WO2016133227A1 - Dispositif de chauffage de solution aqueuse d'urée - Google Patents

Dispositif de chauffage de solution aqueuse d'urée Download PDF

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Publication number
WO2016133227A1
WO2016133227A1 PCT/KR2015/001559 KR2015001559W WO2016133227A1 WO 2016133227 A1 WO2016133227 A1 WO 2016133227A1 KR 2015001559 W KR2015001559 W KR 2015001559W WO 2016133227 A1 WO2016133227 A1 WO 2016133227A1
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WO
WIPO (PCT)
Prior art keywords
urea
heating
cooling water
unit
urea solution
Prior art date
Application number
PCT/KR2015/001559
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English (en)
Korean (ko)
Inventor
김식
전충극
김화남
표세준
Original Assignee
지금강 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 지금강 주식회사 filed Critical 지금강 주식회사
Publication of WO2016133227A1 publication Critical patent/WO2016133227A1/fr

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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
    • 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
    • F01N3/2896—Liquid catalyst carrier
    • 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]
    • 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
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/10—Adding substances to exhaust gases the substance being heated, e.g. by heating tank or supply line of the added substance
    • 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
    • F01N2610/1406—Storage means for substances, e.g. tanks or reservoirs
    • 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 a urea aqueous solution heating apparatus, and more particularly, to improve the heat transfer efficiency of the heating portion, and relates to an urea aqueous solution heating apparatus compatible with the electric heater method and the cooling water circulation method.
  • a vehicle equipped with a diesel engine injects an aqueous urea solution with a selective catalytic reduction (SCR) catalyst to reduce NOx contained in exhaust gas.
  • SCR selective catalytic reduction
  • the aqueous urea solution is stored inside the urea tank installed in the vehicle. If the outside temperature is lower than the freezing point of the aqueous urea solution, the urea solution cannot be injected into the front end of the SCR catalyst. In this case, the vehicle has a problem in that the engine output is limited or the NOx emitted from the engine is not reduced.
  • the method of forming the material of the urea tank with plastic has a problem in that the urea aqueous solution is eventually frozen when the urea tank is exposed to low temperature for a long time.
  • the method of circulating the coolant discharged from the engine to the urea tank must circulate the coolant sufficiently heated by the engine to the urea tank, so that at the initial start of the engine, the urea solution cannot be melted with the coolant,
  • the drain pipe should be provided separately, and as a result, there is a problem that the installation structure for circulating the cooling water becomes complicated and the installation cost increases.
  • An object of the present invention is to improve the heat transfer efficiency of the heating portion provided in the urea tank, and to provide a urea aqueous solution heating apparatus that can improve the compatibility by melting the urea aqueous solution by the cooling unit circulation method or the electric heater method.
  • the urea aqueous solution heating apparatus includes: an installation portion installed in the urea tank installation port, and connected to the installation portion, the heating portion extending into the urea tank and the heating portion is generated in the heating portion It characterized in that it comprises a heat transfer member for diffusing heat.
  • the heating unit may include a vertical unit extending from the installation unit into the urea tank and an extension unit refracted to one side from the vertical unit.
  • the heat transfer member is characterized in that it comprises a metallic heat diffusion plate in contact with the heating portion to transfer the heat of the heating portion to the aqueous urea solution.
  • the thermal diffusion plate is characterized in that a plurality of circulation convection holes are formed.
  • the thermal diffusion plate is formed to be curvature to be fixed to the heating portion is characterized in that the elastic piece having a self-elasticity is provided.
  • the heat transfer member is characterized in that it is further provided with a buffer for preventing the flow of the heating portion.
  • the installation unit is characterized in that the switching unit for supplying cooling water or power to the heating unit.
  • the switching unit is provided in the installation unit is connected to the heating unit, the cooling water circulation port and the cooling water circulation port connected to the cooling water circulation hose so that the cooling water is circulated to the heating unit is provided to supply power to the cooling water circulation port It characterized in that it comprises a power supply port.
  • cooling water circulation port characterized in that it further comprises a stopper for sealing the power supply port.
  • the urea aqueous solution heating apparatus can circulate the cooling water to the heating portion extending into the urea tank by the switching unit provided in the installation portion, or supply the external electricity to the heating portion to melt the urea aqueous solution is compatible Is improved.
  • the present invention is made of a heat-conductive plastic heating unit can prevent corrosion, it is easy to manufacture.
  • the present invention is provided with a heat transfer member in the heating portion to improve the heat transfer efficiency, the connection member can buffer the vibration by the buffer portion.
  • the assemblability is improved, and an additional fastening member can be removed.
  • FIG. 1 is an exploded perspective view of a urea solution heating apparatus according to an embodiment of the present invention.
  • Figure 2 is a perspective view showing the inside of the urea solution heating apparatus according to an embodiment of the present invention.
  • FIG. 3 is a cross-sectional view taken along the line A-A of FIG.
  • Figure 4 is an enlarged view of the main portion showing the installation of the urea solution heating apparatus according to an embodiment of the present invention.
  • FIG. 5 is a view showing the cooling water circulation method and the electric heater method of the urea solution heating apparatus according to an embodiment of the present invention.
  • Figure 6 is a perspective view showing a heat transfer member of the urea solution heating apparatus according to an embodiment of the present invention.
  • FIG. 7 is a cross-sectional view taken along line B-B in FIG.
  • FIG. 8 is a view showing the action of the heat transfer member of the urea solution heating apparatus according to an embodiment of the present invention.
  • FIG. 1 is an exploded perspective view of a urea solution heating apparatus according to an embodiment of the present invention
  • Figure 2 is a perspective view showing the inside of the urea solution heating apparatus according to an embodiment of the present invention
  • Figure 3 is AA of Figure 2 4 is an enlarged view illustrating main parts of the urea solution heating apparatus according to an embodiment of the present invention
  • FIG. 5 is a cooling water circulation method and an electric heater method of the urea solution heating apparatus according to an embodiment of the present invention.
  • Figure 6 is a perspective view showing a heat transfer member of the urea solution heating apparatus according to an embodiment of the present invention
  • Figure 7 is a cross-sectional view BB of Figure 6
  • Figure 8 is a urea according to an embodiment of the present invention Figure showing the action of the heat transfer member of the aqueous solution heating apparatus.
  • the urea solution heating apparatus 100 includes an installation unit 120, a heating unit 140, and a heat transfer member 150.
  • the urea tank 110 stores an aqueous urea solution therein and may be made of a synthetic resin having a low thermal conductivity to prevent the heat of the urea solution from being released to the outside.
  • the urea tank 110 is made of a plastic material as described above, the urea aqueous solution can be prevented from being frozen at a low temperature below a certain point.
  • the urea tank 110 may be further installed with a heat insulating material to further improve the heat insulating effect.
  • the heat insulator any one of polyurethane, polystyrene, hollow silica gel may be employed, and any one or more of these may be combined.
  • the upper end of the urea tank 110 is formed with an installation port 112 is mounted 120.
  • the installation unit 120 is mechanically fastened in a standing state in the installation hole 112 formed in the urea tank 110.
  • the installation unit 120 is provided with a urea solution supply port 122 to which the urea solution is supplied, and a urea solution return port 124 to which the urea solution is returned.
  • a lower portion of the installation unit 120 extends into the urea tank 110 and is connected to the urea solution supply port 122 to install a suction pipe 123 for supplying the urea solution with the SCR catalyst, and returning the urea solution.
  • a return pipe 125 is installed to connect to the port 124 and return the aqueous urea solution returned from the SCR catalyst to the urea tank 110.
  • a guide 130 extending into the urea tank 110 is formed at the center of the installation port 112, and a floater 132 is provided to move up and down along the guide 130 by changing the water level of the urea solution. Therefore, the water level of the urea aqueous solution can be measured by the plotter 132.
  • the heating unit 140 is connected to the installation unit 120, extends into the urea tank 110, and is hollow formed.
  • the heating part 140 includes a vertical part 142 extending from the installation part 120 into the urea tank 110 and an extension part 144 refracted to one side in the vertical part 142.
  • the heating unit 140 is made of a thermally conductive plastic material.
  • Thermally conductive plastic refers to a plastic having excellent thermal conductivity, and the heat transfer rate is increased by 5 to 10 times compared to conventional plastics, and thus has almost similar thermal conductivity to metals.
  • the heat transfer member 150 is provided in the heating unit 140 to diffuse the heat generated from the heating unit 140, the heat diffusion plate for transmitting the heat of the heating unit 140 to the urea solution in contact with the heating unit 140 152.
  • the thermal diffusion plate 152 may be made of a metal material having excellent thermal conductivity, or may be made of the same thermally conductive plastic material as the heating unit 140.
  • the thermal diffusion plate 152 is provided in the extension part 144 of the heating unit 140 to diffuse the heat of the heating unit 140, the plurality of circulation convection holes 154 are formed in the thermal diffusion plate 152. This allows smooth convection of the urea solution by communicating the upper and lower portions of the thermal diffusion plate 152.
  • the thermal diffusion plate 152 is formed to be curvature so as to be fixed to the heating unit 140 is provided with an elastic piece 156 having its own elasticity.
  • the elastic piece portion 156 is formed in the cross-sectional shape of the letter 'C' at the edge of the thermal diffusion plate 152 to surround a portion of the circumference of the extension portion 144 and is fixed by elastic force. For this reason, the thermal diffusion plate 152 may be fixed to the heating unit 140 without a separate fastening member.
  • the heat diffusion plate 152 is provided with a seating groove 158 on which the guide 130 and the plotter 132 are seated, and a plurality of through holes 159 are formed in the seating recess 158.
  • the heat transfer member 150 is further provided with a buffer 160 to prevent the flow of the heating unit 140.
  • the buffer unit 160 is made of a rubber material, is coupled to the thermal diffusion plate 152, and is in contact with the inner bottom surface of the urea tank 110.
  • a fastening groove 162 fastened to the thermal diffusion plate 152 is formed on the circumferential surface of the buffer unit 160, and is hollowly formed, and the bottom surface is formed in an uneven shape. This may prevent the convection of the aqueous urea solution from being interfered by the buffer 160.
  • the installation unit 120 is provided with a switching unit 170 for supplying cooling water or power to the heating unit 140.
  • the heating unit 140 may melt the urea solution by circulation of the cooling water when the cooling water is circulated through the switching unit 170, and when electric power is applied through the switching unit 170, by the electric heater method. It is also possible to melt an aqueous urea solution.
  • the switching unit 170 is provided in the installation unit 120 as shown in Figure 4 is connected to the heating unit 140, the cooling water circulation port is connected to the cooling water circulation hose so that the cooling water is circulated to the heating unit 140 And a power supply port 174 provided at the cooling water circulation port 172 and the cooling water circulation port 172 to supply power to the cooling water circulation port 172.
  • the power supply port 174 may be provided in the space 121 formed in the installation unit 120, and the space 121 may be covered by a cover. At this time, when used in the electric heater method using the power supply port 174 as shown in Figure 5 is provided with a circuit board for controlling the temperature of the heating unit 140 in the space 121, the circuit board is external The power supplied from the controller is controlled and supplied to the power supply port 174.
  • the cooling water circulation port 172 protrudes outward from the space 121, like the urea solution supply port 122 and the urea solution return port 124.
  • the stopper 175 is provided with an O-ring to ensure internal pressure and airtightness, so that the coolant may be circulated through the coolant circulation port 172.
  • the heating unit 140 is made of a heating tube through which the cooling water can be circulated, in the case of the electric heater method using the power supply port 174, the power is The heating rod is supplied (see Fig. 5).
  • the urea tank 110 is made of a synthetic resin having a low thermal conductivity in order to prevent the heat is discharged to the outside, the insulation is added below the freezing point of the urea solution Freezing at low temperatures can be suppressed.
  • the installation unit 120 is coupled to the installation port 112 of the urea tank 110.
  • the installation unit 120 is mechanically fastened in an airtight state to the installation port 112, and the installation unit 120 returns to the urea aqueous solution supply port 122 and the urea aqueous solution that are refracted to the inside of the urea tank 110.
  • the port 124 and the switching unit 170 are provided.
  • the urea solution supply port 122 is connected to the suction pipe 123 extending into the urea tank 110, and the urea solution return port 124 is connected to the return pipe 125.
  • the installation unit 120 is formed with a guide 130 extending into the urea tank 110, the guide 130 is provided with a floater 132 to move up and down along the guide 130 by the water level of the urea solution.
  • the level of the urea aqueous solution can be measured by the plotter 132.
  • the conversion unit 170 includes a cooling water circulation port 172 and a power supply port 174, and is connected to the heating unit 140 provided in the urea tank 110.
  • the heating unit 140 includes a vertical portion 142 and an extension 144 as shown in FIG. 2 and extends into the urea tank 110.
  • the heat diffusion plate 152 is coupled to the extension 144.
  • the coupling of the thermal diffusion plate 152 is formed on the elastic piece portion 156 formed to be curvature at the edge of the thermal diffusion plate 152, the thermal diffusion plate 152 is pressed to the extension portion 144 side, the elastic piece portion 156
  • the elastic piece 156 is fixed while surrounding the circumference of the extension part 144 by its elasticity.
  • the buffer unit 160 is coupled to the thermal diffusion plate 152.
  • the bottom of the buffer unit 160 is in contact with the bottom surface of the urea tank 110 to prevent the flow of the heating unit 140. That is, the heating unit 140 has an upper end fixed to the installation unit 120, the lower end is supported by the buffer unit 160 to prevent flow when an external shock occurs, the shock can be attenuated by the buffer unit 160. have.
  • the heat diffusion plate 152 is formed with a circular convection hole 154 to form a smooth circulation convection of a smooth urea solution as shown in Figure 7 and 8 improves the thermal efficiency.
  • the buffer unit 160 is also hollow, and the bottom portion in contact with the bottom surface is formed in an uneven shape, the circulation convection is also possible through the buffer unit 160.
  • the switching unit 170 is composed of a cooling water circulation port 172 and the power supply port 174, it can supply the cooling water or electricity to the heating unit 140 as a heat source. That is, the switching unit 170 connected to the heating unit 140 may be connected to the cooling water circulation hose by the cooling water circulation port 172 to circulate the cooling water in the heating unit 140 to melt the urea solution, or to supply power. An external power source is connected to the port 174 to supply power, thereby melting the aqueous urea solution by an electric heater method.
  • the cooling water circulation port 172 is connected to the engine and the cooling water circulation hose, the power supply port 174 is It is sealed by the stopper 175.
  • the stopper 175 is provided with an O-ring so that the cooling water circulation port 172 may ensure pressure resistance and airtightness.
  • the heating unit 140 is made of a heating tube may be a cooling water flow.
  • the aqueous urea solution in the above state is driven, it is supplied to the cooling water circulation port 172 through the cooling water cooling water circulation hose delivered from the engine is circulated through the heating unit 140. Cooling water circulating in the heating unit 140 heat-exchanges with the urea solution to melt the frozen urea solution.
  • the urea solution melted by the heating unit 140 is sucked through the suction pipe 123 and transferred to the SCR catalyst along the urea solution supply port 122, and the urea solution returned from the SCR catalyst is the urea solution return port 124. ) And return pipe 125 are returned.
  • the power supply port 174 sealed by the plug 175 is opened, and the power supply port 174 is electrically connected to the generator.
  • the stopper 175 separated from the power supply port 174 is screwed to the cooling water circulation port 172 is fixed. Since the cooling water circulation port 172 is blocked because it is not a cooling water circulation method, foreign matters may be prevented from flowing into the cooling water circulation port 172 and the loss of the stopper 175 may be prevented.
  • the space 121 of the installation unit 120 is provided with a circuit board, and the power applied from the outside is transmitted to the power supply port 174 through the circuit board and controlled.
  • the heating unit 140 may be made of a heating rod.
  • the heating unit 140 may generate heat to melt the frozen urea aqueous solution.
  • the cooling unit or the power can be supplied to the heating unit 140 extending into the urea tank 110 so that two types can be applied, thereby improving compatibility.
  • stopper 175 can be switched to melt the urea solution can provide a convenience for use.
  • the cooling water is circulated to the heating unit extending into the urea tank by the switching unit provided in the installation unit, or supplies external electricity to the heating unit.
  • the aqueous urea solution can be melted to improve compatibility, and heat exchange efficiency can be improved by a thermal diffusion plate provided in the heating unit.

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

Abstract

L'invention concerne un dispositif de chauffage de solution aqueuse d'urée. La présente invention concerne un dispositif de chauffage de solution aqueuse d'urée comprenant : une partie d'installation installée sur une ouverture d'installation d'un réservoir d'urée; une unité de chauffage s'étendant dans le réservoir d'urée; et un élément de transfert de chaleur disposé dans l'unité de chauffage et diffusant la chaleur générée à partir de l'unité de chauffage.
PCT/KR2015/001559 2015-02-16 2015-02-16 Dispositif de chauffage de solution aqueuse d'urée WO2016133227A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020150023209A KR101864108B1 (ko) 2015-02-16 2015-02-16 우레아 수용액 히팅장치
KR10-2015-0023209 2015-02-16

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Publication Number Publication Date
WO2016133227A1 true WO2016133227A1 (fr) 2016-08-25

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KR102335379B1 (ko) * 2017-07-10 2021-12-06 현대자동차주식회사 히터 확장형 우레아 탱크 모듈 및 우레아 도징 시스템

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US20100162690A1 (en) * 2008-12-30 2010-07-01 Daimler Trucks North America Llc Urea tank with closure member for vehicle exhaust system
KR20100096358A (ko) * 2009-02-24 2010-09-02 주식회사 엑사이엔씨 히터 어셈블리
KR20130014235A (ko) * 2011-07-29 2013-02-07 자동차부품연구원 엔진 배기 정화장치 및 이를 사용한 운송수단
KR20140116609A (ko) * 2013-03-25 2014-10-06 지금강 주식회사 동결방지 기능이 있는 우레아 탱크
KR20140129438A (ko) * 2013-04-29 2014-11-07 현대자동차주식회사 요소수를 저장하는 탱크유닛

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JP2008267682A (ja) * 2007-04-19 2008-11-06 Denso Corp 流体加熱装置ならびにそれを備えた排気後処理装置
KR101437118B1 (ko) * 2012-10-19 2014-09-02 주식회사 테스크 센서지지구가 구비된 디젤차량용 요소수탱크

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100162690A1 (en) * 2008-12-30 2010-07-01 Daimler Trucks North America Llc Urea tank with closure member for vehicle exhaust system
KR20100096358A (ko) * 2009-02-24 2010-09-02 주식회사 엑사이엔씨 히터 어셈블리
KR20130014235A (ko) * 2011-07-29 2013-02-07 자동차부품연구원 엔진 배기 정화장치 및 이를 사용한 운송수단
KR20140116609A (ko) * 2013-03-25 2014-10-06 지금강 주식회사 동결방지 기능이 있는 우레아 탱크
KR20140129438A (ko) * 2013-04-29 2014-11-07 현대자동차주식회사 요소수를 저장하는 탱크유닛

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