2013133962A
RU2013133962A RU2013133962/06A RU2013133962A RU2013133962A RU 2013133962 A RU2013133962 A RU 2013133962A RU 2013133962/06 A RU2013133962/06 A RU 2013133962/06A RU 2013133962 A RU2013133962 A RU 2013133962A RU 2013133962 A RU2013133962 A RU 2013133962A
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inner tube
mixing device
exhaust gas
housing
mixing
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RU2013133962/06A
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Russian (ru)
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RU2628849C2 (en
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Херберт АЛЬБЕРТ
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Ман Трак Унд Бас Аг
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    • 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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/18—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control
    • F01N3/20—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/10—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components
    • B01F25/102—Mixing by creating a vortex flow, e.g. by tangential introduction of flow components wherein the vortex is created by two or more jets introduced tangentially in separate mixing chambers or consecutively in the same mixing chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/313—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit
    • B01F25/3131—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced in the centre of the conduit with additional mixing means other than injector mixers, e.g. screens, baffles or rotating elements
    • 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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • 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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/36—Arrangements for supply of additional fuel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F2025/93—Arrangements, nature or configuration of flow guiding elements
    • B01F2025/931—Flow guiding elements surrounding feed openings, e.g. jet nozzles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
    • B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
    • B01F23/2132—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
    • 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
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/06—Adding substances to exhaust gases the substance being in the gaseous form
    • 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
    • F01N3/023—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 using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/025—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 using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
    • F01N3/0253—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 using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
    • 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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

1. Смешивающее устройство (2) для последующей обработки отработанного газа в выхлопной системе двигателя внутреннего сгорания, которое включает в себя корпус (4) с имеющим входное поперечное сечение входным отверстием (24) и расположенную внутри корпуса (4) внутреннюю трубку (6) с образованной внутри внутренней трубки (6) областью (8) смешения, причем на торце корпуса (4) расположено дозирующее устройство (10) для подачи жидкости и/или смеси (14) жидкость-газ, и причем внутренняя трубка (6) на боковой поверхности (16) имеет проходные отверстия (18), через которые отработанный газ может поступать в область (8) смешения, отличающееся тем, что корпус (4) имеет спиральный участок (22) корпуса, причем данный спиральный участок (22) корпуса проходит по меньшей мере вдоль всех проходных отверстий (18) внутренней трубки (6).2. Смешивающее устройство (2) по п.1, отличающееся тем, что образованное проходными отверстиями (18) проходное поперечное сечение уменьшается по направлению к обращенному от дозирующего устройства (10) аксиальному концу внутренней трубки (6).3. Смешивающее устройство (2) по п.2, отличающееся тем, что количество проходных отверстий (18) по направлению к обращенному от дозирующего устройства (10) аксиальному концу внутренней трубки (6) уменьшается по меньшей мере на отдельных областях.4. Смешивающее устройство (2) по одному из предшествующих пунктов, отличающееся тем, что площадь поперечного сечения проходных отверстий (18) по направлению к обращенному от дозирующего устройства (10) аксиальному концу уменьшается по меньшей мере на отдельных областях.5. Смешивающее устройство (2) по одному из пп.1-3, отличающееся тем, что впускная труба (26) для отр1. A mixing device (2) for the subsequent treatment of the exhaust gas in the exhaust system of an internal combustion engine, which includes a housing (4) with an inlet opening (24) having an inlet cross section and an inner tube (6) located inside the housing (4) with the mixing region (8) formed inside the inner tube (6), and at the end of the housing (4) there is a metering device (10) for supplying liquid and / or liquid-gas mixture (14), and the inner tube (6) on the side surface (16) has through holes (18) through The exhaust gas may enter the mixing region (8), characterized in that the housing (4) has a spiral housing section (22), and this spiral housing section (22) extends along at least all the passage openings (18) of the inner tube ( 6) .2. A mixing device (2) according to claim 1, characterized in that the passage cross section formed by the passage openings (18) decreases towards the axial end of the inner tube (6) facing away from the metering device (10). 3. A mixing device (2) according to claim 2, characterized in that the number of passage holes (18) towards the axial end of the inner tube (6) facing away from the metering device (10) is reduced at least in separate areas. A mixing device (2) according to one of the preceding paragraphs, characterized in that the cross-sectional area of the passage openings (18) towards the axial end facing away from the metering device (10) is reduced in at least certain areas. The mixing device (2) according to one of claims 1 to 3, characterized in that the inlet pipe (26) for

Claims (15)

1. Смешивающее устройство (2) для последующей обработки отработанного газа в выхлопной системе двигателя внутреннего сгорания, которое включает в себя корпус (4) с имеющим входное поперечное сечение входным отверстием (24) и расположенную внутри корпуса (4) внутреннюю трубку (6) с образованной внутри внутренней трубки (6) областью (8) смешения, причем на торце корпуса (4) расположено дозирующее устройство (10) для подачи жидкости и/или смеси (14) жидкость-газ, и причем внутренняя трубка (6) на боковой поверхности (16) имеет проходные отверстия (18), через которые отработанный газ может поступать в область (8) смешения, отличающееся тем, что корпус (4) имеет спиральный участок (22) корпуса, причем данный спиральный участок (22) корпуса проходит по меньшей мере вдоль всех проходных отверстий (18) внутренней трубки (6).1. A mixing device (2) for the subsequent treatment of the exhaust gas in the exhaust system of an internal combustion engine, which includes a housing (4) with an inlet opening (24) having an inlet cross section and an inner tube (6) located inside the housing (4) with the mixing region (8) formed inside the inner tube (6), and at the end of the housing (4) there is a metering device (10) for supplying liquid and / or liquid-gas mixture (14), and the inner tube (6) on the side surface (16) has through holes (18) through The exhaust gas may enter the mixing region (8), characterized in that the housing (4) has a spiral housing section (22), and this spiral housing section (22) extends along at least all the passage openings (18) of the inner tube ( 6). 2. Смешивающее устройство (2) по п.1, отличающееся тем, что образованное проходными отверстиями (18) проходное поперечное сечение уменьшается по направлению к обращенному от дозирующего устройства (10) аксиальному концу внутренней трубки (6).2. The mixing device (2) according to claim 1, characterized in that the passage cross section formed by the passage openings (18) decreases towards the axial end of the inner tube (6) facing away from the metering device (10). 3. Смешивающее устройство (2) по п.2, отличающееся тем, что количество проходных отверстий (18) по направлению к обращенному от дозирующего устройства (10) аксиальному концу внутренней трубки (6) уменьшается по меньшей мере на отдельных областях.3. A mixing device (2) according to claim 2, characterized in that the number of passage holes (18) towards the axial end of the inner tube (6) facing away from the metering device (10) is reduced at least in separate areas. 4. Смешивающее устройство (2) по одному из предшествующих пунктов, отличающееся тем, что площадь поперечного сечения проходных отверстий (18) по направлению к обращенному от дозирующего устройства (10) аксиальному концу уменьшается по меньшей мере на отдельных областях.4. The mixing device (2) according to one of the preceding paragraphs, characterized in that the cross-sectional area of the passage openings (18) towards the axial end facing away from the metering device (10) is reduced at least in certain areas. 5. Смешивающее устройство (2) по одному из пп.1-3, отличающееся тем, что впускная труба (26) для отработанного газа по меньшей мере частично проходит в корпусе (4), причем продольная центральная ось впускной трубы (26) для отработанного газа и продольная центральная ось внутренней трубки (6) ориентированы по существу параллельно друг к другу.5. A mixing device (2) according to one of claims 1 to 3, characterized in that the inlet pipe (26) for the exhaust gas at least partially passes in the housing (4), the longitudinal central axis of the inlet pipe (26) for the spent gas and the longitudinal Central axis of the inner tube (6) are oriented essentially parallel to each other. 6. Смешивающее устройство (2) по п.5, отличающееся тем, что впускная труба (26) для отработанного газа проходит внутри корпуса (4) по меньшей мере вдоль спирального участка (22) корпуса, причем впускная труба (26) для отработанного газа на проходящей вдоль спирального участка (22) корпуса окружной поверхности (30) имеет выходные отверстия (28).6. A mixing device (2) according to claim 5, characterized in that the inlet pipe (26) for the exhaust gas extends inside the housing (4) at least along the spiral portion (22) of the housing, wherein the inlet pipe (26) for the exhaust gas on the circumferential surface (30) passing along the spiral portion (22) of the housing, it has outlet openings (28). 7. Смешивающее устройство (2) по одному из пп.1-3, отличающееся тем, что внутренняя трубка (6) имеет форму круглого цилиндра или конуса.7. The mixing device (2) according to one of claims 1 to 3, characterized in that the inner tube (6) has the shape of a round cylinder or cone. 8. Смешивающее устройство (2) по п.1, отличающееся тем, что проходные отверстия (18) снабжены направляющими элементами (20) для отработанного газа, которые выступают от главной протяженности боковой поверхности (16).8. The mixing device (2) according to claim 1, characterized in that the passage openings (18) are provided with guide elements (20) for the exhaust gas, which protrude from the main length of the side surface (16). 9. Смешивающее устройство (2) по п.8, отличающееся тем, что направляющие элементы (20) для отработанного газа проходят по меньшей мере в области (8) смешения.9. A mixing device (2) according to claim 8, characterized in that the guide elements (20) for the exhaust gas pass at least in the mixing region (8). 10. Смешивающее устройство (2) по п.8 или 9, отличающееся тем, что направляющие элементы (20) для отработанного газа выполнены за одно целое с боковой поверхностью (16) внутренней трубки (6).10. A mixing device (2) according to claim 8 or 9, characterized in that the guide elements (20) for the exhaust gas are made integrally with the side surface (16) of the inner tube (6). 11. Смешивающее устройство (2) по п.8 или 9, отличающееся тем, что проекция оси (36) открывания направляющего элемента (20) для отработанного газа на проходящую через проходное отверстие (18) направляющего элемента (20) для отработанного газа среднюю продольную плоскость (38) внутренней трубки (6) образует с продольной центральной осью внутренней трубки (6) угол (β) наклона от 5° до 90°, предпочтительно от 30° до 50°, особенно предпочтительно от 35° до 40°.11. A mixing device (2) according to claim 8 or 9, characterized in that the projection of the axis (36) of the opening of the guide element (20) for the exhaust gas to the middle longitudinal passing through the passage (18) of the guide element (20) for the exhaust gas the plane (38) of the inner tube (6) forms, with the longitudinal central axis of the inner tube (6), an inclination angle (β) of 5 ° to 90 °, preferably 30 ° to 50 °, particularly preferably 35 ° to 40 °. 12. Смешивающее устройство (2) по п.8 или 9, отличающееся тем, что ось (36) открывания направляющего элемента (20) для отработанного газа с проходящей через проходное отверстие (18) направляющего элемента (20) для отработанного газа средней продольной плоскостью (38) внутренней трубки (6) образует ориентирующий угол (α) от 0° до 90°, предпочтительно от 10° до 90°, особенно предпочтительно от 20° до 90°.12. A mixing device (2) according to claim 8 or 9, characterized in that the axis (36) of the opening of the guide element (20) for the exhaust gas with the guide element (20) for the exhaust gas passing through the passage opening (18) of the middle longitudinal plane (38) the inner tube (6) forms an orientation angle (α) from 0 ° to 90 °, preferably from 10 ° to 90 °, particularly preferably from 20 ° to 90 °. 13. Смешивающее устройство (2) по пп.1-3, отличающееся тем, что дозирующее устройство (10) расположено коаксиально с продольной центральной осью внутренней трубки (6).13. The mixing device (2) according to claims 1 to 3, characterized in that the metering device (10) is located coaxially with the longitudinal central axis of the inner tube (6). 14. Смешивающее устройство (2) по пп.1-3, отличающееся тем, что образованное проходными отверстиями (18) проходное поперечное сечение составляет от 80% до 300% входного поперечного сечения входного отверстия (24), предпочтительно от 90% до 250%.14. The mixing device (2) according to claims 1 to 3, characterized in that the passage cross section formed by the passage openings (18) is from 80% to 300% of the inlet cross section of the inlet (24), preferably from 90% to 250% . 15. Способ смешивания отработанного газа с жидкостью и/или смесью жидкость-газ с применением смешивающего устройства (2) по одному из пп.1-14. 15. A method of mixing exhaust gas with a liquid and / or a liquid-gas mixture using a mixing device (2) according to one of claims 1 to 14.
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