WO2013103169A1 - 중장비용 배기가스 저감장치 - Google Patents
중장비용 배기가스 저감장치 Download PDFInfo
- Publication number
- WO2013103169A1 WO2013103169A1 PCT/KR2012/000151 KR2012000151W WO2013103169A1 WO 2013103169 A1 WO2013103169 A1 WO 2013103169A1 KR 2012000151 W KR2012000151 W KR 2012000151W WO 2013103169 A1 WO2013103169 A1 WO 2013103169A1
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- WO
- WIPO (PCT)
- Prior art keywords
- dpf
- exhaust gas
- filtration filter
- scr
- diesel
- 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.)
- Ceased
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
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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
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
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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
- F01N13/00—Exhaust or silencing apparatus characterised by constructional features
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
-
- 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
-
- 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
- F01N13/18—Construction facilitating manufacture, assembly, or disassembly
- F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
- F01N13/1811—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration
- F01N13/1822—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body with means permitting relative movement, e.g. compensation of thermal expansion or vibration for fixing exhaust pipes or devices to vehicle body
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F01N3/033—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 in combination with other devices
- F01N3/035—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 in combination with other devices with catalytic reactors
-
- 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
- F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
- F01N3/2066—Selective catalytic reduction [SCR]
-
- 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
-
- 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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
-
- 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
- F01N2260/00—Exhaust treating devices having provisions not otherwise provided for
- F01N2260/10—Exhaust treating devices having provisions not otherwise provided for for avoiding stress caused by expansions or contractions due to temperature variations
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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
- F01N2590/08—Exhaust or silencing apparatus adapted to particular use, e.g. for military applications, airplanes, submarines for heavy duty applications, e.g. trucks, buses, tractors, locomotives
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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
Definitions
- a diesel engine is a device that converts thermal energy into mechanical energy by using a mixture of external air and diesel fuel gas as a working fluid, and the mixed gas exploded and burned in a cylinder becomes exhaust gas and is discharged to the outside.
- a pipe connected to the exhaust port of the engine corresponds to the exhaust pipe so that the exhaust gas is discharged to the outside of the engine.
- Exhaust gases include substances such as carbon dioxide, carbon monoxide, hydrocarbons, sulfur oxides, hydrogen sulfide, nitrogen oxides, ammonia, ozone, and oxidants, so if they are released into the atmosphere, they cause environmental pollution.
- the emission of these harmful gases has been significantly reduced in recent years.
- a diesel filtration filter (DPF :) equipped with a diesel oxidation catalyst (DOC) to satisfy Tier-4 Interim and Stage-IIIB, which are diesel engine emission regulations.
- a diesel particulate filter is connected to the exhaust of a diesel engine to oxidize CO (hydrocarbon) and HC (hydrocarbon), and collect particulate matter (PM) to meet hazardous gas emission standards.
- the conventional diesel filtration filter (DPF) is not only heavy, unlike the muffler of a general vehicle, but also mounted directly on the engine, even though the filter provided therein is very vulnerable to vibration, the diesel filtration filter (DPF) ) Welds, etc. are directly affected by vibrations and work loads caused by engine driving, which causes problems such as cracking and damage.
- the present invention has been made to solve the above-mentioned problems, and further includes a selective catalytic reduction (SCR) device in a diesel filtration filter (DPF) to meet the enhanced diesel engine emission requirements (nitrogen oxide reduction). It is an object of the present invention to provide an apparatus for reducing exhaust gas for heavy equipment.
- SCR selective catalytic reduction
- DPF diesel filtration filter
- the purpose of the present invention is to provide a diesel exhaust filter (DPF) and selective catalytic reduction (SCR) device on the cowl frame to provide an exhaust gas reduction device for heavy equipment that can minimize the impact from vibration caused by the engine driving.
- DPF diesel exhaust filter
- SCR selective catalytic reduction
- the cowl frame is mounted on one side of the main frame adjacent to the engine to reduce the influence of the vibration of the engine;
- a diesel filtration filter (DPF) having one end connected to the other end of the exhaust pipe and mounted at an upper end of the cowl frame, having a diesel oxidation catalyst (DOC) inside, and collecting particulate matter;
- a mixing pipe whose one end is in communication with the other end of a diesel filtration filter (DPF), and one side is in communication with an injection device for injecting a reducing agent;
- a selective catalytic reduction (SCR) device in communication with the other end of the mixing pipe, mounted on the upper end of the cowl frame, and promoting a reduction reaction between the injected reducing agent and nitrogen oxides (NOx) in the exhaust gas.
- SCR selective catalytic reduction
- diesel filtration filter (DPF) and the selective catalytic reduction (SCR) device is made of a cylindrical shape, but both ends are formed in a hemispherical shape facing each other, each of which is mounted side by side on the cowl frame.
- At least one side of the exhaust pipe and the mixing pipe is characterized in that the connection is provided by one or more flexible joints.
- the diesel filtration filter (DPF) and the selective catalytic reduction (SCR) device are manufactured in a hemispherical cylindrical shape whose opposite ends face each other, the shock caused by the exhaust gas flowing into the high temperature and high pressure can be effectively buffered to increase durability. It is effective.
- FIG. 1 is a perspective view showing the mounting state of the exhaust gas reducing device for heavy equipment according to the present invention.
- FIG. 1 is a perspective view showing the mounting state of the exhaust gas reducing device for heavy equipment according to the present invention
- Figure 2 is an exploded perspective view of the exhaust gas reducing device for heavy equipment according to the present invention.
- the apparatus for reducing exhaust gas for heavy equipment 1 may include a cowl frame 100, a diesel filtration filter (DPF) 200, a mixing pipe 300, and an optional catalytic reduction (SCR) device 400. have.
- DPF diesel filtration filter
- SCR catalytic reduction
- the cowl frame 100 may be mounted by a method such as bolting or welding with the main frame (4).
- a diesel filtration filter (DPF) 200 and a selective catalytic reduction (SCR) device 400 to be described later may be mounted.
- DPF diesel filtration filter
- SCR selective catalytic reduction
- Diesel filter (DPF) (200) is configured to replace the conventional muffler by oxidizing the HC and CO in the exhaust gas through the diesel oxidation catalyst (DOC) provided on the inside and to collect particulate matter (PM) Corresponds to an element. Since the diesel filtration filter (DPF) 200 has one end connected to the other end of the exhaust pipe 10 and mounted at the upper end of the cowl frame 100, the exhaust gas emitted from the engine 2 passes through for the first time. Corresponds to the device.
- DOC diesel oxidation catalyst
- PM particulate matter
- the diesel filtration filter (DPF) 200 is not mounted to the engine 2, but is installed at an upper end of the cowl frame 100 mounted to one side of the main frame 4 adjacent to the engine 2, It is hardly affected by vibration and working load. Therefore, deformations such as cracks or damages that may occur due to the vibration of the diesel filtration filter (DPF) 200, the welded portion or the connection with the exhaust pipe 10 can be prevented.
- the upper portion of the diesel filtration filter (DPF) 200 and the cowl frame 100 may be coupled by the fixing part 500.
- the fixing part 500 supports the lower end of the diesel filtration filter (DPF) 200 and the support member 510 which is an elastic body fixed to the upper end of the cowl frame 100 (specifically, the fixing bracket 110).
- the fastening band 520 may be provided at both ends of the support member 510 to surround and fix the outer circumferential surface of the diesel filtration filter (DPF) 200.
- the support member 510 is formed in a shape corresponding to the outer peripheral surface of the lower end of the diesel filtration filter (DPF) 200 to be supported is in close contact with the diesel filtration filter (DPF) 200, to reduce the vibration caused by the engine driving It may be formed of a heat-resistant synthetic resin and the like so as to be elastic. At least two support members 510 are provided to stably support the diesel filtration filter (DPF) 200.
- the fastening band 520 is made of a pair to wrap and secure the outer peripheral surface of the diesel filtration filter (DPF) (200), so as to rotate through the hinge coupling with both ends of the support member (510), Coupling between the fastening bands 520 can be applied to various coupling methods such as screw coupling.
- the diesel filtration filter (DPF) 200 may be firmly fixed on the support member 510.
- one side of the exhaust pipe 10 may be provided with a connection portion connected to at least one or more flexible joints (11).
- the flexible joint 11 is preferably provided with an appropriate number in consideration of the length of the exhaust pipe 10 and the degree of engine vibration. Meanwhile, the flexible joint 11 may be made of a metal or a heat resistant elastic body.
- the diesel oxidation catalyst (DOC) provided inside the diesel filtration filter (DPF) 200 may be made of platinum (Pt), palladium (Pd) or a metal containing them at a predetermined ratio, and the diesel filtration filter (DPF) ( 200)
- the inner surface may be coated to promote oxidation of HC and CO.
- the diesel oxidation catalyst (DOC) is coated on a honeycomb porous member (catalyst carrier) having a plurality of through holes formed in parallel with the flow of the exhaust gas to be provided inside the diesel filtration filter (DPF) 200,
- the contact area with the exhaust gas can be greatly increased.
- the catalytic function is improved, and the oxidation reaction of HC and CO occurs in a wide range, and as a result, HC and CO can be effectively reduced.
- the diesel filtration filter (DPF) 200 collects particulate matter (PM) contained in exhaust gas discharged from the engine 2 by a filter, and the collected particulate matter (PM) is periodically burned and then removed. do.
- the exhaust gas passing through the diesel filtration filter (DPF) 200 is introduced into the mixing pipe 300.
- the mixing pipe 300 is a component that communicates between the diesel filtration filter (DPF) 200 and the selective catalytic reduction (SCR) device 400 and one side of the mixing pipe 300 is in communication with the injector 310. Where the reducing agent is injected inward, one end is in communication with the other end of the diesel filter (DPF) 200 and the other end is a pipe-shaped member in communication with the selective catalytic reduction (SCR) device 400.
- the reducing agent is injected to reduce the nitrogen oxides by chemical reaction with the nitrogen oxide contained in the exhaust gas passed through the diesel filtration filter (DPF) 200, mainly urea (Urea) or ammonia (NH 3 ) is used Can be.
- DPF diesel filtration filter
- the urea When the urea is injected into the mixing pipe 300 by controlling the injector 310, the injected urea is converted into ammonia and water, and the ammonia and water are exhausted through the diesel filtration filter (DPF) 200. The gas is mixed in the mixing pipe 300.
- DPF diesel filtration filter
- a vortex generating structure (not shown) may be formed in the mixing pipe 300, and the injector 310 may be connected to the vortex generating structure to allow the reducing agent to be injected.
- the reducing agent and the exhaust gas mixed in the mixing pipe 300 are introduced into the selective catalytic reduction (SCR) apparatus 400 which will be described later.
- SCR selective catalytic reduction
- a reducing agent mixed with the exhaust gas in the mixing pipe 300 reacts with nitrogen oxide (NOx) in the exhaust gas, thereby providing nitrogen (N 2 ) and water (H 2 O).
- a device that selectively activates only a chemical reaction to be converted to promote the reaction rate, and is connected to the other end of the mixing pipe 300 is mounted on the cowl frame 100 upper end.
- the selective catalytic reduction (SCR) device 400 is a secondary filter for removing nitrogen oxides contained in exhaust gas in which HC, CO, and particulate matter (PM) are reduced through the diesel filtration filter (DPF) 200. Corresponds to the abatement device.
- the selective catalytic reduction (SCR) device 400 may be manufactured in various sizes and shapes according to the engine output and the exhaust gas amount, similar to the diesel filtration filter (DPF) 200, but due to the exhaust gas introduced at high temperature and high pressure. It is preferably formed in a cylindrical shape so as to effectively cushion the impact, both ends are preferably formed in a hemispherical shape facing each other. That is, the cross section is to be elliptical.
- the selective catalytic reduction (SCR) device 400 is not mounted to the engine 2, but is installed at an upper portion of the cowl frame 100 mounted to one side of the main frame 4 adjacent to the engine 2, thereby driving the engine. It is hardly affected by vibration and working load. Therefore, deformations such as cracks or damages that may occur due to vibrations, such as welds or connections with the mixing pipe 300 of the selective catalytic reduction (SCR) device 400 may be prevented.
- the selective catalytic reduction (SCR) device 400 may be fixed to the upper end of the cowl frame 100 through the fixing part 500, similar to the diesel filtration filter (DPF) (200).
- the diesel filtration filter (DPF) 200 and the selective catalytic reduction (SCR) device 400 are horizontal in the longitudinal direction (up and down direction in FIG. 1) of the cowl frame 100. Parallel to each other to be mounted in parallel form can effectively utilize the space of the upper portion of the cowl frame (100).
- the arrangement of the selective catalytic reduction (SCR) device 400 and the diesel filtration filter (DPF) 200 shown in Figure 1 can be changed to the arrangement rotated at right angles on the horizontal plane.
- the support member 510 is made of a shape corresponding to the outer peripheral surface of the lower end of the selective catalytic reduction (SCR) device 400 that is supported, and is in close contact with a heat-resistant synthetic resin having elasticity to reduce vibrations caused by engine driving Can be formed.
- the support member 510 is provided with at least two or more in order to stably support the selective catalytic reduction (SCR) device 400.
- such a catalyst is coated on a honeycomb-shaped porous member (catalyst carrier) having a plurality of through holes formed in parallel with the flow of exhaust gas, like a diesel oxidation catalyst (DOC), so that the selective catalytic reduction (SCR) device 400 inside
- DOC diesel oxidation catalyst
- SCR selective catalytic reduction
- the selective catalytic reduction (SCR) device 400 is to discharge the exhaust gas is reduced nitrogen oxide to the outside through the discharge pipe 410.
- the discharge pipe 410 is preferably provided on the opposite side of the side of the selective catalytic reduction (SCR) device 400 and the mixing pipe 300 is connected.
- the selective catalytic reduction (SCR) device 400 promotes a reduction reaction of nitrogen oxides (NOx) in the exhaust gas through the reducing agent to reduce harmful gases such as nitrogen oxides.
- NOx nitrogen oxides
- the exhaust gas reduction device 1 for heavy equipment further includes a selective catalytic reduction (SCR) device 400 in a diesel filtration filter (DPF) 200 which is a reduction device generally used. Therefore, by effectively suppressing NOx, it is possible to meet the enhanced diesel engine emission requirements and to prevent environmental pollution.
- SCR selective catalytic reduction
- DPF diesel filtration filter
- organically coupled components such as a support member 510 made of an elastic body, it is possible to minimize the influence from vibration caused by the engine driving. As a result, the durability of the abatement device 1 can be greatly increased.
- the diesel filtration filter (DPF) 200 and the selective catalytic reduction (SCR) device 400 are each manufactured in a hemispherical cylindrical shape whose opposite ends face each other, the shock caused by the exhaust gas introduced at high temperature and high pressure can be effectively buffered. This can increase the durability.
- the exhaust gas reduction device for heavy equipment by further comprising a selective catalytic reduction (SCR) device in the diesel filtration filter (DPF) to meet the enhanced diesel engine exhaust gas regulatory requirements, It is possible to minimize the impact from vibration caused by engine driving by providing various dustproof devices such as a diesel filtration filter (DPF) and a selective catalytic reduction (SCR) device mounted on a cowl frame.
- SCR selective catalytic reduction
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Biomedical Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Component Parts Of Construction Machinery (AREA)
Description
Claims (4)
- 중장비의 메인프레임에 장착되는 엔진과 일단부가 연결되는 배기파이프의 타단부에 구비되는 배기가스 저감장치에 있어서,상기 엔진과 인접하는 메인프레임 일측에 장착되어 상기 엔진의 진동에 따른 영향을 저감시키는 카울프레임;일단부가 상기 배기파이프의 타단부와 연통되어 상기 카울프레임 상단부에 장착되고, 디젤산화촉매(DOC)를 내측에 구비하며, 입자상 물질을 포집하는 디젤여과필터(DPF);일단부가 상기 디젤여과필터(DPF) 타단부와 연통되고, 일측이 환원제를 분사하는 분사장치와 연통되는 믹싱파이프; 및상기 믹싱파이프의 타단부와 연통되어 상기 카울프레임 상단부에 장착되고, 상기 분사된 환원제와 배기가스 내의 질소산화물(NOx) 간의 환원반응을 촉진하는 선택적 촉매환원(SCR) 장치를 포함하는 것을 특징으로 하는 중장비용 배기가스 저감장치.
- 제 1 항에 있어서,상기 디젤여과필터(DPF)와 상기 선택적 촉매환원(SCR) 장치는, 원통형으로 이루어지되 양단부는 서로 대향하는 반구형상으로 형성되며, 각각은 상기 카울프레임 상에서 서로 나란하게 장착되는 것을 특징으로 하는 중장비용 배기가스 저감장치.
- 제 2 항에 있어서,상기 배기파이프 및 상기 믹싱파이프 중 적어도 어느 한측에는 하나 이상의 플렉시블 조인트로 연결되는 연결부가 구비되는 것을 특징으로 하는 중장비용 배기가스 저감장치.
- 제 3 항에 있어서,상기 카울프레임과 상기 디젤여과필터(DPF) 및 선택적 촉매환원(SCR) 장치와의 결합은,상기 디젤여과필터(DPF)와 상기 선택적 촉매환원(SCR) 장치의 하단부를 지지하고 상기 카울프레임 상단부에 고정되는 탄성체인 받침부재와, 상기 받침부재 양단부에 구비되어 상기 디젤여과필터(DPF)와 상기 선택적 촉매환원(SCR) 장치의 외주면을 감싸 고정하는 체결밴드를 포함하는 고정부를 통해 이루어지는 것을 특징으로 하는 중장비용 배기가스 저감장치.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/370,622 US9504960B2 (en) | 2012-01-06 | 2012-01-06 | Exhaust gas reduction device for heavy equipment |
| JP2014551172A JP2015510066A (ja) | 2012-01-06 | 2012-01-06 | 建設機械の排気ガス低減装置 |
| BR112014016502A BR112014016502A8 (pt) | 2012-01-06 | 2012-01-06 | aparelho para redução de gás de exaustão que é provido em uma parte da extremidade do tubo de exaustão pela qual a outra parte da extremidade ser conectada a um motor montado sobre uma estrutura principal do equipamento pesado |
| EP12864115.6A EP2801711B1 (en) | 2012-01-06 | 2012-01-06 | Exhaust gas reduction device for heavy equipment |
| KR1020147018497A KR20140116083A (ko) | 2012-01-06 | 2012-01-06 | 중장비용 배기가스 저감장치 |
| PCT/KR2012/000151 WO2013103169A1 (ko) | 2012-01-06 | 2012-01-06 | 중장비용 배기가스 저감장치 |
| CN201280066094.1A CN104040125A (zh) | 2012-01-06 | 2012-01-06 | 用于减少重型设备的废气的装置 |
| CA2862258A CA2862258A1 (en) | 2012-01-06 | 2012-01-06 | Exhaust gas reduction device for heavy equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/KR2012/000151 WO2013103169A1 (ko) | 2012-01-06 | 2012-01-06 | 중장비용 배기가스 저감장치 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013103169A1 true WO2013103169A1 (ko) | 2013-07-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2012/000151 Ceased WO2013103169A1 (ko) | 2012-01-06 | 2012-01-06 | 중장비용 배기가스 저감장치 |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US9504960B2 (ko) |
| EP (1) | EP2801711B1 (ko) |
| JP (1) | JP2015510066A (ko) |
| KR (1) | KR20140116083A (ko) |
| CN (1) | CN104040125A (ko) |
| BR (1) | BR112014016502A8 (ko) |
| CA (1) | CA2862258A1 (ko) |
| WO (1) | WO2013103169A1 (ko) |
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| JP2015190316A (ja) * | 2014-03-27 | 2015-11-02 | ヤンマー株式会社 | エンジン装置 |
| EP2857244A4 (en) * | 2013-08-09 | 2015-11-18 | Komatsu Mfg Co Ltd | SUPPORT MECHANISM, EXHAUST TREATMENT UNIT AND WHEEL LOADER |
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| CN106460367A (zh) * | 2014-06-09 | 2017-02-22 | 沃尔沃建造设备有限公司 | 工程车辆 |
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| JP6518616B2 (ja) * | 2016-03-29 | 2019-05-22 | 株式会社Kcm | 作業車両 |
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| CN106437984B (zh) * | 2016-11-24 | 2018-11-27 | 福州大学 | 一种带有炭烟微粒收集功能的柴油机消声器 |
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| CN110056411B (zh) * | 2018-01-19 | 2025-04-18 | 天纳克(苏州)排放系统有限公司 | 排气后处理装置 |
| JP2020019402A (ja) * | 2018-08-01 | 2020-02-06 | 日立建機株式会社 | 建設機械 |
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| WO2022087279A1 (en) | 2020-10-22 | 2022-04-28 | Cummins Emission Solutions Inc. | Exhaust gas aftertreatment system |
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| DE112022004119T5 (de) | 2021-08-23 | 2024-07-11 | Cummins Emission Solutions Inc. | Auslassprobenahmesystem für Nachbehandlungssystem |
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| US9416707B2 (en) * | 2013-09-30 | 2016-08-16 | Kubota Corporation | Diesel engine |
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Also Published As
| Publication number | Publication date |
|---|---|
| BR112014016502A2 (pt) | 2017-06-13 |
| US20140348716A1 (en) | 2014-11-27 |
| CN104040125A (zh) | 2014-09-10 |
| US9504960B2 (en) | 2016-11-29 |
| KR20140116083A (ko) | 2014-10-01 |
| EP2801711A4 (en) | 2015-08-26 |
| EP2801711A1 (en) | 2014-11-12 |
| BR112014016502A8 (pt) | 2017-07-04 |
| JP2015510066A (ja) | 2015-04-02 |
| CA2862258A1 (en) | 2013-07-11 |
| EP2801711B1 (en) | 2017-06-21 |
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