WO2015141469A1 - 船舶の排気ガス浄化システム - Google Patents
船舶の排気ガス浄化システム Download PDFInfo
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- WO2015141469A1 WO2015141469A1 PCT/JP2015/056376 JP2015056376W WO2015141469A1 WO 2015141469 A1 WO2015141469 A1 WO 2015141469A1 JP 2015056376 W JP2015056376 W JP 2015056376W WO 2015141469 A1 WO2015141469 A1 WO 2015141469A1
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- Prior art keywords
- path
- exhaust gas
- main
- switching valve
- bypass
- Prior art date
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Images
Classifications
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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
- F01N3/24—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9404—Removing only nitrogen compounds
- B01D53/9409—Nitrogen oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/92—Chemical or biological purification of waste gases of engine exhaust gases
- B01D53/94—Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
- B01D53/9495—Controlling the catalytic process
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- 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
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- 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
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- 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
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/4315—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor the baffles being deformed flat pieces of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/32—Arrangements of propulsion power-unit exhaust uptakes; Funnels peculiar to vessels
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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]
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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
- F01N9/00—Electrical control of exhaust gas treating apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
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- B01D2251/2067—Urea
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- B01D2258/01—Engine exhaust gases
- B01D2258/012—Diesel engines and lean burn gasoline engines
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/45—Gas separation or purification devices adapted for specific applications
- B01D2259/4566—Gas separation or purification devices adapted for specific applications for use in transportation means
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- 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
- B01F2025/91—Direction of flow or arrangement of feed and discharge openings
- B01F2025/913—Vortex flow, i.e. flow spiraling in a tangential direction and moving in an axial direction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
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- B01F2025/93—Arrangements, nature or configuration of flow guiding elements
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- 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
- B01F25/40—Static mixers
- B01F25/42—Static mixers in which the mixing is affected by moving the components jointly in changing directions, e.g. in tubes provided with baffles or obstructions
- B01F25/43—Mixing tubes, e.g. wherein the material is moved in a radial or partly reversed direction
- B01F25/431—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor
- B01F25/43197—Straight mixing tubes with baffles or obstructions that do not cause substantial pressure drop; Baffles therefor characterised by the mounting of the baffles or obstructions
- B01F25/431972—Mounted on an axial support member, e.g. a rod or bar
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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
- 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
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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
- 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
- F01N2240/36—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 an exhaust flap
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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
- F01N2390/00—Arrangements for controlling or regulating exhaust apparatus
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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
- F01N2410/00—By-passing, at least partially, exhaust from inlet to outlet of apparatus, to atmosphere or to other device
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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
- F01N2590/00—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines
- F01N2590/02—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for marine vessels or naval applications
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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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
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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
- 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
-
- 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
- Y02T10/40—Engine management systems
Definitions
- the present invention relates to an exhaust gas purification system that removes harmful components in exhaust gas discharged from a ship-mounted engine.
- diesel A diesel generator that combines an engine and a generator that generates electricity by driving the diesel engine (see, for example, Patent Document 1).
- Diesel engines are known to be one of the most energy efficient types of internal combustion engines, and the amount of carbon dioxide contained in exhaust gas per unit output is small.
- a low-quality fuel such as heavy oil can be used, there is an advantage that it is economically excellent.
- the exhaust gas of a diesel engine contains a large amount of nitrogen oxides, sulfur oxides and particulate matter. These are mainly derived from heavy oil, which is a fuel, and are harmful substances that hinder environmental conservation. In particular, nitrogen oxides (hereinafter referred to as NOx) are harmful to human bodies and exhibit strong acidity, and are also considered to cause acid rain. Accordingly, it is understood that a machine that drives a diesel generator, such as a ship, has a very large amount of NOx emission and a large burden on the global environment.
- a selective catalytic reduction method (hereinafter referred to as SCR method) using urea as a reducing agent has become common as a post-treatment means for greatly purifying NOx.
- the SCR method uses a NOx catalyst having a honeycomb structure made of a material in which an active component such as V or Cr is supported on an oxide carrier such as Ti.
- an active component such as V or Cr
- an oxide carrier such as Ti.
- the applicant of the present application has previously provided a purification casing that accommodates the NOx catalyst in the exhaust path of the engine, and bypasses the exhaust gas from the upstream side of the purification casing in the exhaust path without bypassing the NOx catalyst.
- a purification casing that accommodates the NOx catalyst in the exhaust path of the engine, and bypasses the exhaust gas from the upstream side of the purification casing in the exhaust path without bypassing the NOx catalyst.
- An object of the present invention is to provide a ship exhaust gas purification system that has been improved by examining the current situation as described above.
- a ship exhaust gas purification system including a main path communicating with the outside and a bypass path branched from a midway portion of the main path as an exhaust path of a ship-mounted engine.
- a fluid-operated switching valve that opens and closes each path is disposed in the main path and the bypass path, and each switching valve is configured as a normally open type. .
- the fluid supply to the two switching valves is turned off, After the switching valve is opened, fluid is supplied to one switching valve that is closed.
- a main path communicating with the outside and a branch from a middle portion of the main path are branched
- a switching valve is disposed on both the main path and the bypass path, and the valve body of the switching valve on the main path side is exhausted in the open state of the switching valve.
- Mixing fins that make the gas flow turbulent are provided, and a reducing agent injection nozzle is arranged downstream of the switching valve on the main path side.
- a ship exhaust gas purification system comprising a main path communicating with the outside and a bypass path branched from a midway portion of the main path as an exhaust path for an engine mounted on a ship.
- a switching valve that opens and closes each path is disposed on the main path and the bypass path, and the both switching valves are interlocked so as to close the other when one is opened via a link mechanism. It is connected.
- the invention of claim 5 is the ship exhaust gas purification system according to claim 4, wherein the link mechanism is doubled.
- An exhaust gas purification system for a ship includes an exhaust gas purification system comprising, as an exhaust path of an engine for mounting on a ship, a main path communicating with the outside and a bypass path branched from a midway portion of the main path.
- a switching valve that opens and closes each of the paths is arranged in the main path and the bypass path, and both the switching valves are supported by a single rotating shaft.
- the mounting phase of the two switching valves is different by 90 ° with respect to the single rotating shaft.
- the fluid-operated switching valve that opens and closes each path is configured as a normally open type, the switching valve is used when the exhaust gas path is switched while the engine is operating. Even when the fluid supply to is simultaneously turned off, the main path and the bypass path are not simultaneously closed. Therefore, even if the switching valve fails, the exhaust gas path is not blocked while the engine is operating, and the engine can be prevented from stopping.
- the mixing fin is provided in the valve body of the switching valve on the main path side, and the reducing agent injection nozzle is disposed on the downstream side of the switching valve on the main path side. Since the reducing agent is injected into the exhaust gas turbulent by the fins, the exhaust gas and the reducing agent can be mixed efficiently. Therefore, NOx in the exhaust gas can be efficiently reduced, and NOx in the exhaust gas can be removed as much as possible.
- the switching valve that opens and closes each of the paths is interlocked so that when one of the switching valves is opened via the link mechanism, the other is closed. It is possible to prevent both paths from being fully closed, and the main path and the bypass path are not simultaneously closed. Therefore, the exhaust gas path is not blocked while the engine is operating, and the engine can be prevented from stopping.
- both switching valves can be operated by the other link mechanism, and both paths can be operated simultaneously. It is possible to reliably prevent complete blockage. Further, the redundancy of the interlocking structure of both switching valves can be improved.
- both switching valves can be interlocked by the single rotating shaft, and the interlocking structure of both switching valves. Can be simplified.
- the mounting phase of the two switching valves is different by 90 ° with respect to the single rotation shaft, when the two switching valves are interlocked, when one is opened, the other is closed.
- either one of the switching valves can be always opened, and the main path and the bypass path are not closed at the same time. Therefore, it is possible to reliably prevent the two paths from being completely closed simultaneously while the engine is operating with a simple structure.
- FIG. 2 is a front sectional view taken along the line II-II in FIG. 1. It is a front view of a composite casing. It is a side view of a composite casing. It is a rear view of a composite casing. It is side surface sectional drawing of a composite casing. It is a cross-sectional perspective view which shows the internal structure of an exhaust mixer. It is the front view which looked at the exhaust mixer from the exhaust gas moving direction upstream. It is side surface sectional drawing of an exhaust mixer. It is side surface sectional drawing explaining the exhaust gas flow which goes to a composite casing from an exhaust mixer. It is a circuit diagram of the fluid circulation piping which operates a switching valve.
- the ship 1 of the first embodiment is provided with a hull 2, a cabin 3 (bridge) provided on the stern side of the hull 2, a funnel 4 (chimney) arranged behind the cabin 3, and a rear lower part of the hull 2.
- a propeller 5 and a rudder 6 are provided.
- the skeg 8 is integrally formed on the bottom 7 of the stern side.
- a propeller shaft 9 that rotationally drives the propeller 5 is supported on the skeg 8.
- a hold 10 is provided on the bow side and the center in the hull 2.
- An engine room 11 is provided on the stern side in the hull 2.
- a main engine 21 diesel engine in the first embodiment
- a speed reducer 22 that are driving sources of the propeller 5
- a power generation device 23 for supplying electric power to the electrical system in the hull 2 are arranged. is doing.
- the propeller 5 is rotationally driven by the rotational power from the main engine 21 via the speed reducer 22.
- the interior of the engine room 11 is partitioned vertically by an upper deck 13, a second deck 14, a third deck 15, and an inner bottom plate 16.
- the main engine 21 and the speed reducer 22 are installed on the inner bottom plate 16 at the lowest stage of the engine room 11, and the power generator 23 is installed on the third deck 15 at the middle stage of the engine room 11.
- the hold 10 is divided into a plurality of sections.
- the power generator 23 includes a plurality of diesel generators 24 (three in the first embodiment).
- the diesel generator 24 is configured by combining a power generation engine 25 (a diesel engine in the first embodiment) and a power generator 26 that generates power by driving the power generation engine 25.
- the diesel generator 24 is basically configured to operate efficiently in accordance with the required power amount in the hull 2. For example, all the diesel generators 24 are operated at the time of entry / exit that consumes a large amount of power, and an arbitrary number of diesel generators 24 are operated at the time of berthing where the power consumption is relatively low.
- the generated power generated by the operation of each generator 26 is supplied to the electrical system in the hull 2.
- a power transducer is electrically connected to each generator 26. The power transducer detects power generated by each generator 26.
- Each power generation engine 25 is connected to an intake path (not shown) for air intake and an exhaust path 30 for exhaust gas discharge.
- the air taken in through the intake path is sent into each cylinder of the power generation engine 25 (inside the cylinder in the intake stroke).
- the compression stroke of each cylinder is completed, the fuel sucked up from the fuel tank is pumped into the combustion chamber of each cylinder by the fuel injection device, and the expansion stroke accompanying the self-ignition combustion of the air-fuel mixture is performed by each combustion chamber.
- the exhaust path 30 of each power generation engine 25 extends to the funnel 4 and directly communicates with the outside. As described above, since there are three power generation engines 25, there are three exhaust paths 30.
- the exhaust path 30 of each power generation engine 25 includes a main path 31 extending to the funnel 4, a bypass path 32 branched from a middle portion of the main path 31, and a composite casing communicating with both the main path 31 and the bypass path 32. 33. That is, in the first embodiment, a plurality of power generation engines 25 are mounted, and an exhaust gas purification system including the main path 31, the bypass path 32, the composite casing 33, and the like is associated with each power generation engine 25 on a one-to-one basis. Yes.
- the composite casing 33 is made of a heat-resistant metal material and has a substantially cylindrical shape (in the first embodiment, a rectangular tube shape), and is disposed above the third deck 15 on which the power generation engines 25 are disposed. In this case, the composite casing 33 is located on the upper side of the engine room 11 (on the second deck 14 on the upper stage of the engine room 11).
- a NOx catalyst 34 and a slip treatment catalyst 35 (details will be described later) serving as a selective catalyst reduction device that promotes reduction of NOx in the exhaust gas of the power generation engine 25 are accommodated.
- the bypass path 32 is a path for bypassing the exhaust gas without passing through the NOx catalyst 34 and the slip treatment catalyst 35.
- the main path 31 and the bypass path 32 are merged at the exhaust outlet portion 42 of the composite casing 33 (the downstream side in the exhaust gas movement direction (hereinafter simply referred to as the downstream side) from the slip treatment catalyst 35).
- the NOx catalyst 34 may be used without the slip treatment catalyst 35.
- the main side which is a fluid-operated switching valve is used as a path switching member for switching the exhaust gas movement direction between the main path 31 and the bypass path 32.
- a switching valve 37 and a bypass side switching valve 38 are provided.
- the main side switching valve 37 and the bypass side switching valve 38 of the present embodiment are configured by a single-acting switching valve.
- the main-side switching valve 37 and the bypass-side switching valve 38 are composed of air-actuated butterfly valves.
- the main side switching valve 37 is provided on the inlet side to the composite casing 33 in the main path 31.
- the bypass side switching valve 38 is provided on the inlet side to the composite casing 33 in the bypass path 32.
- the main path 31 side in the composite casing 33 includes, in order from the upstream side in the exhaust gas movement direction (hereinafter simply referred to as the upstream side), a NOx catalyst 34 that promotes reduction of NOx in the exhaust gas, and an excessively supplied reducing agent.
- a slip treatment catalyst 35 that promotes an oxidation treatment of (urea water (urea aqueous solution), more specifically, ammonia after hydrolysis) is accommodated in series.
- Each of the catalysts 34 and 35 has a honeycomb structure composed of a large number of cells partitioned by porous (filterable) partition walls, and has a catalytic metal such as alumina, zirconia, vanadia / titania or zeolite. is doing.
- the NOx catalyst 34 selectively reduces NOx in the exhaust gas to the main path 31 side in the composite casing 33 by using ammonia generated by hydrolysis of urea water from the urea water injection nozzle 61 described later as a reducing agent.
- the sent exhaust gas is purified.
- the slip treatment catalyst 35 oxidizes unreacted (surplus) ammonia flowing out from the NOx catalyst 34 to harmless nitrogen.
- both the main path 31 and the bypass path 32 are provided side by side in the composite casing 33.
- a partition plate 40 extending along the exhaust gas movement direction is disposed in the composite casing 33.
- the presence of the partition plate 40 partitions the composite casing 33 into a main path 31 side and a bypass path 32 side.
- the upstream end of the partition plate 40 is abutted and fixed to the front inner surface of the exhaust inlet 41 located upstream of the NOx catalyst 34 on the main path 31 side in the composite casing 33.
- the exhaust inlet 41 on the main path 31 side in the composite casing 33 is formed in a tapered shape (conical shape) that decreases in cross-sectional area toward the upstream side.
- the downstream end portion of the partition plate 40 is interrupted in the exhaust outlet portion 42 on the downstream side of the slip treatment catalyst 35 in the composite casing 33. For this reason, in the exhaust outlet part 42 of the composite casing 33, the main path 31 side and the bypass path 32 side merge.
- a plurality of jet nozzles 43 as jet gases are attached to one side of the composite casing 33 on the upstream side of the NOx catalyst 34 and the upstream side of the slip treatment catalyst 35.
- three jet nozzles 43 are provided on one side of the composite casing 33 on the upstream side of the NOx catalyst 34, and three jet nozzles 43 are provided on one side of the composite casing 33 on the upstream side of the slip treatment catalyst 35. It is provided on the side.
- Compressed gas (air) from a gas supply source (not shown) is blown toward the NOx catalyst 34 and the slip treatment catalyst 35 by each blast nozzle 43.
- a plurality of inspection opening windows 44 are formed on the other side of the composite casing 33.
- Each inspection opening window 44 is formed for the inspection and maintenance of the inside of the composite casing 33, the jet nozzle 43, the NOx catalyst 34, and the slip treatment catalyst 35.
- Each inspection opening window 44 is normally closed by a lid cover 45 so as to be opened and closed.
- Each lid cover 45 is detachably fastened to the peripheral edge of the corresponding inspection opening window 44 with a bolt.
- a main side inlet 47 and a bypass side inlet 48 are formed on the front side of the exhaust inlet 41 of the composite casing 33.
- the main side inlet 47 communicates with the main path 31 in the composite casing 33
- the bypass side inlet 48 communicates with the bypass path 32 in the composite casing 33.
- a main-side introduction pipe 51 that communicates with the main-side inlet 47 and a bypass-side introduction pipe 52 that communicates with the bypass-side inlet 48 are provided on the front outer surface side of the exhaust inlet 41 of the composite casing 33.
- the main side introduction pipe 51 and the bypass side introduction pipe 52 are connected to the bifurcated pipe 53 via relay pipes 55 and 56, respectively.
- the inlet side of the main relay pipe 55 is fastened to the main outlet part 57 of the bifurcated pipe 53 via a flange.
- the other end side of the main side relay pipe 55 communicates with the main side introduction pipe 51.
- An inlet side of the bypass side relay pipe 56 is fastened to the bypass side outlet portion 58 of the bifurcated pipe 53 via a flange.
- the outlet side of the bypass side relay pipe 56 is fastened with a bypass side introduction pipe 52 via an adjustment pipe 69 having a bellows structure for adjusting the length.
- the inlet 59 of the bifurcated pipe 53 is connected to the upstream side of the main path 31 via a flange.
- the bifurcated pipe 53 corresponds to a branch portion between the main path 31 and the bypass path 32.
- a main-side switching valve 37 is provided in the main-side outlet 57 of the bifurcated pipe 53 that communicates with the main path 31 side in the composite casing 33.
- a bypass-side switching valve 38 is provided in the bypass-side outlet 58 of the bifurcated pipe 53 that communicates with the bypass path 32 in the composite casing 33.
- On the rear surface side of the exhaust outlet portion 42 of the composite casing 33 an outlet 49 is formed close to the main path 31 side.
- An exhaust discharge pipe 60 communicating with the outflow port 49 is provided on the rear outer surface side of the exhaust outlet portion 42 of the composite casing 33.
- the exhaust discharge pipe 60 is connected to the downstream side of the main path 31 via a flange.
- a reducing agent supply device that supplies urea water as a reducing agent to exhaust gas in order from the upstream side.
- a urea water injection nozzle 61 as a reducing agent injection body and an exhaust mixer 62 for mixing exhaust gas and urea water are arranged.
- the reducing agent supply device includes a urea water tank (not shown) for storing urea water, a feed pump (not shown) for sucking urea water from the urea water tank, and a urea water injection nozzle 61 provided in the main-side relay pipe 55. It has.
- the urea water is sent from the urea water tank to the urea water injection nozzle 61 by driving the feed pump, and the urea water is injected from the urea water injection nozzle 61 into the main relay pipe 55 in the form of a mist.
- a nozzle inspection window 63 for inspecting and maintaining the urea water injection nozzle 61 is provided in the vicinity of the urea water injection nozzle 61 in the main side relay pipe 55.
- the nozzle inspection window 63 is also normally closed with a lid cover 64 so that it can be opened and closed in the same manner as the inspection opening windows 44 described above.
- the lid cover 64 is detachably fastened to the peripheral edge of the nozzle inspection window 63 with bolts.
- An exhaust mixer 62 is provided between the main side relay pipe 55 and the main side introduction pipe 51.
- the exhaust mixer 62 is located downstream from the urea water injection nozzle 61 provided in the main-side relay pipe 55 by a predetermined distance.
- the predetermined distance in this case is a distance necessary for hydrolyzing the urea water injected from the urea water injection nozzle 61 into ammonia in the main-side relay pipe 55.
- the exhaust mixer 62 of the first embodiment includes a cylindrical mixer pipe 71 having the same inner diameter as the main side relay pipe 55 and the main side introduction pipe 51, and a mixer pipe body 71.
- a plurality of mixing fins 72 (four in the first embodiment) provided on the inner peripheral side of the, and a shaft core body 73 located at the shaft core of the mixer tube 71.
- the core body 73 is configured to generate a swirling flow in the exhaust gas passing through the exhaust mixer 62 and the mist-like urea water.
- Each mixing fin 72 is a member for turning the flow of exhaust gas into a swirl flow, and is arranged radially on the inner peripheral side of the mixer tube 71 around the shaft core 73.
- the radially inner side end surface of each mixing fin 72 is fixed to the shaft core 73
- the radially outer side end surface of each mixing fin 72 is fixed to the inner peripheral surface of the mixer tube 71.
- Each mixing fin 72 is located at equal angles along the circumferential direction of the mixer tube 71 (positioned symmetrically about the shaft core 73).
- the number of mixing fins 72 is not limited to the four in the first embodiment.
- each mixing fin 72 are configured to make a predetermined angle with respect to the exhaust gas movement direction (axial center direction of the mixer tube 71 and the like). That is, each mixing fin 72 is bent in the middle of the exhaust gas movement direction. In this case, each mixing fin 72 is bent so that the angle of the upstream fin plate portion 72a with respect to the exhaust gas movement direction is the inclination angle ⁇ 1, and the angle of the downstream fin plate portion 72b with respect to the exhaust gas movement direction is the inclination angle ⁇ 2. I am letting.
- the inclination angle ⁇ 2 of the downstream fin plate portion 72b is set larger than the inclination angle ⁇ 1 of the upstream fin plate portion 72a.
- the inclination angles ⁇ 1 and ⁇ 2 of the fin plate portions 72a and 72b are larger on the downstream side than on the upstream side.
- the inclination angles ⁇ 1 and ⁇ 2 of the fin plate portions 72a and 72b increase continuously or stepwise from the upstream side toward the downstream side.
- the upstream tip portion of the shaft core 73 that supports the radially inner side end surface of each mixing fin 72 has a tapered shape (conical shape) that decreases in cross-sectional area toward the upstream side. Forming. Further, the downstream base end portion of the shaft core 73 is formed in a taper shape (cone shape) having a rear narrowing that reduces the cross-sectional area toward the downstream side. For this reason, the exhaust gas flowing into the vicinity of the shaft core of the mixer tube 71 is guided toward the mixing fins 72 on the radially outer side by the tapered upstream tip portion of the shaft core 73.
- a main side inlet temperature sensor that detects the temperature of exhaust gas flowing into the main path 31 side in the composite casing 33 is provided in the exhaust path inlet 41 on the main path 31 side of the composite casing 33.
- 65a is arranged.
- a bypass side inlet temperature sensor 65 b that detects the temperature of the exhaust gas flowing into the bypass path 32 in the composite casing 33 is disposed in the bypass side relay pipe 56.
- An outlet temperature sensor 65 c that detects the temperature of the exhaust gas that has passed through the main path 31 side or the bypass path 32 side is disposed in the exhaust discharge pipe 60 of the composite casing 33.
- a plurality of lifting metal fittings 66 are integrally provided on the upper outer peripheral side of the composite casing 33.
- two lifting metal fittings 66 (four in total) are attached to the upper side of the two side surfaces of the composite casing 33 having a substantially rectangular tube shape in parallel with each other.
- the lifting metal fitting 66 group is locked to a hook (not shown) of a chain block, the composite casing 33 is moved up and down by the chain block, and the upper side of the engine room 11 (on the upper stage of the engine room 11).
- the composite casing 33 can be easily assembled on the second deck 14).
- the main path 31 and the bypass path 32 in each exhaust path 30 are provided with a main side switching valve 37 and a bypass side switching valve 38 as opening and closing members for opening and closing each (in the embodiment, three sets, 6 in total).
- the main-side switching valve 37 and the bypass-side switching valve 38 have a relationship that when one is opened, the other is closed in order to select a path through which the exhaust gas passes. Further, the main side switching valve 37 and the bypass side switching valve 38 are configured to open and close according to the state of the corresponding power generation engine 25 and the type of fuel used.
- the main switching valve 37 and the bypass side switching valve 38 as the opening and closing members for opening and closing the exhaust paths 31 and 32 are provided in the main path 31 and the bypass path 32 in each exhaust path 30,
- the main switching valve 37 and the bypass switching valve 38 are switched between open and closed states when the exhaust gas purification process is necessary and unnecessary, such as when navigating within the regulated sea area and when navigating outside the regulated sea area.
- the route through which the exhaust gas passes can be selected as appropriate. Therefore, the exhaust gas can be processed efficiently.
- the exhaust gas purification process is unnecessary, the exhaust gas can be guided to the bypass path 32 side that communicates directly with the outside while avoiding the NOx catalyst 34 and the slip treatment catalyst 35.
- the NOx catalyst 34 and the slip treatment catalyst 35 are not exposed to the exhaust gas, which contributes to extending the life of the NOx catalyst 34 and the slip treatment catalyst 35.
- the main-side switching valve 37 and the bypass-side switching valve 38 are fluid-operated, and are held open (normally open type) when no fluid is supplied.
- a main-side valve driver 67 that switches and drives the main-side switching valve 37 and a bypass-side valve driver 68 that switches and drives the bypass-side switching valve 38, each composed of a single-acting pneumatic cylinder, are provided. It has been.
- the main side valve driver 67 is provided on the outer peripheral side of the main side relay pipe 55 in parallel along the longitudinal direction of the main side relay pipe 55.
- the bypass side valve driver 68 is provided on the outer peripheral side of the bypass side relay pipe 56 in parallel along the longitudinal direction of the bypass side relay pipe 56.
- the valve drivers 67 and 68 of the main side switching valve 37 and the bypass side switching valve 38 are each connected to a fluid supply source 81 via a fluid circulation pipe 80 as shown in FIG.
- the fluid supply source 81 is for supplying air that is a compressed fluid for operating the valve drivers 67 and 68 (for operating the main side switching valve 37 and the bypass side switching valve 38).
- a flow rate adjustment unit 84 having an adjustment unit and an open side adjustment unit is provided.
- Each electromagnetic valve 83 operates based on control information, and is configured to supply or stop the compressed fluid to the valve drivers 67 and 68 of the corresponding switching valves 37 and 38.
- Each valve driver 67, 68 is provided with a limit switch 85 that detects the open / closed state of the switching valves 37, 38.
- Each valve driver 67, 68 is connected to a silencer 86, and each electromagnetic valve A silencer 87 is connected to 83.
- both the main-side and bypass-side electromagnetic valves 83 are in a fluid supply stop state, and the fluid supply to the main-side switching valve 37 and the bypass-side switching valve 38 is stopped. Since the main-side switching valve 37 and the bypass-side switching valve 38 are normally open as described above, when the fluid supply is stopped, they are driven by both valve drivers 67 and 68 to be opened. Thereafter, the solenoid valve 83 on the side that does not allow the exhaust gas to pass is in a fluid supply state, and the valve on the side to which the fluid is supplied is closed. Here, the solenoid valve 83 on the side where the exhaust gas is desired to pass is still in the fluid supply stop state, and the switching valve is still in the open state.
- the path through which the exhaust gas passes is switched.
- the main side switching valve 37 and the bypass side switching valve 38 the main side switching valve is temporarily changed from the state in which the main side switching valve 37 is closed and the bypass side switching valve 38 is opened (see FIG. 12A).
- 37 and the bypass side switching valve 38 are both opened (see FIG. 12B), and then the bypass side switching valve 38 is closed and the main side switching valve 37 is opened (see FIG. 12C). )become.
- the exhaust gas passes through the main path 31. That is, it flows into the main path 31 side in the composite casing 33 via the main side outlet 57, the main side relay pipe 55, the exhaust mixer 62, the main side introduction pipe 51, and the main side inlet 47 of the bifurcated pipe 53, The NOx catalyst 34 and the slip treatment catalyst 35 are passed through for purification treatment.
- the exhaust gas containing the atomized urea water injected from the urea water injection nozzle 61 is guided to the exhaust mixer 62 through the main-side relay pipe 55.
- the upstream fin plate portion 72a of each mixing fin 72 changing the exhaust gas movement direction to the direction of the inclination angle ⁇ 1
- the downstream fin plate portion 72b further changing the exhaust gas movement direction to the direction of the inclination angle ⁇ 2.
- the exhaust gas containing urea water flows toward the inner peripheral surface of the mixer tube 71 and moves in the circumferential direction along the inner peripheral surface of the mixer tube 71.
- the exhaust inlet 41 on the main path 31 side in the composite casing 33 has a tapered shape (conical shape) that reduces the cross-sectional area toward the upstream side.
- the turning diameter becomes large.
- the exhaust gas reaches the NOx catalyst 34 on the main path 31 side in the composite casing 33 while being more uniformly mixed with the urea water.
- the engine 25 is operating because the main-side switching valve 37 and the bypass-side switching valve 38 are configured by normally open type single-acting switching valves. Even when the fluid supply is off, such as when the exhaust gas path is switched in the state, both the main path 31 and the bypass path 32 are not simultaneously closed. Therefore, even if the path switching valves 37 and 38 break down, it is possible to prevent both the path switching valves 37 and 38 from being simultaneously closed while the engine 25 is operating.
- the fluid supply to the main side switching valve 37 and the bypass side switching valve 38 is once turned off.
- the main side switching valve 37 and the bypass side switching valve 38 are opened, and then fluid is supplied to one single operation switching valve that is closed. Therefore, even if the path switching valves 37 and 38 fail, both the main path 31 and the bypass path 32 are not closed at the same time when the exhaust gas path is switched, and the engine 25 is operating. It is possible to reliably prevent the exhaust gas path from being blocked.
- both the path switching valves 37 and 38 can be prevented from being closed simultaneously, the power generation engine 25 is stopped and the power generation by the diesel generator 24 is prevented from being stopped. Electric power can be reliably supplied to the electric system, and for example, various auxiliary machines, cargo handling devices, lighting, air conditioning, and other devices can be reliably prevented from becoming unusable.
- the main-side switching valve 37 and the bypass-side switching valve 38 are interlocked and connected so that when one is opened via the link mechanism 90, the other is closed.
- the link mechanism 90 is interposed between the main drive shaft 93 of the main switch valve 37 and the bypass drive shaft 94 of the bypass switch valve 38.
- the link mechanism 90 is duplicated, and is disposed above the main link shaft 91 and the bypass drive shaft 94, and the upper link lever 91 disposed above the main drive shaft 93 and the bypass drive shaft 94.
- a lower link lever 92 is duplicated, and is disposed above the main link shaft 91 and the bypass drive shaft 94, and the upper link lever 91 disposed above the main drive shaft 93 and the bypass drive shaft 94.
- the main side valve body 95 of the main side switching valve 37 and the bypass side valve body 96 of the bypass side switching valve 38 are provided so as to close the other when one is opened.
- the main-side valve body 95 and the bypass-side valve body 96 are provided so that the angle (attachment phase) with respect to the exhaust gas ventilation direction differs by 90 ° in a front view.
- the link mechanism 90 is provided between the main side drive shaft 93 and the bypass side drive shaft 94, only one valve driver is required, either the main side or the bypass side. Just connect directly to one.
- both switching valves 37 and 38 are driven only by the valve driver 68 directly connected to the bypass side drive shaft 94.
- Other configurations are substantially the same as those of the first embodiment.
- the main-side switching valve 37 and the bypass-side switching valve 38 are interlocked so that when one is opened via the link mechanism 90, the other is closed. Therefore, either one of the switching valves 37 and 38 can be always opened, and both the main path 31 and the bypass path 32 can be prevented from being fully closed. Therefore, the exhaust gas path is not blocked while the engine 25 is operating, and it is possible to prevent the engine 25 from stopping due to the absence of an exhaust gas escape path.
- the link mechanism 90 since the link mechanism 90 has a double structure having the upper link lever 91 and the lower link lever 92, even if one of the link levers is broken or broken, it remains.
- Both switching valves can be operated by the other link lever, and it is possible to reliably prevent both paths from being completely closed simultaneously. Further, since the load generated when the link mechanism 90 is actuated is distributed to the upper link lever 91 and the lower link lever 92, the service life of the link levers 91 and 92 can be extended, and the interlocking of the switching valves 37 and 38 can be increased. Redundancy can be improved for the structure. Further, by providing the link mechanism 90, both switching valves 37 and 38 can be driven with a single valve driver. Therefore, it is not necessary to provide a plurality of valve drivers, and the configuration is simplified and the manufacturing cost is reduced. it can. In the second embodiment, it is not always necessary to use the normally open single-acting type as the valve driver, and a double-acting type valve driver may be used.
- the main side switching valve 37 and the bypass side switching valve 38 are pivotally supported on a single rotating shaft 97. Specifically, the main-side valve body 95 of the main-side switching valve 37 and the bypass-side valve body 96 of the bypass-side switching valve 38 are both supported by the rotating shaft 97. Therefore, the main side switching valve 37 (main side valve body 95) and the bypass side switching valve 38 (bypass side valve body 96) are driven in conjunction with the rotating shaft 97.
- the main-side switching valve 37 and the bypass-side switching valve 38 are different in attachment phase by 90 ° with respect to the rotation shaft 97.
- the attachment phases of the main side valve body 95 and the bypass side valve body 96 with respect to the rotation shaft 97 are different by 90 °.
- the main side switching valve 37 and the bypass side switching valve 38 are pivotally supported by a single rotation shaft 97, only one valve driver is required.
- both switching valves 37 and 38 are driven only by the valve driver 68.
- Other configurations are substantially the same as those of the first embodiment.
- the main-side switching valve 37 and the bypass-side switching valve 38 are pivotally supported by a single rotating shaft 97. 38 can be interlocked only by the rotary shaft 97, and it is not necessary to provide a rotary shaft for each of the switching valves 37 and 38, and both switching valves 37 and 38 can be driven by a single valve driver. There is no need to provide a plurality of vessels, and the configuration can be simplified to contribute to a reduction in manufacturing cost. Further, since the main-side switching valve 37 and the bypass-side switching valve 38 are attached with a phase difference of 90 ° with respect to the rotary shaft 97, when one of the switching valves 37, 38 is interlocked, the other is opened.
- one of the switching valves 37 and 38 can be always opened, and the main path 31 and the bypass path 32 can be prevented from being fully closed. Therefore, the exhaust gas path is not blocked while the engine 25 is operating, and it is possible to prevent the engine 25 from stopping due to the absence of an exhaust gas escape path.
- the flow of the exhaust gas flowing through the exhaust passage 30 in the open state of the main side switching valve 37 (main side valve body 95) is made turbulent to the main side valve body 95 of the main side switching valve 37.
- a plurality of mixing fins 98 (four in the fourth embodiment) are provided.
- the mixing fins 98 are configured integrally with the main-side valve body 95, and are configured to form a predetermined angle with respect to the exhaust gas passage direction.
- two mixing fins 98 are formed on one side and the other side of the main side valve body 95, and the angles of the mixing fins 98 formed on one side and the other side of the main side valve body 95 are as follows. These are configured to cross each other.
- the number of mixing fins 98 is not limited to the four in the fourth embodiment.
- a urea water injection nozzle (reducing agent injection nozzle) 61 is disposed on the downstream side of the main side switching valve 37 in the exhaust path 30.
- the urea water injection nozzle 61 of the fourth embodiment is for injecting urea water into the exhaust gas turbulent by the mixing fin 98.
- the exhaust gas is turbulent upstream of the urea water injection nozzle 61, so it is necessary to provide a dedicated exhaust mixer 62 for mixing the exhaust gas and urea water.
- the exhaust mixer 62 is not provided.
- Other configurations are substantially the same as those of the first embodiment.
- the main side switching valve 37 may be linked with the bypass side switching valve 38 by a link mechanism as in the second embodiment, or the shaft side linkage with the bypass side switching valve 38 as in the third embodiment. It may be what you do.
- the main-side valve body 95 of the main-side switching valve 37 is provided with a plurality of mixing fins 98 that make the exhaust gas flowing in the exhaust passage 30 turbulent. Therefore, it is not necessary to provide a dedicated exhaust mixer 62 in the exhaust path 30. Therefore, the number of parts can be reduced, the configuration can be simplified, and the manufacturing cost can be reduced. Further, the urea water injection nozzle 61 is disposed downstream of the main side switching valve 37 provided with the mixing fin 98, and the reducing agent is injected into the exhaust gas turbulent by the mixing fin 98. Gas and reducing agent can be mixed efficiently. Therefore, NOx in the exhaust gas can be efficiently reduced with a simple configuration, and NOx in the exhaust gas can be removed as much as possible.
- the structure of each part is not limited to embodiment of illustration, A various change is possible in the range which does not deviate from the meaning of this invention.
- the present invention is applied to the exhaust gas purification system provided in the exhaust path 30 of the power generation engine 25.
- the present invention is not limited to this, for example, the exhaust gas purification system in the exhaust system of the main engine 21. You may apply.
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Abstract
Description
まず始めに、図1を参照しながら、第1実施形態における船舶1の概要について説明する。第1実施形態の船舶1は、船体2と、船体2の船尾側に設けたキャビン3(船橋)と、キャビン3の後方に配置したファンネル4(煙突)と、船体2の後方下部に設けたプロペラ5及び舵6とを備えている。この場合、船尾側の船底7にスケグ8を一体形成している。スケグ8には、プロペラ5を回転駆動させる推進軸9を軸支している。船体2内の船首側及び中央部には船倉10を設けている。船体2内の船尾側には機関室11を設けている。
次に、図2~図6を参照しながら、発電装置23の排気系統について説明する。各発電用エンジン25には、空気取り込み用の吸気経路(図示省略)と排気ガス排出用の排気経路30とを接続している。吸気経路を通じて取り込まれた空気は、発電用エンジン25の各気筒内(吸気行程の気筒内)に送られる。各気筒の圧縮行程完了時に、燃料タンクから吸い上げた燃料を燃料噴射装置によって気筒毎の燃焼室内に圧送し、各燃焼室によって混合気の自己着火燃焼に伴う膨張行程が行われる。
(NH2)2CO+H2O → 2NH3+CO2(加水分解)
NO+NO2+2NH3→ 2N2+3H2O(NOx触媒34での反応)
4NH3+3O2→ 2N2+6H2O(スリップ処理触媒35での反応)
が生ずる。
各排気経路30におけるメイン経路31とバイパス経路32には、それぞれを開閉する開閉部材として、メイン側切換バルブ37及びバイパス側切換バルブ38が設けられている(実施形態では3組、計6個)。これらメイン側切換バルブ37及びバイパス側切換バルブ38は、排気ガスの通過する経路を選択するために、一方を開けば他方を閉じるという関係になっている。また、メイン側切換バルブ37及びバイパス側切換バルブ38は、それぞれ対応する発電用エンジン25の状態及び使用燃料の種類に応じて開閉させるように構成されている。
以上の構成によると、メイン側切換バルブ37及びバイパス側切換バルブ38を、ノーマリーオープン式の単作動切換バルブにより構成しているので、エンジン25が作動している状態での排気ガス経路切換え時等、流体供給がオフの状態であっても、メイン経路31及びバイパス経路32の両経路が同時に閉状態になることがない。したがって、仮に経路切換バルブ37、38が故障した場合でも、エンジン25が作動している状態で両方の経路切換バルブ37、38が同時に閉状態になることを防止できる。
次に、図13及び図14を参照しながら、第2実施形態における発電装置23の排気系統について説明する。第2実施形態では、メイン側切換バルブ37とバイパス側切換バルブ38とがリンク機構90を介して一方を開放すると他方を閉止するように連動連結している。具体的には、リンク機構90は、メイン側切換バルブ37のメイン側駆動軸93と、バイパス側切換バルブ38のバイパス側駆動軸94との間に介在している。このリンク機構90は、二重化されており、メイン側駆動軸93及びバイパス側駆動軸94の上方に配置される上リンクレバー91と、メイン側駆動軸93及びバイパス側駆動軸94の上方に配置される下リンクレバー92とを有する。ここで、メイン側切換バルブ37のメイン側弁体95と、バイパス側切換バルブ38のバイパス側弁体96とは、一方を開放すると他方を閉止するように設けられている。具体的には、メイン側弁体95とバイパス側弁体96とが、正面視において排気ガスの通気方向に対する角度(取付け位相)が90°異なるように設けられている。また、第2実施形態では、メイン側駆動軸93とバイパス側駆動軸94との間にリンク機構90を設けているので、バルブ駆動器は1台あれば良く、メイン側又はバイパス側のいずれか一方に直結させれば良い。本実施形態では、バイパス側駆動軸94に直結するバルブ駆動器68だけで両切換バルブ37、38を駆動している。その他の構成は第1実施形態と略同様である。
第2実施形態の構成では、メイン側切換バルブ37及びバイパス側切換バルブ38が、リンク機構90を介して一方を開放すると他方を閉止するように連動連結しているので、両切換バルブ37、38のいずれか一方を必ず開いた状態にでき、メイン経路31及びバイパス経路32の両経路が全閉になるのを防止することができる。したがって、エンジン25が作動している状態で排気ガス経路が閉塞してしまうことがなく、排気ガスの逃げ道が無くなってエンジン25が停止することを防止できる。また、第2実施形態の構成では、リンク機構90が上リンクレバー91と、下リンクレバー92とを有する二重化構造であるので、仮に一方のリンクレバーが破損または故障等したりしても、残る他方のリンクレバーで両切換バルブを作動でき、両経路が同時に完全閉塞するのを確実に防止できる。また、リンク機構90の作動時に生じる負荷が、上リンクレバー91と、下リンクレバー92とに分散するので、リンクレバー91、92の寿命を長くすることができ、両切換バルブ37、38の連動構造について冗長性向上を図れる。さらに、リンク機構90を設けることにより、バルブ駆動器が1台あれば両切換バルブ37、38を駆動できるので、バルブ駆動器を複数設ける必要がなく、構成を簡素化して製造コストの低減に寄与できる。なお、第2実施形態では、バルブ駆動器としてノーマリーオープン単動式を必ずしも使う必要はなく、複動式のバルブ駆動器を使用してもよい。
次に、図15を参照しながら、第3実施形態における発電装置23の排気系統について説明する。第3実施形態では、メイン側切換バルブ37とバイパス側切換バルブ38とを、単一の回動軸97に軸支している。具体的には、メイン側切換バルブ37のメイン側弁体95と、バイパス側切換バルブ38のバイパス側弁体96とが、ともに回動軸97に軸支されている。したがって、メイン側切換バルブ37(メイン側弁体95)とバイパス側切換バルブ38(バイパス側弁体96)とは回動軸97により連動して駆動される。ここで、第3実施形態では、メイン側切換バルブ37とバイパス側切換バルブ38とは、回動軸97に対して取付け位相を90°異ならせている。具体的には、メイン側弁体95と、バイパス側弁体96との回動軸97に対する取付け位相を90°異ならせている。例えば、図15に示すように、メイン側切換バルブ37を開放した状態であれば、バイパス側切換バルブ38は閉止した状態となる。また、第3実施形態では、メイン側切換バルブ37とバイパス側切換バルブ38とを、単一の回動軸97に軸支しているので、バルブ駆動器は1台あれば良い。第3実施形態では、バルブ駆動器68だけで両切換バルブ37、38を駆動している。その他の構成は第1実施形態と略同様である。
第3実施形態の構成では、メイン側切換バルブ37とバイパス側切換バルブ38とを、単一の回動軸97に軸支しているので、両切換バルブ37、38を回動軸97だけで連動でき、両切換バルブ37、38それぞれに回動軸を設ける必要が無くなるとともに、バルブ駆動器が1台あれば両切換バルブ37、38を駆動できるので、バルブ駆動器を複数設ける必要がなく、構成を簡素化して製造コストの低減に寄与できる。また、メイン側切換バルブ37とバイパス側切換バルブ38とを、回動軸97に対して取付け位相を90°異ならせているので、両切換バルブ37、38を連動させるにあたり、一方を開放すると他方を閉止することになり、両切換バルブ37、38のいずれか一方を必ず開いた状態にでき、メイン経路31及びバイパス経路32の両経路が全閉になるのを防止することができる。したがって、エンジン25が作動している状態で排気ガス経路が閉塞してしまうことがなく、排気ガスの逃げ道が無くなってエンジン25が停止することを防止できる。
次に、図16及び図17を参照しながら、第4実施形態における発電装置23の排気系統について説明する。第4実施形態では、メイン側切換バルブ37のメイン側弁体95に、メイン側切換バルブ37(メイン側弁体95)の開状態で排気経路30内を流通する排気ガスの流れを乱流にする複数枚のミキシングフィン98(第4実施形態では4枚)を設けている。このミキシングフィン98は、メイン側弁体95と一体的に構成されたものであり、排気ガス通過方向に対してそれぞれ所定角度をなすように構成している。この場合、メイン側弁体95を挟んで、一方及び他方にそれぞれ2枚のミキシングフィン98が形成されており、メイン側弁体95の一方側、他方側に形成されたミキシングフィン98の角度は、それぞれ互いに交差するように構成されている。なお、ミキシングフィン98の枚数は第4実施形態の4枚に限るものではない。また、図17に示すように、排気経路30におけるメイン側切換バルブ37の下流側に、尿素水噴射ノズル(還元剤噴射ノズル)61が配置されている。第4実施形態の尿素水噴射ノズル61は、ミキシングフィン98により乱流にされた排気ガスに尿素水を噴射するものである。したがって、ミキシングフィン98が設けられている場合は、尿素水噴射ノズル61の上流側で排気ガスが乱流にされているので、排気ガスと尿素水とを混合させる専用の排気ミキサー62を設ける必要がなく、第4実施形態では排気ミキサー62を設けていない。その他の構成は第1実施形態と略同様である。また、メイン側切換バルブ37は、第2実施形態のようにバイパス側切換バルブ38とリンク機構により連動するものであっても良いし、第3実施形態のようにバイパス側切換バルブ38と軸連動するものであっても良い。
第4実施形態の構成では、メイン側切換バルブ37のメイン側弁体95に、排気経路30内を流れる排気ガスを乱流にする複数枚のミキシングフィン98を設けているので、排気経路30内に専用の排気ミキサー62を設ける必要がない。したがって、部品点数の削減を図ることができ、構成を簡素化して製造コストの低減に寄与できる。また、ミキシングフィン98が設けられたメイン側切換バルブ37の下流側に尿素水噴射ノズル61を配置しており、ミキシングフィン98により乱流にされた排気ガスに還元剤が噴射されるので、排気ガスと還元剤とを効率よく混合できる。したがって、簡単な構成で排気ガス中のNOxを効率よく還元することができ、排気ガス中のNOxを可及的に除去することができる。
なお、各部の構成は図示の実施形態に限定されるものではなく、本願発明の趣旨を逸脱しない範囲で種々変更が可能である。上記の各実施形態では、発電用エンジン25の排気経路30中に設ける排気ガス浄化システムに、本願発明を適用したが、これに限らず、例えば主エンジン21の排気系統中の排気ガス浄化システムに適用してもよい。
11 機関室
21 主エンジン
22 減速機
23 発電装置
24 ディーゼル発電機
25 発電用エンジン
26 発電機
30 排気経路
31 メイン経路
32 バイパス経路
33 複合ケーシング
34 NOx触媒
35 スリップ処理触媒
37 メイン側切換バルブ
38 バイパス側切換バルブ
40 仕切板
61 尿素水噴射ノズル(還元剤噴射体)
62 排気ミキサー
80 流体流通配管
81 流体供給源
82 フィルタレギュレータ
83 電磁弁
84 流量調整部
85 リミットスイッチ
95 メイン側弁体
96 バイパス側弁体
98 ミキシングフィン
Claims (7)
- 船舶搭載用のエンジンの排気経路として、外部に連通するメイン経路と、前記メイン経路の中途部から分岐したバイパス経路とを備える船舶の排気ガス浄化システムにおいて、
前記メイン経路と前記バイパス経路とには、前記各経路を開閉する流体作動式の切換バルブを配置し、前記各切換バルブをノーマリーオープンタイプに構成している、
船舶の排気ガス浄化システム。 - 排気ガス移動方向を前記両経路の一方に切り換える場合は、前記両切換バルブへの流体供給をオフにし、前記両切換バルブを開状態にしてから、閉状態にする一方の切換バルブに流体供給するように構成している、
請求項1に記載した船舶の排気ガス浄化システム。 - 前記メイン経路と前記バイパス経路との両方に切換バルブを配置し、前記メイン経路側の切換バルブの弁体に、前記切換バルブの開状態で排気ガスの流れを乱流にするミキシングフィンを設け、前記メイン経路側の切換バルブの下流側に還元剤噴射ノズルを配置している、
請求項1又は2に記載した船舶の排気ガス浄化システム。 - 船舶搭載用のエンジンの排気経路として、外部に連通するメイン経路と、前記メイン経路の中途部から分岐したバイパス経路とを備える船舶の排気ガス浄化システムにおいて、
前記メイン経路と前記バイパス経路とには、前記各経路を開閉する切換バルブを配置し、前記両切換バルブは、リンク機構を介して一方を開放すると他方を閉止するように連動連結している、
船舶の排気ガス浄化システム。 - 前記リンク機構を二重化している、
請求項4に記載した船舶の排気ガス浄化システム。 - 船舶搭載用のエンジンの排気経路として、外部に連通するメイン経路と、前記メイン経路の中途部から分岐したバイパス経路とを備える排気ガス浄化システムにおいて、
前記メイン経路と前記バイパス経路とには、前記各経路を開閉する切換バルブを配置し、前記両切換バルブを単一の回動軸に軸支している、
船舶の排気ガス浄化システム。 - 前記単一の回動軸に対して前記両切換バルブの取付け位相を90°異ならせている、
請求項6に記載した船舶の排気ガス浄化システム。
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109690044A (zh) * | 2016-09-16 | 2019-04-26 | 洋马株式会社 | 船舶 |
CN112588086A (zh) * | 2021-03-02 | 2021-04-02 | 中国电建集团上海能源装备有限公司 | 一种船舶脱硫塔用压力调节板、船舶脱硫塔及其调压方法 |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK3064725T3 (en) * | 2013-10-28 | 2018-09-03 | Yanmar Co Ltd | EXHAUST GAS CLEANING SYSTEM AND SHIP USING THE SAME |
JP6323950B2 (ja) * | 2014-06-30 | 2018-05-16 | ヤンマー株式会社 | 排気浄化装置 |
JP6259729B2 (ja) | 2014-06-30 | 2018-01-10 | ヤンマー株式会社 | 排気浄化装置 |
JP6278029B2 (ja) * | 2015-10-30 | 2018-02-14 | マツダ株式会社 | 発電機駆動用エンジン搭載の自動車 |
JP6721351B2 (ja) * | 2016-01-29 | 2020-07-15 | 株式会社ミクニ | バルブ装置及び排熱回収システム |
FR3064299B1 (fr) * | 2017-03-22 | 2021-06-04 | Dcns | Plateforme navale equipee de moyens de motorisation diesel |
JP7288746B2 (ja) * | 2018-09-14 | 2023-06-08 | 三菱重工エンジン&ターボチャージャ株式会社 | 排ガス浄化装置、および排ガス浄化装置を備える船舶 |
EP3628834B1 (en) * | 2018-09-28 | 2021-11-03 | Winterthur Gas & Diesel Ltd. | Valve for an exhaust housing and exhaust housing of a large ship |
JP7291425B2 (ja) * | 2019-08-21 | 2023-06-15 | 有機米デザイン株式会社 | 水田用除草装置およびこれを用いた水田の除草方法、栽培作物の作成方法、並びに航行プログラム |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0510116A (ja) * | 1991-06-29 | 1993-01-19 | Mazda Motor Corp | 水噴射装置付エンジン |
JPH09250338A (ja) * | 1996-03-18 | 1997-09-22 | Nissan Motor Co Ltd | 排気浄化装置 |
JP2003269136A (ja) * | 2002-03-12 | 2003-09-25 | Nissan Diesel Motor Co Ltd | 内燃機関の排気処理装置 |
JP2006029233A (ja) * | 2004-07-16 | 2006-02-02 | Nissan Diesel Motor Co Ltd | エンジンの排気浄化装置 |
JP2009024628A (ja) * | 2007-07-20 | 2009-02-05 | Mitsubishi Fuso Truck & Bus Corp | 内燃機関の排気浄化装置 |
JP2009505006A (ja) * | 2005-08-09 | 2009-02-05 | エフエムセ テクノロジーズ ソシエテ アノニム | 緊急分離システム |
JP2013213501A (ja) * | 2013-06-28 | 2013-10-17 | Yanmar Co Ltd | 排気ガス浄化システム |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3658115B2 (ja) | 1996-11-20 | 2005-06-08 | 本田技研工業株式会社 | 内燃機関の排気浄化装置 |
US6584767B1 (en) * | 2001-11-09 | 2003-07-01 | Steve Koenig | Exhaust diverter |
EP2259000B1 (en) * | 2003-10-17 | 2011-10-05 | Honeywell International Inc. | Internal bypass exhaust gas cooler |
US7121088B2 (en) * | 2004-05-24 | 2006-10-17 | General Motors Corporation | Automotive exhaust valve |
ATE549495T1 (de) | 2004-07-16 | 2012-03-15 | Nissan Diesel Motor Co | Abgasreinigungsvorrichtung für einen verbrennungsmotor |
JP4713954B2 (ja) | 2005-06-09 | 2011-06-29 | ヤンマー株式会社 | 船舶用電気推進装置 |
JP5075981B2 (ja) * | 2007-07-12 | 2012-11-21 | ルノー・トラックス | 車両の排気管路用の排気装置 |
JP5465407B2 (ja) | 2008-09-17 | 2014-04-09 | ヤンマー株式会社 | 船舶搭載用の排気ガス浄化装置 |
JP5308179B2 (ja) * | 2009-02-12 | 2013-10-09 | ヤンマー株式会社 | 排気ガス浄化システム |
SE537084C2 (sv) * | 2012-01-27 | 2014-12-30 | D E C Marine Ab | Ett avgasreningssystem och en anordning däri |
DE102012106888B4 (de) * | 2012-07-30 | 2015-12-10 | Benteler Automobiltechnik Gmbh | Abgasklappenanordnung mit integriertem Bypass |
JP6162383B2 (ja) | 2012-10-09 | 2017-07-12 | ヤンマー株式会社 | 排気ガス浄化装置 |
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Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0510116A (ja) * | 1991-06-29 | 1993-01-19 | Mazda Motor Corp | 水噴射装置付エンジン |
JPH09250338A (ja) * | 1996-03-18 | 1997-09-22 | Nissan Motor Co Ltd | 排気浄化装置 |
JP2003269136A (ja) * | 2002-03-12 | 2003-09-25 | Nissan Diesel Motor Co Ltd | 内燃機関の排気処理装置 |
JP2006029233A (ja) * | 2004-07-16 | 2006-02-02 | Nissan Diesel Motor Co Ltd | エンジンの排気浄化装置 |
JP2009505006A (ja) * | 2005-08-09 | 2009-02-05 | エフエムセ テクノロジーズ ソシエテ アノニム | 緊急分離システム |
JP2009024628A (ja) * | 2007-07-20 | 2009-02-05 | Mitsubishi Fuso Truck & Bus Corp | 内燃機関の排気浄化装置 |
JP2013213501A (ja) * | 2013-06-28 | 2013-10-17 | Yanmar Co Ltd | 排気ガス浄化システム |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109690044A (zh) * | 2016-09-16 | 2019-04-26 | 洋马株式会社 | 船舶 |
US20190270500A1 (en) * | 2016-09-16 | 2019-09-05 | Yanmar Co., Ltd. | Ship |
KR20190143467A (ko) * | 2016-09-16 | 2019-12-30 | 얀마 가부시키가이샤 | 선박 |
KR102190202B1 (ko) | 2016-09-16 | 2020-12-11 | 얀마 파워 테크놀로지 가부시키가이샤 | 선박 |
CN112588086A (zh) * | 2021-03-02 | 2021-04-02 | 中国电建集团上海能源装备有限公司 | 一种船舶脱硫塔用压力调节板、船舶脱硫塔及其调压方法 |
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CN106030060A (zh) | 2016-10-12 |
US10125651B2 (en) | 2018-11-13 |
KR102097186B1 (ko) | 2020-04-03 |
KR20160128298A (ko) | 2016-11-07 |
US20170009630A1 (en) | 2017-01-12 |
EP3121401A1 (en) | 2017-01-25 |
EP3121401B1 (en) | 2019-04-24 |
DK3121401T3 (da) | 2019-06-03 |
CN106030060B (zh) | 2019-01-15 |
EP3121401A4 (en) | 2017-11-22 |
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