EP2977576B1 - Dispositif de post-traitement de gaz d'échappement - Google Patents

Dispositif de post-traitement de gaz d'échappement Download PDF

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Publication number
EP2977576B1
EP2977576B1 EP15001908.1A EP15001908A EP2977576B1 EP 2977576 B1 EP2977576 B1 EP 2977576B1 EP 15001908 A EP15001908 A EP 15001908A EP 2977576 B1 EP2977576 B1 EP 2977576B1
Authority
EP
European Patent Office
Prior art keywords
exhaust gas
exhaust
internal combustion
combustion engine
aftertreatment device
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.)
Active
Application number
EP15001908.1A
Other languages
German (de)
English (en)
Other versions
EP2977576A1 (fr
Inventor
Friedhelm Hillen
Arne Bienholz
Bhuvaneswaran Manickam
Marco Dris Paul
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Innio Jenbacher GmbH and Co OG
Original Assignee
GE Jenbacher GmbH and Co OHG
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 GE Jenbacher GmbH and Co OHG filed Critical GE Jenbacher GmbH and Co OHG
Publication of EP2977576A1 publication Critical patent/EP2977576A1/fr
Application granted granted Critical
Publication of EP2977576B1 publication Critical patent/EP2977576B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • 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
    • F01N3/2053—By-passing catalytic reactors, e.g. to prevent overheating
    • 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
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/011—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel
    • F01N13/017—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more purifying devices arranged in parallel the purifying devices are arranged in a single housing
    • 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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/08—Other arrangements or adaptations of exhaust conduits
    • F01N13/10—Other arrangements or adaptations of exhaust conduits of exhaust manifolds
    • F01N13/107—More than one exhaust manifold or exhaust collector
    • 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
    • F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other 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
    • F01N2470/00—Structure or shape of gas passages, pipes or tubes
    • F01N2470/16—Plurality of inlet tubes, e.g. discharging into different chambers
    • 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
    • F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
    • F01N2590/10—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for stationary applications

Definitions

  • the invention relates to an exhaust aftertreatment device for an internal combustion engine having the features of the preamble of claim 1.
  • stationary combustion engines are often used. They have up to 24 cylinders. The cylinders are usually split in a V-arrangement on two cylinder banks.
  • stationary internal combustion engines are often equipped with systems for exhaust aftertreatment. For example, to reduce the emissions of unburned hydrocarbons and carbon monoxide, oxidizers in the form of oxidation catalysts are used. For the reduction of nitrogen oxides catalysts are often used for selective catalytic reduction.
  • Systems for exhaust aftertreatment of stationary internal combustion engines thus often contain catalytically active assemblies, called catalyst units in a row.
  • the object of the present invention is to provide an exhaust aftertreatment device for an internal combustion engine, in which the disadvantages of the prior art are avoided.
  • the two catalyst units and the bypass line are arranged in a common housing, wherein the housing has two separate supply lines for untreated exhaust gas and at least one outlet line for treated by the two catalyst units exhaust gas is thus achieved that creates a compact design of the exhaust aftertreatment device is and the guided through the bypass line exhaust gases for heating the at least two catalyst units.
  • the separate supply lines for untreated exhaust gas are each connected to a cylinder bank of the internal combustion engine.
  • the exhaust gases of the internal combustion engine flow via the separate untreated exhaust gas supply lines into the exhaust aftertreatment device so that the exhaust gases from the one cylinder bank through the one separate supply line and the exhaust gases from the other Cylinder bank through the second separate feed line in the exhaust aftertreatment device occur.
  • a catalyst unit can be modularly constructed from catalyst elements.
  • the amount of exhaust gas flowing out of the exhaust gas aftertreatment device via the bypass line can be controlled or regulated by a first valve.
  • a first valve By this is meant that the proportion of bypassed exhaust gas is controllable or controllable via a valve which is arranged in the bypass line.
  • the amount of exhaust gas flowing out of the exhaust gas aftertreatment device via the catalyst unit can be controlled or regulated by a second valve.
  • the proportion of bypassed exhaust gas can be controlled or regulated via a second valve, which is arranged in the flow path of the exhaust gases treated in the catalytic converter unit.
  • FIG. 1 schematically shows an exhaust aftertreatment device 1 in a cross section.
  • the separate feed lines 11, 11 ' via which untreated exhaust enters the exhaust aftertreatment device 1.
  • the exhaust gas flows through a mixing device 5.
  • the exhaust gas passes through a flow compensation device (also optional) and reaches the catalyst unit 3.
  • the valve V1 When the valve V1 is open, the exhaust gas flows through the bypass line 4 and leaves the exhaust gas aftertreatment device 1 via the outlet line 7 For full bypass valve V2 remains closed.
  • the apparatus shown can of course also be operated so that the valves V1 and V2 not only be kept in their fully open or fully closed position, but that both valves V1 and V2 are partially open, so that only a portion of the exhaust gas mass flow through the bypass line 4 flows.
  • the catalyst unit 3 and the bypass line 4 are arranged in a common housing 2.
  • the outlet lines 7 and 8 are combined after exiting the exhaust aftertreatment device 1 in the rule and combined to form an exhaust pipe. This detail is not shown here.
  • FIG. 2 shows an exhaust aftertreatment device 1 in an alternative embodiment.
  • the valve V1 is designed as a switch which alternately releases or closes the outlet line 7 for exhaust gas treated in the catalyst unit 3 or the outlet line 8 for exhaust gas conducted via the bypass line 4.
  • both flow paths 7 and 8 can be switched by only one component.
  • the switch may for example be designed as a rotary valve or in the simplest case as a flap.
  • the outlet lines 7 and 8 are preferably summarized downstream of the switch to a wiring harness.
  • the exhaust aftertreatment device 1 can be made particularly compact and with simple actuators.
  • FIG. 3 shows an exhaust aftertreatment device 1 in a further alternative embodiment.
  • the valve V1 is arranged so that the exhaust gases exit the exhaust gas aftertreatment device 1 with the valve V1 closed through the catalyst unit 3 and finally through the outlet line 8.
  • the outlet line 8 in a section located in the interior of the housing 2 has a perforation, ie openings through which the post-treated by the catalyst unit 3 exhaust gas can occur. If valve V1 is opened, the exhaust gases will preferentially choose the path through the bypass line 4 due to the lower flow resistance and escape through the outlet line 8 untreated.
  • valve V1 to determine whether the exhaust gases for the bypass line 4 and finally the outlet line 8 untreated escape from the exhaust aftertreatment device 1, or if the exhaust gases treated by the catalyst unit 3 exit from the exhaust aftertreatment device 1 via the outlet line 8.
  • FIG. 4 shows an arrangement with an exhaust aftertreatment device 1, an internal combustion engine 12 and a control device C.
  • the arrangement shows an example of an exhaust aftertreatment device 1 according to embodiment of the FIG. 1 ,
  • the exhaust aftertreatment device 1 may be designed according to any other embodiment.
  • the cylinder banks of the internal combustion engine 12 are designated by the reference symbols A and B.
  • Cylinder bank A comprises the cylinders of one cylinder bank, cylinder bank B the cylinders of the other cylinder bank.
  • the cylinder bank A is connected via the exhaust pipe L1 to the inlet pipe 11 with the exhaust gas aftertreatment device 1.
  • the cylinder bank B is connected via the exhaust gas line L2 to the inlet line 11 'with the exhaust gas aftertreatment device 1.
  • the valves V1, V2 receive commands from the controller C to open or close.
  • the control / regulating device C is set up so that information about engine sizes, exhaust-gas temperatures, if necessary component temperatures can be supplied and processed.
  • the associated sensors and signal lines are not shown, and are carried out as is familiar to those skilled in the art.

Landscapes

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

Claims (4)

  1. Mécanisme destiné à la purification en aval des gaz d'échappement (1) pour un moteur à combustion interne (12), en particulier un moteur stationnaire à combustion interne, comprenant deux unités à catalyseur (3) pour les gaz d'échappement qui sont disposées en aval du moteur à combustion interne (12), selon lequel les gaz d'échappement du moteur à combustion interne peuvent être amenés à transiter devant les deux unités à catalyseur (3) par l'intermédiaire d'une conduite de dérivation (4), caractérisé en ce que les deux unités à catalyseur (3) et la conduite de dérivation (4) sont disposées dans un carter (2) commun, selon lequel le carter (2) présente deux conduites d'alimentation (11, 11') séparées pour le gaz d'échappement non traité et au moins une conduite de sortie (7, 8) pour le gaz d'échappement qui a été traité par les deux unités à catalyseur (3), selon lequel les deux conduites d'alimentation (11, 11') séparées qui se trouvent dans le carter (2) débouchent respectivement dans des unités à catalyseur (3) séparées.
  2. Mécanisme destiné à la purification en aval des gaz d'échappement (1) selon la revendication 1, selon lequel le moteur à combustion interne (12) présente au moins deux rangées de cylindres (A, B), caractérisé en ce que les conduites d'alimentation (11, 11') séparées pour le gaz d'échappement non traité sont raccordées respectivement à une rangée de cylindres (A, B) du moteur à combustion interne (12).
  3. Mécanisme destiné à la purification en aval des gaz d'échappement (1) selon tout au moins l'une des revendications précédentes, caractérisé en ce que la quantité du gaz d'échappement émergeant du mécanisme destiné à la purification en aval des gaz d'échappement (1), par l'intermédiaire de la conduite de dérivation (4), peut être commandée ou peut être régulée au moyen d'une première soupape (V1).
  4. Mécanisme destiné à la purification en aval des gaz d'échappement (1) selon tout au moins l'une des revendications précédentes, caractérisé en ce que la quantité du gaz d'échappement (1) émergeant du mécanisme destiné à la purification en aval des gaz d'échappement, par l'intermédiaire des deux unités à catalyseur (3), peut être commandée ou peut être régulée est au moyen d'une deuxième soupape (V2).
EP15001908.1A 2014-07-21 2015-06-26 Dispositif de post-traitement de gaz d'échappement Active EP2977576B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ATA572/2014A AT516110B1 (de) 2014-07-21 2014-07-21 Abgasnachbehandlungseinrichtung

Publications (2)

Publication Number Publication Date
EP2977576A1 EP2977576A1 (fr) 2016-01-27
EP2977576B1 true EP2977576B1 (fr) 2017-08-09

Family

ID=53496366

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Application Number Title Priority Date Filing Date
EP15001908.1A Active EP2977576B1 (fr) 2014-07-21 2015-06-26 Dispositif de post-traitement de gaz d'échappement

Country Status (7)

Country Link
US (1) US10458299B2 (fr)
EP (1) EP2977576B1 (fr)
JP (1) JP6431819B2 (fr)
KR (1) KR101704911B1 (fr)
CN (1) CN105275553B (fr)
AT (1) AT516110B1 (fr)
BR (1) BR102015016357A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT517669A1 (de) * 2015-09-04 2017-03-15 Ge Jenbacher Gmbh & Co Og Brennkraftmaschine
KR102228304B1 (ko) 2016-06-03 2021-03-15 현대중공업 주식회사 온도분포 균일성이 향상된 scr 반응기

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Also Published As

Publication number Publication date
KR101704911B1 (ko) 2017-02-08
JP2016029277A (ja) 2016-03-03
BR102015016357A2 (pt) 2016-03-01
EP2977576A1 (fr) 2016-01-27
JP6431819B2 (ja) 2018-11-28
US20160017779A1 (en) 2016-01-21
KR20160011165A (ko) 2016-01-29
CN105275553A (zh) 2016-01-27
CN105275553B (zh) 2019-10-01
AT516110B1 (de) 2016-08-15
US10458299B2 (en) 2019-10-29
AT516110A1 (de) 2016-02-15

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