WO2015126034A1 - 환원제 분사 모듈의 냉각 장치 및 이를 갖는 선택적 촉매 환원 시스템 - Google Patents
환원제 분사 모듈의 냉각 장치 및 이를 갖는 선택적 촉매 환원 시스템 Download PDFInfo
- Publication number
- WO2015126034A1 WO2015126034A1 PCT/KR2014/010628 KR2014010628W WO2015126034A1 WO 2015126034 A1 WO2015126034 A1 WO 2015126034A1 KR 2014010628 W KR2014010628 W KR 2014010628W WO 2015126034 A1 WO2015126034 A1 WO 2015126034A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- reducing agent
- agent injection
- injection module
- cooling
- coolant
- Prior art date
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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
- F01N3/18—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
- 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]
- F01N3/208—Control of selective catalytic reduction [SCR], e.g. dosing of reducing agent
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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
- B01D53/9413—Processes characterised by a specific catalyst
- B01D53/9418—Processes characterised by a specific catalyst for removing nitrogen oxides by selective catalytic reduction [SCR] using a reducing agent in a lean exhaust gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
- F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
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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
- F01N2610/11—Adding substances to exhaust gases the substance or part of the dosing system being cooled
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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
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
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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
- the present invention relates to a cooling device of a reducing agent injection module and a selective catalytic reduction system having the same, and more particularly, to a cooling device of a reducing agent injection module for treating exhaust gas aftertreatment of an engine and a selective catalytic reduction system having the same.
- the selective catalytic reduction device may be provided as an exhaust gas aftertreatment device for reducing pollutants contained in exhaust gas discharged from the engine.
- the selective catalytic reduction apparatus may include a reducing agent injection module for injecting a reducing agent in the flow direction of the exhaust gas.
- the engine coolant may be circulated through a coolant circulation line connected to the reducing agent injection module to prevent the reducing agent injection module from being heated by the high temperature exhaust gas.
- the coolant pump also stops so that the coolant does not circulate.
- the reducing agent injection module is continuously heated from a high temperature exhaust pipe, so that the reducing agent injection module is deformed by heat or the injection port of the reducing agent injection module is blocked due to solid matter evaporated from urea water.
- One object of the present invention is to provide a cooling device of a reducing agent injection module having improved cooling performance at low cost.
- Another object of the present invention is to provide a selective catalytic reduction system having the aforementioned cooling device.
- the cooling device of the reducing agent injection module is connected to the module cooling channel for cooling the reducing agent injection module and the cooling water circulation for circulating the cooling water Line, a closed circuit circulation line connected to the cooling water circulation lines at the front and the rear of the module cooling channel to connect the cooling water circulation line to selectively form a closed circuit, and provided in the closed circuit and transferred to the natural convection from the module cooling channel. At least one heat dissipation unit for dissipating heat.
- the cooling device of the reducing agent injection module may further include a closed circuit control valve provided in the closed circuit circulation line to control a flow direction of the cooling water.
- the reducing agent injection module may be installed at a position lower in the vertical direction than the heat dissipation portion so that the cooling water becomes natural convection through the closed circuit circulation line.
- the closed loop control valve may open the closed loop circulation line when the coolant pump for supplying the coolant is stopped to naturally convection the coolant through the closed circuit.
- the coolant circulation line may include a coolant supply line connected to an inlet of the module cooling channel and a coolant return line connected to an outlet of the module cooling channel.
- a first heat dissipation unit may be disposed in the cooling water recovery line, and a second heat dissipation unit may be disposed in the cooling water supply line.
- one end of the closed circuit circulation line is connected to a cooling water return line connected to an outlet of the module cooling channel, and the other end of the closed circuit circulation line is supplied with cooling water connected to an inlet of the module cooling channel. Can be connected to the line.
- the heat dissipation part may include a heat pipe or a heat reservoir.
- the reducing agent injection module may be installed in an exhaust pipe to inject a reducing agent into the exhaust pipe.
- a selective reduction catalyst may be installed in the exhaust pipe, and the reducing agent injection module may be installed in front of the selective reduction catalyst.
- a selective catalytic reduction system for achieving another object of the present invention described above is installed in an exhaust pipe through which exhaust gas is discharged from an engine, and a reducing agent injection for injecting a reducing agent into the exhaust pipe to reduce nitrogen oxides in the exhaust gas.
- a module a cooling water circulation line connected to a module cooling channel of the reducing agent injection module, a cooling water pump installed in the cooling water circulation line for supplying cooling water to the module cooling channel, and connected to front and rear of the module cooling channel to the cooling water circulation line.
- a closed circuit circulation line for constituting a closed circuit passing through the module cooling channel, and at least one heat dissipation portion provided in the closed circuit and for dissipating heat transferred from the module cooling channel to natural convection.
- the selective catalytic reduction system may further include a closed circuit control valve connecting the closed circuit circulation line to the cooling water circulation line and controlling the flow direction of the cooling water.
- the closed circuit control valve may open the closed circuit circulation line when the coolant pump stops to naturally convection the coolant through the closed circuit.
- the heat dissipation unit may include a first heat dissipation unit disposed in the cooling water recovery line of the cooling water circulation line and a second heat dissipation unit disposed in the cooling water supply line of the cooling water circulation line.
- the heat dissipation part may include a pipe or a reservoir.
- the selective catalytic reduction system may further include a selective reduction catalyst installed behind the reducing agent injection module in the exhaust pipe.
- the coolant when the coolant pump is in operation, the coolant is circulated through the coolant circulation line to cool the reducing agent injection module, and when the coolant pump is stopped, a separate closed circuit independent of the coolant circulation line is configured.
- the cooling water may naturally convection through the closed circuit to cool the reducing agent injection module.
- a simple closed circuit can be configured to cool the reducing agent injection module to a desired temperature range through a natural convection phenomenon without using equipment such as an expensive electric pump to cool the reducing agent injection module. have. This can reduce costs and increase the equipment installation space of the engine system.
- FIG. 1 is a diagram illustrating a selective catalytic reduction system in accordance with example embodiments.
- FIG. 2 is a block diagram illustrating the selective catalytic reduction system of FIG. 1.
- FIG. 3 is a cross-sectional view showing a cooling device of the reducing agent injection module of FIG.
- FIG. 4A and 4B illustrate various structures of the heat dissipation unit of the cooling apparatus of FIG. 3.
- FIG. 5 is a flowchart illustrating a cooling control method of a reducing agent injection module in the selective catalytic reduction system of FIG. 1.
- first and second may be used to describe various components, but the components should not be limited by the terms. The terms may be used for the purpose of distinguishing one component from another component.
- first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
- FIG. 1 is a diagram illustrating a selective catalytic reduction system in accordance with example embodiments.
- FIG. 2 is a block diagram illustrating the selective catalytic reduction system of FIG. 1.
- 3 is a cross-sectional view showing a cooling device of the reducing agent injection module of FIG. 4A and 4B illustrate various structures of the heat dissipation unit of the cooling apparatus of FIG. 3.
- the selective catalytic reduction system includes a selective catalyst reduction including a reducing agent injection module 60 for injecting a reducing agent to reduce nitrogen oxides in exhaust gas discharged from the engine 10. , SCR) device, and a cooling device of the reducing agent injection module for cooling the reducing agent injection module 60.
- a selective catalyst reduction including a reducing agent injection module 60 for injecting a reducing agent to reduce nitrogen oxides in exhaust gas discharged from the engine 10. , SCR) device, and a cooling device of the reducing agent injection module for cooling the reducing agent injection module 60.
- the SCR apparatus may include a selective reduction catalyst 44 installed in the exhaust pipe 50 and a reducing agent injection module for injecting a reducing agent into the exhaust pipe 50 in front of the selective reduction catalyst 52.
- 60 may include.
- a diesel oxidation catalyst (DOC) device 42 may be provided in front of the SCR device.
- DOC diesel oxidation catalyst
- the reducing agent injection module 60 may inject a reducing agent such as urea to reduce nitrogen oxides in the exhaust gas discharged from the engine 10. Since the temperature of the exhaust gas discharged from the engine 10 is a high temperature of several hundred degrees Celsius, the reducing agent injected in the exhaust pipe 50 may be immediately vaporized. The vaporized reducing agent may be mixed with the exhaust gas and catalytically react the reducing agent with the nitrogen oxide using a selective reduction catalyst 52 to reduce the nitrogen oxide to nitrogen gas and water.
- a reducing agent such as urea
- the cooling device of the reducing agent injection module is installed in the cooling water circulation line 80 and the cooling water circulation line 80 connected to the module cooling channel 62 of the reducing agent injection module 60 to cool the water.
- the closed loop circulation line 102 may be connected to the cooling water circulation line 80 in front of and behind the module cooling channel 62. Specifically, one end of the closed circuit circulation line 102 may be connected to the cooling water recovery line 84, and the other end of the closed circuit circulation line 102 may be connected to the cooling water supply line 82 to form the closed circuit 100.
- the coolant circulation line 80 and the closed loop circulation line 102 may include hoses, pipes, and the like.
- the heat dissipation unit 110 may include a first heat dissipation unit 110A disposed on the cooling water supply line 82 and a second heat dissipation unit 110B disposed on the cooling water recovery line 84.
- the first heat dissipation unit 110A is disposed at a portion 82a of the cooling water supply line 82 and the second heat dissipation unit 110B is disposed at the portion 84a of the cooling water recovery line 84 to reduce the spraying module 60. It can serve to cool the heat transferred from.
- a third heat dissipation unit (not shown) may be additionally disposed in the closed loop circulation line 102.
- one heat dissipation unit may be disposed in any one of the cooling water supply line 82 and the cooling water recovery line 84 or the heat dissipation unit may be disposed only in the closed circuit circulation line 102.
- the closed circuit 100 includes a module cooling channel 62 of the reducing agent injection module 60, a portion 84a of the coolant recovery line 84 in which the second heat dissipation unit 110B is disposed, and a closed circuit. It may include a circulation line 102 and a portion 82a of the second cooling water supply line 82 in which the first heat dissipating portion 110A is disposed.
- the closed circuit 100 includes a module cooling channel 62 of the reducing agent injection module 60 and may be a closed circuit independent from the cooling water circulation line 80.
- the closed space inside the closed circuit 100 may be filled with cooling water.
- the coolant may be a fluid having good heat transfer properties.
- the cooling device of the reducing agent injection module may further include a closed circuit control valve 120 connecting the closed circuit circulation line 102 to the cooling water circulation line 80 and controlling the flow direction of the cooling water.
- a closed circuit control valve 120 connecting the closed circuit circulation line 102 to the cooling water circulation line 80 and controlling the flow direction of the cooling water.
- One end of the closed loop circulation line 102 may be connected to the coolant return line 84 by a closed loop control valve 120.
- the closed loop control valve 120 may be a three-way control valve.
- the closed loop control valve 120 may close the closed loop circulation line 102 and circulate the coolant through the coolant circulation line 80.
- the closed circuit control valve 120 may open the closed circuit circulation line 102 and allow the coolant to naturally convection through the closed circuit 100.
- the flow of coolant through the coolant circulation line 80 may be stopped.
- the closed circuit circulation line 102 may be opened by the operation of the closed circuit control valve 120 to form the closed circuit 100.
- the reducing agent injection module 60 continues to be heated by the hot exhaust pipe 50 and the heat from the module cooling channel 62 in the reducing agent injection module 60 is removed through natural convection by the coolant in the closed circuit 100. 2 After the heat dissipation unit 110B and the first heat dissipation unit 110A are transmitted, the first and second heat dissipation units 110A and 110B may discharge the transferred heat to the outside. Therefore, even when the coolant pump 70 is stopped, the reducing agent injection module 60 can be cooled through natural convection in the closed circuit 100.
- the closed circuit 100 may further include a check valve (not shown) to provide flow direction of the fluid in the closed circuit 100. That is, the coolant in the closed circuit 100 may flow in one direction by the check valve.
- the closed circuit 100 may be further provided with a pressing unit (not shown) to increase the pressure of the closed space of the closed circuit 100.
- the cooling device of the reducing agent injection module cools the engine 30, the turbocharger (not shown), etc. together with the reducing agent injection module 60 using one coolant pump 70. You can. Alternatively, the cooling device cools only the reducing agent injection module 60, and the engine, the turbocharger, etc. may be cooled using a separate coolant pump.
- the heat dissipation unit may include various types of cooling structures.
- the heat dissipation part may include a heat pipe 112.
- the heat pipe 112 may extend in a zigzag shape.
- the heat pipe 112 may include a metal or a synthetic resin having excellent heat transfer rate.
- the heat dissipation unit may include a heat reservoir. Material, heat capacity and cooling performance of the heat pipe and the heat reservoir may be determined in consideration of a heating temperature, an operating temperature range, and the like of the reducing agent injection module 60.
- FIG. 5 is a flowchart illustrating a cooling control method of a reducing agent injection module in the selective catalytic reduction system of FIG. 1.
- fuel gas is supplied to the engine 10 to operate the engine 10, and the exhaust gas discharged from the engine 10 may be discharged through the exhaust gas aftertreatment device.
- fuel gas may be supplied from the fuel supply unit (not shown) and mixed with the air supplied through the turbocharger 20 in the mixer 16 and then supplied to the intake manifold 12 of the engine 10. have.
- the air supplied to the engine 10 through the turbocharger 20 may be cooled by the intercooler 22.
- the exhaust gas discharged from the exhaust manifold 14 of the engine 10 may be discharged to the outside through the exhaust pipe 50 through the turbocharger 20.
- the exhaust gas passing through the turbocharger 20 may be discharged to the outside through the diesel oxidation catalyst (DOC) device 42 and the selective reduction catalyst 44.
- the reducing agent injection module 60 may inject the reducing agent into the exhaust pipe 50 in front of the selective reduction catalyst 44. Since the temperature of the exhaust gas discharged from the engine 10 is a high temperature of several hundred degrees Celsius, the reducing agent injected in the exhaust pipe 50 may be immediately vaporized. The vaporized reducing agent may be mixed with the exhaust gas and catalytically react the reducing agent with the nitrogen oxide using the selective reduction catalyst 44 to reduce the nitrogen oxide to nitrogen gas and water.
- the cooling device of the reducing agent injection module may circulate the cooling water through the cooling water circulation line 80 to prevent the temperature of the reducing agent injection module 60 from being increased by the high temperature exhaust gas.
- the closed circuit control valve 120 may be operated depending on whether the coolant pump 70 is operated. It may be determined whether the operation (S110).
- the coolant pump 70 is connected to the engine 10, and the coolant pump 70 also operates when the engine 10 operates, while the engine 10 stops and the coolant pump 70 can also stop. .
- the coolant pump 70 connected to the engine 10 may also start to circulate the coolant through the coolant circulation line 80.
- the controller (not shown) controls the operation of the closed loop control valve 120, and the closed loop control valve 120 may open the coolant recovery line 84 to form a cooling circulation circuit (S120).
- the closed loop circulation line 102 is closed by the closed loop control valve 120. Therefore, the coolant may be circulated only through the coolant circulation line 80 to cool the reducing agent injection module 60 (S140).
- the cooling water pump 70 also stops the operation, the circulation of the cooling water through the cooling water circulation line 80 is stopped.
- the closed circuit control valve 120 may configure the natural convection closed circuit 100 by opening the closed circuit circulation line 102 (S130).
- the coolant recovery line 84 is closed by the closed loop control valve 120. Therefore, the coolant may circulate only through the natural convection closed circuit 100 to cool the reducing agent injection module 60 using natural convection (S140).
- the temperature of the reducing agent injection module 60 may continue to increase.
- the closed loop circulation line 102 is not opened by the closed loop control valve 120, the reducing agent injection module 60 may be heated to a temperature of about 150 ° C. or more.
- the heat from the reducing agent injection module 60 passes through the natural convection by the coolant in the closed circuit 100.
- the first and second heat dissipating parts 110A and 110B may discharge the transferred heat to the outside.
- the reducing agent injection module 60 may be cooled and maintained in a temperature range of about 110 ° C. or less.
- coolant circulation line 80 coolant circulation line 80 to cool the reducing agent injection module 60
- coolant circulation line 80 Separate closed circuit (100) is configured and the cooling water can condense naturally through the closed circuit (100) to cool the reducing agent injection module (60).
- Natural convection of the cooling water may be more efficiently performed when a heat source such as a reducing agent injection module 60 is installed at a position lower in the vertical direction than the heat radiating unit.
- a heat source such as a reducing agent injection module 60
- the coolant is vaporized or the density of the coolant is lowered.
- the vaporized or less dense cooling water is cooled by moving upwardly to the heat dissipation unit at a relatively high position along the closed loop circulation line, and the relatively high density of cooling water is moved back to the relatively low position reducing agent injection module 60 by The coolant is circulated along the closed loop circulation line. This natural convection may continue until cooling of the reducing agent injection module 60 is complete.
- a simple closed circuit is constructed without using equipment such as an expensive electric pump to cool the reducing agent injection module 60, thereby reducing the reduction agent injection module 60 through natural convection. It can be cooled to the desired temperature range. This can reduce costs and increase the equipment installation space of the engine system.
- module cooling channel 70 coolant pump
- cooling water supply line 84 cooling water return line
- closed circuit 102 closed circuit circulation line
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Abstract
Description
Claims (9)
- 환원제 분사 모듈을 냉각하기 위해 모듈 냉각 채널에 연결되며 냉각수를 순환시키기 위한 냉각수 순환 라인;상기 모듈 냉각 채널의 전방 및 후방의 상기 냉각수 순환 라인에 접속되어 상기 냉각수 순환 라인이 선택적으로 폐회로가 형성되도록 연결하는 폐회로 순환 라인; 및상기 폐회로에 구비되고, 상기 모듈 냉각 채널로부터 자연대류로 전달된 열을 방출하기 위한 적어도 하나의 방열부를 포함하는 환원제 분사 모듈의 냉각 장치.
- 제 1 항에 있어서, 상기 폐회로 순환 라인에 구비되어 상기 냉각수의 흐름 방향을 제어하는 폐회로 제어 밸브를 더 포함하는 것을 특징으로 하는 환원제 분사 모듈의 냉각 장치.
- 제 2 항에 있어서, 상기 환원제 분사 모듈은 상기 냉각수가 상기 폐회로 순환 라인을 통해 자연대류가 되도록 상기 방열부보다 수직 방향으로 낮은 위치에 설치되는 것을 특징으로 하는 환원제 분사 모듈의 냉각 장치.
- 제 3 항에 있어서, 상기 폐회로 제어 밸브는 상기 냉각수를 공급하기 위한 냉각수 펌프가 정지할 때 상기 폐회로 순환 라인을 개방하도록 설치된 것을 특징으로 하는 환원제 분사 모듈의 냉각 장치.
- 제 1 항에 있어서, 상기 냉각수 순환 라인은 상기 모듈 냉각 채널의 유입부에 연결된 냉각수 공급 라인 및 상기 모듈 냉각 채널의 유출부에 연결되는 냉각수 회수 라인을 포함하는 것을 특징으로 하는 환원제 분사 모듈의 냉각 장치.
- 제 5 항에 있어서, 상기 냉각수 회수 라인에는 제1 방열부가 배치되고, 상기 냉각수 공급 라인에는 제2 방열부가 배치된 것을 특징으로 하는 환원제 분사 모듈의 냉각 장치.
- 제 1 항에 있어서, 상기 방열부는 열 파이프 또는 열 저장고를 포함하는 것을 특징으로 하는 환원제 분사 모듈의 냉각 장치.
- 제 1 항에 있어서, 상기 환원제 분사 모듈은 배기 파이프에 설치되어 상기 배기 파이프 내부로 환원제를 분사하는 것을 특징으로 하는 환원제 분사 모듈의 냉각 장치.
- 제 8 항에 있어서, 상기 배기 파이프 내에는 선택적 환원 촉매가 설치되고, 상기 환원제 분사 모듈은 상기 선택적 환원 촉매의 전방에 설치되는 것을 특징으로 하는 환원제 분사 모듈의 냉각 장치.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US15/120,644 US10066527B2 (en) | 2014-02-21 | 2014-11-06 | Cooling device for reducing agent injection module and selective catalytic reduction system having the same |
KR1020167021126A KR101796560B1 (ko) | 2014-02-21 | 2014-11-06 | 환원제 분사 모듈의 냉각 장치 |
EP14882978.1A EP3109427B1 (en) | 2014-02-21 | 2014-11-06 | Cooling device of reducing-agent injection module and selective catalyst reduction system having same |
CN201480076118.0A CN106030062B (zh) | 2014-02-21 | 2014-11-06 | 还原剂喷射模块的冷却装置及具有其的选择性催化剂还原系统 |
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KR20140020640 | 2014-02-21 | ||
KR10-2014-0020640 | 2014-02-21 |
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WO2015126034A1 true WO2015126034A1 (ko) | 2015-08-27 |
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PCT/KR2014/010628 WO2015126034A1 (ko) | 2014-02-21 | 2014-11-06 | 환원제 분사 모듈의 냉각 장치 및 이를 갖는 선택적 촉매 환원 시스템 |
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US (1) | US10066527B2 (ko) |
EP (1) | EP3109427B1 (ko) |
KR (1) | KR101796560B1 (ko) |
CN (1) | CN106030062B (ko) |
WO (1) | WO2015126034A1 (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2017078505A1 (ko) * | 2015-11-05 | 2017-05-11 | 두산인프라코어 주식회사 | 환원제 분사 모듈의 냉각 장치 및 이를 갖는 선택적 엔진 냉각 시스템 |
Families Citing this family (2)
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DE102016205105A1 (de) * | 2016-03-29 | 2017-10-05 | Robert Bosch Gmbh | Verfahren zum Betreiben eines Dosiersystems für die Reduktionsmittellösung einer SCR-Katalysatoreinrichtung in dem Abgasstrang einer Brennkraftmaschine |
KR102322256B1 (ko) * | 2017-05-08 | 2021-11-04 | 현대자동차 주식회사 | 연료 개질 시스템 |
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- 2014-11-06 CN CN201480076118.0A patent/CN106030062B/zh not_active Expired - Fee Related
- 2014-11-06 WO PCT/KR2014/010628 patent/WO2015126034A1/ko active Application Filing
- 2014-11-06 US US15/120,644 patent/US10066527B2/en active Active
- 2014-11-06 KR KR1020167021126A patent/KR101796560B1/ko active IP Right Grant
- 2014-11-06 EP EP14882978.1A patent/EP3109427B1/en not_active Not-in-force
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Also Published As
Publication number | Publication date |
---|---|
US20170016372A1 (en) | 2017-01-19 |
EP3109427B1 (en) | 2018-08-15 |
EP3109427A1 (en) | 2016-12-28 |
CN106030062A (zh) | 2016-10-12 |
KR20160107225A (ko) | 2016-09-13 |
US10066527B2 (en) | 2018-09-04 |
CN106030062B (zh) | 2018-10-30 |
KR101796560B1 (ko) | 2017-12-12 |
EP3109427A4 (en) | 2017-08-16 |
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