WO2018190450A1 - Egr cooler having baffle for supporting gas tubes - Google Patents
Egr cooler having baffle for supporting gas tubes Download PDFInfo
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- WO2018190450A1 WO2018190450A1 PCT/KR2017/004194 KR2017004194W WO2018190450A1 WO 2018190450 A1 WO2018190450 A1 WO 2018190450A1 KR 2017004194 W KR2017004194 W KR 2017004194W WO 2018190450 A1 WO2018190450 A1 WO 2018190450A1
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- WIPO (PCT)
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- gas
- gas tube
- gas tubes
- body cell
- tube
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M26/00—Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
- F02M26/13—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories
- F02M26/22—Arrangement or layout of EGR passages, e.g. in relation to specific engine parts or for incorporation of accessories with coolers in the recirculation passage
- F02M26/29—Constructional details of the coolers, e.g. pipes, plates, ribs, insulation or materials
- F02M26/32—Liquid-cooled heat exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
Definitions
- the present invention relates to an EG cooler for cooling exhaust gas flowing into an exhaust gas recirculation system (EGR: Exhaust gas hereinafter) with cooling water. It relates to an EG cooler having a baffle spaced apart.
- EGR exhaust gas recirculation system
- Exhaust Gas Recirculation is a system in which a part of the exhaust gas is recycled back to the intake system to increase the concentration of CO 2 in the intake air, thereby lowering the temperature of the combustion chamber and thereby reducing the NOx.
- the mechanism of NOx generation in detail, consists of about 79% nitrogen, 21% oxygen and other trace elements.
- nitrogen and oxygen do not react with each other, but at high temperature (above about 1450 ° C), they react with each other to form nitrogen oxides (thermal NOx).
- thermal NOx nitrogen oxides
- diesel engines generate combustion by compression ignition method, and the compression ratio is getting higher due to the development of the material of the cylinder, thereby increasing the temperature of the combustion chamber.
- Increasing the combustion chamber temperature increases the efficiency of the thermodynamic engine, but a large amount of nitrogen oxides are generated due to the high temperature.
- These nitrogen oxides are the main harmful substances that destroy the global environment, causing acid rain, optical smog, respiratory disorders, and the like.
- the principle of NOx reduction by EZR is to lower the maximum temperature of the combustion chamber by recirculating inert gas (steam, carbon dioxide, etc.), second, to prevent the atmosphere of nitrogen oxide formation by lean combustion, and To reduce the ignition delay and lower the local maximum temperature and pressure in the combustion chamber.
- inert gas steam, carbon dioxide, etc.
- EGR the NOx reduction mechanism by EGR has been reported that the reduction of the oxygen concentration is the root cause and the study that the flame temperature decrease is the cause. At this time, no conclusion about which is right is given, but the contribution of NOx reduction in oxygen concentration and flame temperature has recently been reported to be at the same level.
- EZR is equipped with EZR cooler, which reduces NOx without increasing fuel economy and PM due to stricter diesel emission control, and installs a cooler (cooler) using coolant from the engine. It is a device that can be obtained.
- the EZR cooler should be cooled to 700 °C to 200 °C, so it must be heat-resistant and must be compactly designed to be installed inside the car. Should be minimized, and condensation is generated from exhaust gas during heat exchange and sulfuric acid is included in the condensate because it is susceptible to corrosion. Since particulate matter (PM) of the exhaust gas can block the inside of the passage, countermeasure against fouling is required.
- PM particulate matter
- Figure 1 is a vertical cross-sectional view of a conventional EG cooler
- Figure 2 is a perspective view of a gas tube included in a conventional EZ cooler.
- an EZR cooler in general, includes a body cell 10 through which coolant flows in and out, and a plurality of gas tubes 20 installed in the body cell 10 through which exhaust gas flows.
- a plurality of tube protrusions 22 are formed in the gas tube 20, and two neighboring gas tubes 20 are disposed such that the ends of the respective tube protrusions 22 abut each other. Cooling water may flow between the tubes 20.
- the gas tube 20 is produced by welding one end by rolling one metal plate, because a plurality of tube projections must be formed on a wide surface (top and bottom surfaces of FIG. 2) of the gas tube 20.
- the line is located on the narrow side of the gas tube 20 (left side or right side in FIG. 2).
- the high temperature and high pressure exhaust gas flows inside the gas tube 20, and the pressure of the exhaust gas is mainly applied to the wide surface of the gas tube 20, so that the welding line has a narrow surface of the gas tube 20 as described above. If formed in the can cause problems such as the welding line is opened.
- the present invention has been proposed to solve the above problems, it is possible to maintain a constant distance between the gas tubes even if the tube projection is not formed in the gas tube, it is possible to freely select the welding line position of the gas tube
- the purpose of the present invention is to increase the pressure resistance of the gas tube and to provide an EG cooler that can improve the corrosion resistance of the gas tube.
- the body cell to which the coolant flows out A plurality of gas tubes arranged in the thickness direction and mounted in the body cell; A plurality of main bars extending in the stacking direction of the plurality of gas tubes and closely contacted to one side of the plurality of gas tubes in a width direction, and inserted between two neighboring gas tubes extending from the main bar in the width direction of the gas tube; And a baffle configured as an extension bar, wherein the plurality of gas tubes are spaced apart from each other by the thickness of the extension bar.
- the gas tube is formed in a rectangular tube shape having a width wider than a thickness by bending one metal plate and then welding both ends, and a welding line is formed at an upper wall center or a lower wall center.
- the outermost extension bar of the plurality of extension bars is inserted between the outermost gas tube and the inner surface of the body cell, the outermost gas tube and the inner surface of the body cell is the extension Spaced apart by the thickness of the bar.
- the plurality of extension bars are formed to have the same thickness, and the separation distance between two neighboring gas tubes and the outermost gas tube and the body cell are equally set.
- the baffle is coupled to the longitudinal stop of the gas tube.
- the baffles are provided in pairs so as to be coupled to both sides in the width direction of the gas tube.
- the pair of baffles are coupled to the longitudinal interruption of the gas tube so that the extension bar ends face each other, and the two extension bar ends facing each other are spaced apart so that the coolant flows.
- One side wall of the body cell is coupled to the cooling water inlet tube and the cooling water outlet tube, the main bar is in close contact between the point where the cooling water inlet tube is coupled and the cooling water outlet tube of the one side wall of the body cell.
- the EZR cooler according to the present invention can maintain the separation distance between the gas tubes even without forming a tube protrusion in the gas tube, and can freely select the position of the welding line of the gas tube to increase the pressure resistance of the gas tube. It can be increased, and the corrosion resistance of the gas tube can be improved.
- FIG. 1 is a vertical cross-sectional view of a conventional RG cooler.
- FIG. 2 is a perspective view of a gas tube included in a conventional EZC cooler.
- FIG 3 is a perspective view of an EG cooler according to the present invention.
- FIG. 4 is a cross-sectional perspective view of an EZ cooler according to the present invention.
- FIG 5 and 6 are a perspective view and an exploded perspective view showing a coupling structure of the support baffle included in the EG cooler according to the present invention.
- FIG. 7 is a cross-sectional view showing a cooling water flow path of an EG cooler according to the present invention.
- FIG 8 and 9 are a perspective view and an exploded perspective view showing a coupling structure of the support baffle included in the second embodiment of an EG cooler according to the present invention.
- Fig. 10 is a cross-sectional view showing the cooling water flow path of the EZC cooler according to the second embodiment of the present invention.
- Figure 3 is a perspective view of an EG cooler according to the present invention
- Figure 4 is a cross-sectional perspective view of the EG cooler according to the present invention
- Figure 5 and Figure 6 is a coupling structure of the support baffle included in the EG cooler according to the present invention Is a perspective view and an exploded perspective view.
- EZ cooler is a device for heat exchange between the exhaust gas and the cooling water
- the cooling water inlet pipe 110 and the cooling water outlet pipe 120 is provided with a body cell 100 and the cooling water flows in and out
- thickness direction A plurality of gas tubes 200 are arranged in a stacked structure to be mounted in the body cell 100, and wave fins 300 mounted in the gas tube 200 are provided as basic components. Even if a separate tube protrusion is not formed in the 200, that is, even though the surface of the gas tube 200 is formed in a smooth flat shape, two neighboring gas tubes 200 are configured to be spaced apart at regular intervals. There is a big feature.
- the EZR cooler according to the present invention has the biggest feature in that it further includes a baffle 400 which spaces the plurality of gas tubes 200 at regular intervals.
- the baffle 400 extends long in the stacking direction of the plurality of gas tubes 200 (up and down in this embodiment) to be in close contact with one side of the plurality of gas tubes 200 in the width direction (right side in FIG. 5).
- the bar 410 and a plurality of extension bars 420 extending from the main bar 410 in the width direction of the gas tube 200 and inserted between two neighboring gas tubes 200.
- the extension bar 420 inserted between two neighboring gas tubes 200 is in contact with the bottom surface of the gas tube 200 located above and the top surface of the gas tube 200 located below the bar.
- the gas tube 200 and the gas tube 200 positioned below the gas tube 200 are kept spaced apart by the thickness of the extension bar 420.
- the wall surface of the gas tubes 200 is planar. Since the exhaust gas flowing inside the gas tube 200 is concentrated on the curved portion around the tube protrusion, the corresponding portion may be easily corroded.
- the gas tube 200 included in the present invention is a noise generated during the flow of the exhaust gas because the inner surface forms a smooth plane There is an advantage that the vibration is significantly reduced.
- the gas tube 200 applied to the EZC cooler is formed in a rectangular tube shape having a width wider than the thickness thereof, and is mounted in a stacked structure in the thickness direction.
- the gas tube 200 is manufactured by welding both ends after bending one metal plate. do.
- the welding line may be located at any point. That is, the welding line may be formed on the widthwise sidewall of the gas tube 200 (in the present embodiment, the left side wall or the right side wall), and the thickness sidewall of the gas tube 200 (the upper side wall in this embodiment). It may be formed on the lower side wall).
- the side wall of the gas tube 200 is made wider in the thickness direction than the width side wall, the pressure of the exhaust gas flowing into the gas tube 200 is mainly applied in the vertical direction. Therefore, when the welding line of the gas tube 200 is formed on the side wall in the width direction of the gas tube 200, there is an increased risk of the welding line being opened by the pressure of the exhaust gas. Is preferably formed in the center of the upper side wall or the lower side wall.
- the gas tube 200 When the welding line of the gas tube 200 is formed in the center of the upper wall or the lower wall of the gas tube 200 as described above, even if the pressure of the exhaust gas is large, the welding line does not easily open, and accordingly, the gas tube 200 The effect of increasing the structural strength of can be obtained.
- the gas tube 200 generally has a widthwise sidewall (left or right wall) narrower than the thickness sidewall (upper or lower wall) as mentioned above, and thus, the conventional gas tube 200 (20). There may be many difficulties in welding in the widthwise side wall. On the other hand, when welding from the side wall in the thickness direction, such as the gas tube 200 included in the present invention, it is possible to obtain an advantage that the welding operation becomes very easy.
- the heat exchange rate of each gas tube 200 increases and decreases in proportion to the amount of cooling water flowing outside.
- the heat exchange rate of each gas tube 200 to be the same, that is, the flow rate of the coolant contacting the gas tube 200 located in the middle and the gas tube 200 is located on the outermost
- the distance between the adjacent two gas tubes 200 and the outermost gas tube 200 and the body cell 100 are preferably set equally. Do.
- the extension bar 420 located at the outermost side of the plurality of extension bars 420 is inserted between the gas tube 200 located at the outermost side and the inner surface of the body cell 100, and the gas tube 200 It is preferable that the outer surface and the inner surface of the body cell 100 is set to contact. As described above, when the outermost extension bar 420 is in contact with both the gas tube 200 and the body cell 100, the inner surface of the gas tube 200 and the body cell 100 positioned at the outermost side may be Bars are spaced apart by the thickness of the extension bar 420, all the gas tubes 200 can be obtained the effect that the heat exchange rate is the same.
- the plurality of extension bars 420 should be manufactured to have the same thickness.
- FIG. 7 is a cross-sectional view showing a cooling water flow path of an EG cooler according to the present invention.
- the baffle 400 for maintaining a constant distance between the gas tubes 200 is coupled to one side in the longitudinal direction of the gas tube 200, the other side in the longitudinal direction of the gas tube 200 may not be stably fixed and shaken. There is concern. Therefore, the baffle 400 is preferably coupled to the longitudinal interruption of the gas tube 200 so that both sides of the gas tube 200 can be stably balanced and fixed in the longitudinal direction.
- the coolant inlet pipe 110 for supplying the coolant into the body cell 100 and the coolant outlet pipe 120 for discharging the coolant in the body cell to the outside are provided on one side wall of the body cell 100.
- the main bar 410 may be in close contact between a point where the coolant inlet pipe 110 is coupled and a point where the coolant outlet pipe 120 is coupled to one sidewall of the body cell 100.
- the baffle 400 when the baffle 400 is mounted between the coolant inlet pipe 110 and the coolant outlet pipe 120, the coolant introduced into the body cell 100 through the coolant inlet pipe 110 is illustrated in FIG. 7. As shown in FIG. 7, the baffle 400 flows to a portion (lower region in FIG. 7) and is then U-turned to be discharged through the coolant outlet pipe 120.
- the coolant introduced into the body cell 100 is
- the gas tube 200 is in uniform contact with the entire outer surface. Therefore, it is possible to obtain the effect of maximizing the cooling performance of the EG cooler according to the present invention.
- the baffle 400 may be Both sides corresponding to the inner wall of the body cell 100 should be in close contact with the inner wall of the body cell 100.
- FIG 8 and 9 are a perspective view and an exploded perspective view showing a coupling structure of the support baffle 400 included in the second embodiment of the easy cooler according to the present invention
- Figure 10 is a second embodiment of the easy cooler according to the present invention It is sectional drawing which shows the cooling water flow path of an example.
- the baffles 400 may be provided in pairs and may be coupled to both sides of the gas tube 200 in the width direction. As described above, when a pair of baffles 400 are respectively coupled to both sides of the gas tube 200 in the width direction, the plurality of gas tubes 200 have an advantage that the spacing between the one side and the other side in the width direction can be stably fixed. have.
- the pair of baffles 400 are coupled to the longitudinal interruption of the gas tube 200 so that the ends of the extension bars 420 face each other, and the ends of the two extension bars 420 facing each other are coolant. It is desirable to be spaced a certain distance to flow.
- the coolant introduced through the coolant inlet pipe 110 may be coupled to the opposite side of the coolant inlet pipe 110.
- the fluid flows to the bottom end and passes between two extension bars 420 after U-turn.
- Some of the coolant passing between the two extension bars 420 is immediately discharged to the outside through the cooling water outlet, the rest of the coolant passing between the two extension bars 420 flows to the lower side and then again U-turn (U- Bar is discharged through the coolant outlet pipe 120, the coolant introduced into the body cell 100 may be evenly contacted over the entire outer surface of the gas tube (200).
- baffles 400 are provided in pairs as shown in this embodiment, all sides of the baffle 400 corresponding to the inner wall of the body cell 100 closely adhere to the inner wall of the body cell 100. Should be.
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- Exhaust-Gas Circulating Devices (AREA)
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Abstract
An EGR cooler according to the present invention comprises: a body cell into and from which a cooling water flows; a plurality of gas tubes arrayed in a structure stacked in the thickness direction and mounted inside the body cell; and a baffle comprising a main bar, which is elongated in the direction of the stacking of the plurality of gas tubes and coming in close contact with one lateral side in the width direction of the plurality of gas tubes, and a plurality of extension bars which extend from the main bar in the width direction of the gas tubes and are inserted between two neighboring gas tubes. The plurality of gas tubes are positioned as far away from each other as the thickness of the extension bars. The EGR cooler according to the present invention enables the gas tubes to be maintained a fixed distance away from each other without forming a tube protrusion on the gas tubes, enables the position of a welding line of the gas tubes to be freely selected and thus enables an increase in the internal pressure strength of the gas tubes and enhancement in the corrosion resistance of the gas tubes.
Description
본 발명은 배기가스 재순환시스템(EGR:Exhaust Gas Recirculation, 이하 '이지알' 이라 함)으로 유입되는 배기가스를 냉각수로 냉각시키는 이지알 쿨러에 관한 것으로, 더 상세하게는 다수 개의 가스튜브를 일정 간격으로 이격시키는 배플을 구비하는 이지알 쿨러에 관한 것이다.The present invention relates to an EG cooler for cooling exhaust gas flowing into an exhaust gas recirculation system (EGR: Exhaust gas hereinafter) with cooling water. It relates to an EG cooler having a baffle spaced apart.
일반적으로 이지알(EGR: Exhaust Gas Recirculation)은 배기가스의 일부를 다시 흡기계로 재순환시켜 흡입공기 중의 CO2 농도를 증대시켜 연소실의 온도를 저하시키고 이에 의해 NOx를 저감시키는 시스템이다.In general, Exhaust Gas Recirculation (EGR) is a system in which a part of the exhaust gas is recycled back to the intake system to increase the concentration of CO 2 in the intake air, thereby lowering the temperature of the combustion chamber and thereby reducing the NOx.
한편, NOx 발생 메커니즘을 구체적으로 살펴보면, 공기는 약 79%의 질소와 21%의 산소 및 기타 미량의 원소로 구성되어 있다. 상온에서 질소와 산소는 서로 반응을 일으키지 않지만 고온(약 1450℃이상)에서는 서로 반응을 하여 질소산화물(thermal NOx)이 된다. 특히 디젤엔진은 압축착화방식으로 연소를 일으키며 실린더의 재질 발달로 인해 압축비가 점점 더 높아져 연소실의 온도가 높아지고 있다. 연소실 온도의 상승은 열역학적 엔진 효율을 증대시키지만, 고온으로 인한 질소산화물이 다량 발생을 하고 있다. 이러한 질소산화물은 지구환경을 파괴하는 주요 유해물질로써, 산성비, 광학스모그, 호흡기 장애 등을 일으킨다.On the other hand, the mechanism of NOx generation, in detail, consists of about 79% nitrogen, 21% oxygen and other trace elements. At room temperature, nitrogen and oxygen do not react with each other, but at high temperature (above about 1450 ° C), they react with each other to form nitrogen oxides (thermal NOx). In particular, diesel engines generate combustion by compression ignition method, and the compression ratio is getting higher due to the development of the material of the cylinder, thereby increasing the temperature of the combustion chamber. Increasing the combustion chamber temperature increases the efficiency of the thermodynamic engine, but a large amount of nitrogen oxides are generated due to the high temperature. These nitrogen oxides are the main harmful substances that destroy the global environment, causing acid rain, optical smog, respiratory disorders, and the like.
이지알에 의한 NOx 저감 원리는 첫째 불활성가스(수증기, 이산화탄소 등) 재순환에 의해 연소실 최고온도를 낮추는 것이며, 둘째 희박연소에 의해 질소산화물 생성분위기를 방지하는 것이며, 세째 고비열 냉각 불활성 가스 투입으로 인한 점화진각 지연 및 연소실 국부 최고온도 및 압력을 낮추는 것이다. 한편, 디젤기관에서 이지알(EGR)에 의한 NOx 저감 메커니즘은 가솔린과는 달리 산소농도 저감이 근본적인 원인이라는 연구와 이에 반론하여 화염온도 감소가 원인이라는 연구가 보고되었다. 현재로서는 어느 것이 옳은지에 대한 결론은 제시되지 않은 상태이지만, 산소농도와 화염온도의 NOx 저감 기여도는 동일한 수준인 것으로 최근 보고되고 있다.The principle of NOx reduction by EZR is to lower the maximum temperature of the combustion chamber by recirculating inert gas (steam, carbon dioxide, etc.), second, to prevent the atmosphere of nitrogen oxide formation by lean combustion, and To reduce the ignition delay and lower the local maximum temperature and pressure in the combustion chamber. On the other hand, in the diesel engine, unlike the gasoline, the NOx reduction mechanism by EGR has been reported that the reduction of the oxygen concentration is the root cause and the study that the flame temperature decrease is the cause. At this time, no conclusion about which is right is given, but the contribution of NOx reduction in oxygen concentration and flame temperature has recently been reported to be at the same level.
이지알 쿨러가 설치된 이지알은 디젤엔진의 배기규제가 엄격해지면서 연비와 PM의 증가없이 NOx를 저감시키는 방법으로 엔진의 냉각수를 이용한 냉각기(쿨러)를 설치함으로서 비교적 적은 투자로서 NOx저감에 큰 효과를 얻을 수 있는 장치이다.EZR is equipped with EZR cooler, which reduces NOx without increasing fuel economy and PM due to stricter diesel emission control, and installs a cooler (cooler) using coolant from the engine. It is a device that can be obtained.
이 경우에 이지알 쿨러는 700℃ 정도의 배기가스 온도를 150℃~200℃까지 냉각시켜야 하므로 내열성 재질이어야 하며, 자동차 내부에 설치되기 위해 콤팩트하게 설계되어야 하며, 적절한 EGR량을 공급하기 위해 압력강하가 최소화되어야 하며, 열교환 중 배기가스로부터 응축이 발생하며 연료의 황성분 때문에 응축수에 황산이 포함되어 부식을 일으키기 쉬우므로 방식성 재료이어야 하며, 배기가스의 맥동영향으로 기계적 부하가 작용하므로 일정의 기계적 강도가 있어야 하며, 배기가스의 입자상물질(PM) 등이 통로 내부를 막을 수 있어 파울링(fouling)에 대한 대책이 요구된다.In this case, the EZR cooler should be cooled to 700 ℃ to 200 ℃, so it must be heat-resistant and must be compactly designed to be installed inside the car. Should be minimized, and condensation is generated from exhaust gas during heat exchange and sulfuric acid is included in the condensate because it is susceptible to corrosion. Since particulate matter (PM) of the exhaust gas can block the inside of the passage, countermeasure against fouling is required.
이하 첨부된 도면을 참조하여 종래의 이지알 쿨러에 대하여 상세히 설명한다.With reference to the accompanying drawings will be described in detail with respect to the conventional EZR cooler.
도 1은 종래의 이지알 쿨러의 수직단면도이고, 도 2는 종래의 이지알 쿨러에 포함되는 가스튜브의 사시도이다.1 is a vertical cross-sectional view of a conventional EG cooler, Figure 2 is a perspective view of a gas tube included in a conventional EZ cooler.
일반적으로 이지알 쿨러는, 냉각수가 유출입되는 바디셀(10)과, 상기 바디셀(10) 내에 설치되어 배기가스가 흐르는 다수의 가스튜브(20)를 구비한다. 상기 가스튜브(20)에는 다수 개의 튜브돌기(22)가 형성되되, 이웃하는 두 개의 가스튜브(20)는 각각의 튜브돌기(22)의 끝단이 서로 맞닿도록 배치되는바, 이웃하는 두 개의 가스튜브(20) 사이로 냉각수가 흐를 수 있게 된다.In general, an EZR cooler includes a body cell 10 through which coolant flows in and out, and a plurality of gas tubes 20 installed in the body cell 10 through which exhaust gas flows. A plurality of tube protrusions 22 are formed in the gas tube 20, and two neighboring gas tubes 20 are disposed such that the ends of the respective tube protrusions 22 abut each other. Cooling water may flow between the tubes 20.
이때, 상기 가스튜브(20)는 하나의 금속판을 말아 끝단을 용접하는 과정을 통해 제작되는데, 가스튜브(20) 중 넓은면(도 2에서는 상면과 저면)에는 다수 개의 튜브돌기를 형성해야 하므로 용접라인은 가스튜브(20)의 좁은면(도 2에서는 좌측면또는 우측면)에 위치된다. 상기 가스튜브(20) 내부에는 고온 고압의 배기가스가 흐르는데, 상기 배기가스의 압력은 가스튜브(20)의 넓은면에 주로 인가되므로 상기 언급한 바와 같이 용접라인이 가스튜브(20)의 좁은면에 형성되면 상기 용접라인이 벌어지는 등의 문제가 야기될 수 있다.At this time, the gas tube 20 is produced by welding one end by rolling one metal plate, because a plurality of tube projections must be formed on a wide surface (top and bottom surfaces of FIG. 2) of the gas tube 20. The line is located on the narrow side of the gas tube 20 (left side or right side in FIG. 2). The high temperature and high pressure exhaust gas flows inside the gas tube 20, and the pressure of the exhaust gas is mainly applied to the wide surface of the gas tube 20, so that the welding line has a narrow surface of the gas tube 20 as described above. If formed in the can cause problems such as the welding line is opened.
또한, 도 1 및 도 2에 도시된 바와 같이 가스튜브(20)에 다수 개의 튜브돌기(22)가 형성되면 즉, 상기 가스튜브(20)가 매끈한 평면이 아니라 굴곡을 갖는 형상으로 형성되면, 가스튜브(20) 내부를 지나는 배기가스가 튜브돌기(22) 주변의 굴곡진 부위에 집중되어 해당 부위가 쉽게 부식되는바, 가스튜브(20)의 내구성이 떨어지는 문제가 발생된다.1 and 2, when a plurality of tube protrusions 22 are formed in the gas tube 20, that is, when the gas tube 20 is formed in a shape having a curvature rather than a smooth plane, gas The exhaust gas passing through the inside of the tube 20 is concentrated on the bent portion around the tube protrusion 22, so that the corresponding portion is easily corroded, which causes a problem that the durability of the gas tube 20 decreases.
본 발명은 상기와 같은 문제점을 해결하기 위하여 제안된 것으로, 가스튜브에 튜브돌기를 형성하지 아니하더라도 가스튜브 간의 이격거리를 일정하게 유지시킬 수 있고, 가스튜브의 용접라인 위치를 자유롭게 선정할 수 있어 가스튜브의 내압강도를 높일 수 있으며, 가스튜브의 내부식성을 향상시킬 수 있는 이지알 쿨러를 제공하는데 목적이 있다.The present invention has been proposed to solve the above problems, it is possible to maintain a constant distance between the gas tubes even if the tube projection is not formed in the gas tube, it is possible to freely select the welding line position of the gas tube The purpose of the present invention is to increase the pressure resistance of the gas tube and to provide an EG cooler that can improve the corrosion resistance of the gas tube.
상기와 같은 목적을 달성하기 위한 본 발명에 의한 이지알 쿨러는, 냉각수가 유출입되는 바디셀; 두께 방향으로 적층되는 구조로 배열되어 상기 바디셀 내에 장착되는 복수 개의 가스튜브; 상기 복수 개의 가스튜브 적층방향으로 길게 연장되어 상기 복수 개의 가스튜브 폭방향 일측에 밀착되는 메인바와, 상기 메인바로부터 상기 가스튜브의 폭방향으로 연장되어 이웃하는 두 개의 가스튜브 사이에 삽입되는 다수 개의 연장바로 구성되는 배플;을 포함하여, 상기 복수 개의 가스튜브는 상기 연장바의 두께만큼 상호 이격된다.Easy R cooler according to the present invention for achieving the above object, the body cell to which the coolant flows out; A plurality of gas tubes arranged in the thickness direction and mounted in the body cell; A plurality of main bars extending in the stacking direction of the plurality of gas tubes and closely contacted to one side of the plurality of gas tubes in a width direction, and inserted between two neighboring gas tubes extending from the main bar in the width direction of the gas tube; And a baffle configured as an extension bar, wherein the plurality of gas tubes are spaced apart from each other by the thickness of the extension bar.
상기 가스튜브는 하나의 금속판을 벤딩한 후 양단을 용접하는 과정을 통해 두께보다 폭이 넓은 사각관 형상으로 형성되며, 용접라인이 상측벽 중심부 또는 하측벽 중심부에 형성된다.The gas tube is formed in a rectangular tube shape having a width wider than a thickness by bending one metal plate and then welding both ends, and a welding line is formed at an upper wall center or a lower wall center.
상기 다수 개의 연장바 중 가장 바깥쪽에 위치하는 연장바는, 가장 바깥쪽에 위치하는 가스튜브와 상기 바디셀의 내측면 사이로 삽입되어, 가장 바깥쪽에 위치하는 가스튜브와 상기 바디셀의 내측면은 상기 연장바의 두께만큼 이격된다.The outermost extension bar of the plurality of extension bars is inserted between the outermost gas tube and the inner surface of the body cell, the outermost gas tube and the inner surface of the body cell is the extension Spaced apart by the thickness of the bar.
상기 다수 개의 연장바는 동일한 두께로 형성되어, 이웃하는 두 개의 가스튜브 사이의 이격거리와, 가장 바깥쪽에 위치하는 가스튜브와 상기 바디셀 사이의 이격거리가 동일하게 설정된다.The plurality of extension bars are formed to have the same thickness, and the separation distance between two neighboring gas tubes and the outermost gas tube and the body cell are equally set.
상기 배플은, 상기 가스튜브의 길이방향 중단에 결합된다.The baffle is coupled to the longitudinal stop of the gas tube.
상기 배플은, 상기 가스튜브의 폭방향 양측에 각각 결합되도록 쌍으로 구비된다.The baffles are provided in pairs so as to be coupled to both sides in the width direction of the gas tube.
상기 한 쌍의 배플은 상기 가스튜브의 길이방향 중단에 결합되어 연장바 끝단이 서로 마주보도록 배치되며, 서로 마주보는 두 개의 연장바 끝단은 냉각수가 흐를 수 있도록 이격된다.The pair of baffles are coupled to the longitudinal interruption of the gas tube so that the extension bar ends face each other, and the two extension bar ends facing each other are spaced apart so that the coolant flows.
상기 바디셀의 일측 측벽에는 냉각수 유입관과 냉각수 유출관이 결합되고, 상기 메인바는 상기 바디셀의 일측 측벽 중 상기 냉각수 유입관이 결합된 지점과 상기 냉각수 유출관이 결합된 지점 사이에 밀착된다.One side wall of the body cell is coupled to the cooling water inlet tube and the cooling water outlet tube, the main bar is in close contact between the point where the cooling water inlet tube is coupled and the cooling water outlet tube of the one side wall of the body cell. .
본 발명에 의한 이지알 쿨러는, 가스튜브에 튜브돌기를 형성하지 아니하더라도 가스튜브 간의 이격거리를 일정하게 유지시킬 수 있고, 가스튜브의 용접라인 위치를 자유롭게 선정할 수 있어 가스튜브의 내압강도를 높일 수 있으며, 가스튜브의 내부식성을 향상시킬 수 있다는 장점이 있다.The EZR cooler according to the present invention can maintain the separation distance between the gas tubes even without forming a tube protrusion in the gas tube, and can freely select the position of the welding line of the gas tube to increase the pressure resistance of the gas tube. It can be increased, and the corrosion resistance of the gas tube can be improved.
도 1은 종래의 이지알 쿨러의 수직단면도이다.1 is a vertical cross-sectional view of a conventional RG cooler.
도 2는 종래의 이지알 쿨러에 포함되는 가스튜브의 사시도이다.2 is a perspective view of a gas tube included in a conventional EZC cooler.
도 3은 본 발명에 의한 이지알 쿨러의 사시도이다.3 is a perspective view of an EG cooler according to the present invention.
도 4는 본 발명에 의한 이지알 쿨러의 단면사시도이다.4 is a cross-sectional perspective view of an EZ cooler according to the present invention.
도 5 및 도 6은 본 발명에 의한 이지알 쿨러에 포함되는 지지배플의 결합구조를 도시하는 사시도 및 분해사시도이다.5 and 6 are a perspective view and an exploded perspective view showing a coupling structure of the support baffle included in the EG cooler according to the present invention.
도 7은 본 발명에 의한 이지알 쿨러의 냉각수 유동경로를 도시하는 단면도이다.7 is a cross-sectional view showing a cooling water flow path of an EG cooler according to the present invention.
도 8 및 도 9는 본 발명에 의한 이지알 쿨러 제2 실시예에 포함되는 지지배플의 결합구조를 도시하는 사시도 및 분해사시도이다.8 and 9 are a perspective view and an exploded perspective view showing a coupling structure of the support baffle included in the second embodiment of an EG cooler according to the present invention.
도 10은 본 발명에 의한 이지알 쿨러 제2 실시예의 냉각수 유동경로를 도시하는 단면도이다.Fig. 10 is a cross-sectional view showing the cooling water flow path of the EZC cooler according to the second embodiment of the present invention.
이하 첨부된 도면을 참조하여 본 발명에 의한 이지알 쿨러의 실시예를 상세히 설명한다.Hereinafter, an embodiment of an EG cooler according to the present invention will be described in detail with reference to the accompanying drawings.
도 3은 본 발명에 의한 이지알 쿨러의 사시도이고, 도 4는 본 발명에 의한 이지알 쿨러의 단면사시도이며, 도 5 및 도 6은 본 발명에 의한 이지알 쿨러에 포함되는 지지배플의 결합구조를 도시하는 사시도 및 분해사시도이다.Figure 3 is a perspective view of an EG cooler according to the present invention, Figure 4 is a cross-sectional perspective view of the EG cooler according to the present invention, Figure 5 and Figure 6 is a coupling structure of the support baffle included in the EG cooler according to the present invention Is a perspective view and an exploded perspective view.
본 발명에 의한 이지알 쿨러는 배기가스와 냉각수를 열교환시키기 위한 장치로서, 냉각수 유입관(110) 및 냉각수 유출관(120)을 구비하여 내부로 냉각수가 유출입되는 바디셀(100)과, 두께 방향으로 적층되는 구조로 배열되어 상기 바디셀(100) 내에 장착되는 복수 개의 가스튜브(200)와, 상기 가스튜브(200) 내에 장착되는 웨이브핀(300)을 기본 구성요소로 구비하되, 가스튜브(200)에 별도의 튜브돌기가 형성되지 아니하더라도 즉, 상기 가스튜브(200)의 표면이 매끈한 평면 형상으로 형성되더라도 이웃하는 두 개의 가스튜브(200)가 일정 간격 이격되도록 구성된다는 점에 구성상의 가장 큰 특징이 있다.EZ cooler according to the present invention is a device for heat exchange between the exhaust gas and the cooling water, the cooling water inlet pipe 110 and the cooling water outlet pipe 120 is provided with a body cell 100 and the cooling water flows in and out, thickness direction A plurality of gas tubes 200 are arranged in a stacked structure to be mounted in the body cell 100, and wave fins 300 mounted in the gas tube 200 are provided as basic components. Even if a separate tube protrusion is not formed in the 200, that is, even though the surface of the gas tube 200 is formed in a smooth flat shape, two neighboring gas tubes 200 are configured to be spaced apart at regular intervals. There is a big feature.
즉, 본 발명에 의한 이지알 쿨러는, 다수 개의 가스튜브(200)들을 일정한 간격으로 이격시키는 배플(400)을 추가로 구비한다는 점에 구성상의 가장 큰 특징이 있다. 상기 배플(400)은, 상기 복수 개의 가스튜브(200) 적층방향(본 실시예에서는 상하방향)으로 길게 연장되어 상기 복수 개의 가스튜브(200) 폭방향 일측(도 5에서는 우측)에 밀착되는 메인바(410)와, 상기 메인바(410)로부터 상기 가스튜브(200)의 폭방향으로 연장되어 이웃하는 두 개의 가스튜브(200) 사이에 삽입되는 다수 개의 연장바(420)로 구성된다.That is, the EZR cooler according to the present invention has the biggest feature in that it further includes a baffle 400 which spaces the plurality of gas tubes 200 at regular intervals. The baffle 400 extends long in the stacking direction of the plurality of gas tubes 200 (up and down in this embodiment) to be in close contact with one side of the plurality of gas tubes 200 in the width direction (right side in FIG. 5). The bar 410 and a plurality of extension bars 420 extending from the main bar 410 in the width direction of the gas tube 200 and inserted between two neighboring gas tubes 200.
이웃하는 두 개의 가스튜브(200) 사이로 삽입되는 연장바(420)는, 상측에 위치하는 가스튜브(200)의 저면과 하측에 위치하는 가스튜브(200)의 상면에 접촉되는바, 상측에 위치하는 가스튜브(200)와 하측에 위치하는 가스튜브(200)는 연장바(420)의 두께만큼 이격된 상태를 유지하게 된다.The extension bar 420 inserted between two neighboring gas tubes 200 is in contact with the bottom surface of the gas tube 200 located above and the top surface of the gas tube 200 located below the bar. The gas tube 200 and the gas tube 200 positioned below the gas tube 200 are kept spaced apart by the thickness of the extension bar 420.
상기 언급한 바와 같이 다수 개의 가스튜브(200)가 배플(400)에 의해 이격되도록 구성되면, 상기 가스튜브(200)에 튜브돌기를 형성할 필요가 없으므로 즉, 가스튜브(200)의 벽면을 평면으로 제작할 수 있으므로, 가스튜브(200) 내부를 흐르는 배기가스가 튜브돌기 주변의 굴곡진 부위에 집중되어 해당 부위가 쉽게 부식되는 현상을 방지할 수 있게 된다. 또한, 가스튜브(200)에 굴곡이 형성되면 배기가스 유동 시 소음 및 진동이 발생되지만, 본 발명에 포함되는 가스튜브(200)는 내측면이 매끈한 평면을 이루므로 배기가스 유동 시 발생되는 소음이나 진동이 현저히 줄어들게 된다는 장점이 있다.As mentioned above, when the plurality of gas tubes 200 are configured to be spaced apart by the baffle 400, there is no need to form tube protrusions on the gas tubes 200, that is, the wall surface of the gas tubes 200 is planar. Since the exhaust gas flowing inside the gas tube 200 is concentrated on the curved portion around the tube protrusion, the corresponding portion may be easily corroded. In addition, if the bending is formed in the gas tube 200, noise and vibration is generated during the flow of the exhaust gas, the gas tube 200 included in the present invention is a noise generated during the flow of the exhaust gas because the inner surface forms a smooth plane There is an advantage that the vibration is significantly reduced.
한편, 이지알 쿨러에 적용되는 가스튜브(200)는 두께보다 폭이 넓은 사각관 형상으로 형성되어 두께방향으로 적층되는 구조로 장착되는데, 하나의 금속판을 벤딩한 후 양단을 용접하는 과정을 통해 제작된다. 이때 본 발명에 포함되는 가스튜브(200)의 표면에는 튜브돌기가 구비될 필요가 없으므로, 용접라인이 어느 지점에도 위치될 수 있다. 즉, 상기 용접라인은, 가스튜브(200)의 폭방향 측벽(본 실시예에서는 좌측벽이나 우측벽)에 형성될 수도 있고, 가스튜브(200)의 두께방향 측벽(본 실시예에서는 상측벽이나 하측벽)에 형성될 수도 있다.Meanwhile, the gas tube 200 applied to the EZC cooler is formed in a rectangular tube shape having a width wider than the thickness thereof, and is mounted in a stacked structure in the thickness direction. The gas tube 200 is manufactured by welding both ends after bending one metal plate. do. At this time, since the tube projection need not be provided on the surface of the gas tube 200 included in the present invention, the welding line may be located at any point. That is, the welding line may be formed on the widthwise sidewall of the gas tube 200 (in the present embodiment, the left side wall or the right side wall), and the thickness sidewall of the gas tube 200 (the upper side wall in this embodiment). It may be formed on the lower side wall).
상기 가스튜브(200)는 폭방향 측벽보다 두께방향의 측벽이 넓게 제작되므로, 내부로 유입되는 배기가스의 압력이 상하 방향으로 주로 인가된다. 따라서 가스튜브(200)의 용접라인이 가스튜브(200)의 폭방향 측벽에 형성되면 배기가스의 압력에 의해 용접라인이 벌어질 우려가 증가하는바, 상기 용접라인은 두께방향 측벽(더 명확하게는 상측벽 또는 하측벽)의 중심부에 형성됨이 바람직하다.Since the side wall of the gas tube 200 is made wider in the thickness direction than the width side wall, the pressure of the exhaust gas flowing into the gas tube 200 is mainly applied in the vertical direction. Therefore, when the welding line of the gas tube 200 is formed on the side wall in the width direction of the gas tube 200, there is an increased risk of the welding line being opened by the pressure of the exhaust gas. Is preferably formed in the center of the upper side wall or the lower side wall.
이와 같이 가스튜브(200)의 용접라인이 가스튜브(200)의 상측벽이나 하측벽의 중심부에 형성되면, 배기가스의 압력이 크더라도 용접라인이 쉽게 벌어지지 아니하고, 이에 따라 가스튜브(200)의 구조적 강도가 증가하는 효과를 얻을 수 있다. 또한, 일반적으로 가스튜브(200)는 상기 언급한 바와 같이 두께방향 측벽(상측벽 또는 하측벽)보다 폭방향 측벽(좌측벽 또는 우측벽)이 좁게 형성되므로, 종래의 가스튜브(200)(20)와 같이 폭방향 측벽에서 용접을 하는데 많은 어려움이 있을 수 있다. 이에 비해 본 발명에 포함되는 가스튜브(200)와 같이 두께방향 측벽에서 용접을 하는 경우 용접 작업이 매우 용이해진다는 장점도 얻을 수 있다.When the welding line of the gas tube 200 is formed in the center of the upper wall or the lower wall of the gas tube 200 as described above, even if the pressure of the exhaust gas is large, the welding line does not easily open, and accordingly, the gas tube 200 The effect of increasing the structural strength of can be obtained. In addition, the gas tube 200 generally has a widthwise sidewall (left or right wall) narrower than the thickness sidewall (upper or lower wall) as mentioned above, and thus, the conventional gas tube 200 (20). There may be many difficulties in welding in the widthwise side wall. On the other hand, when welding from the side wall in the thickness direction, such as the gas tube 200 included in the present invention, it is possible to obtain an advantage that the welding operation becomes very easy.
가스튜브(200)의 내부를 흐르는 배기가스는 가스튜브(200)의 외부를 흐르는 냉각수와 열교환을 하므로, 각 가스튜브(200)들의 열교환율은 외부를 흐르는 냉각수량에 비례하여 증감하게 된다. 본 발명에 의한 이지알 쿨러는, 각 가스튜브(200)들의 열교환율이 동일해질 수 있도록 즉, 가운데 위치하는 가스튜브(200)와 접촉되는 냉각수 유량과 가장 바깥쪽에 위치하는 가스튜브(200)와 접촉되는 냉각수 유량이 동일하게 유지될 수 있도록, 이웃하는 두 개의 가스튜브(200) 이격거리와 가장 바깥쪽에 위치하는 가스튜브(200)와 바디셀(100) 간의 이격거리가 동일하게 설정됨이 바람직하다.Since the exhaust gas flowing inside the gas tube 200 exchanges heat with the cooling water flowing outside the gas tube 200, the heat exchange rate of each gas tube 200 increases and decreases in proportion to the amount of cooling water flowing outside. EZ cooler according to the present invention, the heat exchange rate of each gas tube 200 to be the same, that is, the flow rate of the coolant contacting the gas tube 200 located in the middle and the gas tube 200 is located on the outermost In order to maintain the same flow rate of the cooling water, the distance between the adjacent two gas tubes 200 and the outermost gas tube 200 and the body cell 100 are preferably set equally. Do.
따라서 상기 다수 개의 연장바(420) 중 가장 바깥쪽에 위치하는 연장바(420)는, 가장 바깥쪽에 위치하는 가스튜브(200)와 상기 바디셀(100)의 내측면 사이로 삽입되되, 가스튜브(200)의 외측면과 바디셀(100)의 내측면에 접촉되도록 설정됨이 바람직하다. 이와 같이 가장 바깥쪽에 위치하는 연장바(420)가 가스튜브(200)와 바디셀(100)에 모두 접촉되면, 가장 바깥쪽에 위치하는 가스튜브(200)와 상기 바디셀(100)의 내측면은 상기 연장바(420)의 두께만큼 이격되는바, 모든 가스튜브(200)는 열교환율이 동일해진다는 효과를 얻을 수 있다.Therefore, the extension bar 420 located at the outermost side of the plurality of extension bars 420 is inserted between the gas tube 200 located at the outermost side and the inner surface of the body cell 100, and the gas tube 200 It is preferable that the outer surface and the inner surface of the body cell 100 is set to contact. As described above, when the outermost extension bar 420 is in contact with both the gas tube 200 and the body cell 100, the inner surface of the gas tube 200 and the body cell 100 positioned at the outermost side may be Bars are spaced apart by the thickness of the extension bar 420, all the gas tubes 200 can be obtained the effect that the heat exchange rate is the same.
물론, 상기 언급한 바와 같이 이웃하는 두 개의 가스튜브(200) 사이의 이격거리와, 가장 바깥쪽에 위치하는 가스튜브(200)와 상기 바디셀(100) 사이의 이격거리가 동일하게 설정되기 위해서는, 상기 다수 개의 연장바(420)는 동일한 두께를 갖도록 제작되어야 할 것이다.Of course, as mentioned above, in order for the separation distance between two neighboring gas tubes 200 to be equally set and the separation distance between the outermost gas tube 200 and the body cell 100, The plurality of extension bars 420 should be manufactured to have the same thickness.
도 7은 본 발명에 의한 이지알 쿨러의 냉각수 유동경로를 도시하는 단면도이다.7 is a cross-sectional view showing a cooling water flow path of an EG cooler according to the present invention.
가스튜브(200) 간의 이격거리를 일정하기 유지시키기 위한 배플(400)이 가스튜브(200)의 길이방향 일측에 치우쳐 결합되면, 상기 가스튜브(200)의 길이방향 타측이 안정적으로 고정되지 못하고 흔들릴 우려가 있다. 따라서 상기 배플(400)은, 가스튜브(200)의 길이방향 양측이 균형을 이루며 안정적으로 고정될 수 있도록 상기 가스튜브(200)의 길이방향 중단에 결합됨이 바람직하다.When the baffle 400 for maintaining a constant distance between the gas tubes 200 is coupled to one side in the longitudinal direction of the gas tube 200, the other side in the longitudinal direction of the gas tube 200 may not be stably fixed and shaken. There is concern. Therefore, the baffle 400 is preferably coupled to the longitudinal interruption of the gas tube 200 so that both sides of the gas tube 200 can be stably balanced and fixed in the longitudinal direction.
이때, 바디셀(100) 내측으로 냉각수를 공급하기 위한 냉각수 유입관(110)과 바디셀(100) 내의 냉각수를 외부로 배출시키기 위한 냉각수 유출관(120)은 바디셀(100)의 일측 측벽에 결합되는데, 상기 메인바(410)는 상기 바디셀(100)의 일측 측벽 중 상기 냉각수 유입관(110)이 결합된 지점과 상기 냉각수 유출관(120)이 결합된 지점 사이에 밀착될 수 있다.At this time, the coolant inlet pipe 110 for supplying the coolant into the body cell 100 and the coolant outlet pipe 120 for discharging the coolant in the body cell to the outside are provided on one side wall of the body cell 100. The main bar 410 may be in close contact between a point where the coolant inlet pipe 110 is coupled and a point where the coolant outlet pipe 120 is coupled to one sidewall of the body cell 100.
이와 같이 냉각수 유입관(110)과 냉각수 유출관(120) 사이에 배플(400)이 장착되면, 냉각수 유입관(110)을 통해 바디셀(100) 내부로 유입된 냉각수는 도 7에 도시된 바와 같이 배플(400)이 없는 부위(도 7에서는 하측영역)까지 유동하였다가 유턴(U-turn)하여 냉각수 유출관(120)을 통해 배출되는바, 상기 바디셀(100) 내부로 유입된 냉각수는 가스튜브(200)의 외측면 전체에 걸쳐 고르게 접촉하게 된다. 따라서 본 발명에 의한 이지알 쿨러의 냉각성능이 극대화되는 효과를 얻을 수 있다.As such, when the baffle 400 is mounted between the coolant inlet pipe 110 and the coolant outlet pipe 120, the coolant introduced into the body cell 100 through the coolant inlet pipe 110 is illustrated in FIG. 7. As shown in FIG. 7, the baffle 400 flows to a portion (lower region in FIG. 7) and is then U-turned to be discharged through the coolant outlet pipe 120. The coolant introduced into the body cell 100 is The gas tube 200 is in uniform contact with the entire outer surface. Therefore, it is possible to obtain the effect of maximizing the cooling performance of the EG cooler according to the present invention.
이때, 상기 배플(400)이 바디셀(100)의 내벽에 완전히 밀착되지 못하면, 냉각수 유입구를 통해 유입된 냉각수가 배플(400)을 통과하여 곧바로 냉각수 유출구로 흐를 수 있으므로, 상기 배플(400) 중 바디셀(100)의 내벽과 대응되는 측은 모두 바디셀(100)의 내벽에 밀착되어야 할 것이다.In this case, if the baffle 400 is not completely in contact with the inner wall of the body cell 100, since the coolant introduced through the coolant inlet may flow directly through the baffle 400 to the coolant outlet, the baffle 400 may be Both sides corresponding to the inner wall of the body cell 100 should be in close contact with the inner wall of the body cell 100.
도 8 및 도 9는 본 발명에 의한 이지알 쿨러 제2 실시예에 포함되는 지지배플(400)의 결합구조를 도시하는 사시도 및 분해사시도이고, 도 10은 본 발명에 의한 이지알 쿨러 제2 실시예의 냉각수 유동경로를 도시하는 단면도이다.8 and 9 are a perspective view and an exploded perspective view showing a coupling structure of the support baffle 400 included in the second embodiment of the easy cooler according to the present invention, Figure 10 is a second embodiment of the easy cooler according to the present invention It is sectional drawing which shows the cooling water flow path of an example.
도 5 내지 도 7에 도시된 실시예와 같이 하나의 배플(400)이 가스튜브(200) 간 이격거리를 유지하도록 구성되면 즉, 배플(400)이 가스튜브(200)의 폭방향 일측에만 결합되면, 상기 가스튜브(200)의 폭방향 타측은 안정적으로 고정되지 못하고 흔들릴 우려가 있다.5 to 7 when one baffle 400 is configured to maintain the separation distance between the gas tubes 200, that is, the baffle 400 is coupled to only one side in the width direction of the gas tube 200 In this case, the other side in the width direction of the gas tube 200 may not be stably fixed and may shake.
따라서 상기 배플(400)은 쌍으로 구비되어, 가스튜브(200)의 폭방향 양측에 각각 결합될 수 있다. 이와 같이 한 쌍의 배플(400)이 가스튜브(200)의 폭방향 양측에 각각 결합되면, 상기 다수 개의 가스튜브(200)는 폭방향 일측과 타측 모두 이격간격이 안정적으로 고정될 수 있다는 장점이 있다.Accordingly, the baffles 400 may be provided in pairs and may be coupled to both sides of the gas tube 200 in the width direction. As described above, when a pair of baffles 400 are respectively coupled to both sides of the gas tube 200 in the width direction, the plurality of gas tubes 200 have an advantage that the spacing between the one side and the other side in the width direction can be stably fixed. have.
이때, 한 쌍의 배플(400)의 끝단이 서로 맞닿으면 즉, 각 배플(400)에 포함되는 연장바(420)의 끝단이 서로 맞닿으면, 바디셀(100)의 내부공간이 한 쌍의 배플(400)에 의해 격리되는바, 냉각수 유입관(110)을 통해 유입된 냉각수가 냉각수 유출관(120)으로 흐르지 못하게 된다는 문제가 발생된다. 따라서 상기 한 쌍의 배플(400)은 상기 가스튜브(200)의 길이방향 중단에 결합되어 연장바(420) 끝단이 서로 마주보도록 배치되되, 서로 마주보는 두 개의 연장바(420) 끝단은 냉각수가 흐를 수 있도록 일정 거리 이격됨이 바람직하다.At this time, when the ends of the pair of baffles 400 abut each other, that is, when the ends of the extension bar 420 included in each baffle 400 abut each other, the inner space of the body cell 100 is a pair It is isolated by the baffle 400 of the bar, there is a problem that the cooling water introduced through the coolant inlet pipe 110 does not flow to the coolant outlet pipe 120. Therefore, the pair of baffles 400 are coupled to the longitudinal interruption of the gas tube 200 so that the ends of the extension bars 420 face each other, and the ends of the two extension bars 420 facing each other are coolant. It is desirable to be spaced a certain distance to flow.
이와 같이 서로 마주 보는 두 개의 연장바(420) 사이로 냉각수가 흐를 수 있으면, 도 10에 도시된 바와 같이 냉각수 유입관(110)을 통해 유입된 냉각수는 냉각수 유입관(110)이 결합된 반대측(본 실시예에서는 하측) 끝까지 유동하였다가 유턴(U-turn)한 후 두 개의 연장바(420) 사이를 통과하게 된다. 두 개의 연장바(420) 사이를 통과한 냉각수 중 일부는 곧바로 냉각수 유출구를 통해 외부로 배출되고, 두 개의 연장바(420) 사이를 통과한 냉각수 중 나머지는 하측으로 유동하였다가 다시 유턴(U-turn)하여 냉각수 유출관(120)을 통해 배출되는바, 바디셀(100) 내로 유입된 냉각수는 가스튜브(200)의 외측면 전체에 걸쳐 고르게 접촉될 수 있다.As such, when the coolant may flow between two extension bars 420 facing each other, as shown in FIG. 10, the coolant introduced through the coolant inlet pipe 110 may be coupled to the opposite side of the coolant inlet pipe 110. In the exemplary embodiment, the fluid flows to the bottom end and passes between two extension bars 420 after U-turn. Some of the coolant passing between the two extension bars 420 is immediately discharged to the outside through the cooling water outlet, the rest of the coolant passing between the two extension bars 420 flows to the lower side and then again U-turn (U- Bar is discharged through the coolant outlet pipe 120, the coolant introduced into the body cell 100 may be evenly contacted over the entire outer surface of the gas tube (200).
한편, 본 실시예에 도시된 바와 같이 배플(400)이 쌍으로 구비되는 경우에 있어서도, 상기 배플(400) 중 바디셀(100)의 내벽과 대응되는 측은 모두 바디셀(100)의 내벽에 밀착되어야 할 것이다.On the other hand, even when the baffles 400 are provided in pairs as shown in this embodiment, all sides of the baffle 400 corresponding to the inner wall of the body cell 100 closely adhere to the inner wall of the body cell 100. Should be.
이상, 본 발명을 바람직한 실시예를 사용하여 상세히 설명하였으나, 본 발명의 범위는 특정 실시예에 한정되는 것은 아니며, 첨부된 특허청구범위에 의하여 해석되어야 할 것이다. 또한, 이 기술분야에서 통상의 지식을 습득한 자라면, 본 발명의 범위에서 벗어나지 않으면서도 많은 수정과 변형이 가능함을 이해하여야 할 것이다. As mentioned above, although this invention was demonstrated in detail using the preferable Example, the scope of the present invention is not limited to a specific Example and should be interpreted by the attached Claim. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.
Claims (8)
- 냉각수가 유출입되는 바디셀;A body cell into which coolant flows out;두께 방향으로 적층되는 구조로 배열되어 상기 바디셀 내에 장착되는 복수 개의 가스튜브;A plurality of gas tubes arranged in the thickness direction and mounted in the body cell;상기 복수 개의 가스튜브 적층방향으로 길게 연장되어 상기 복수 개의 가스튜브 폭방향 일측에 밀착되는 메인바와, 상기 메인바로부터 상기 가스튜브의 폭방향으로 연장되어 이웃하는 두 개의 가스튜브 사이에 삽입되는 다수 개의 연장바로 구성되는 배플;A plurality of main bars extending in the stacking direction of the plurality of gas tubes and closely contacted to one side of the plurality of gas tubes in a width direction, and inserted between two neighboring gas tubes extending from the main bar in the width direction of the gas tube; A baffle composed of an extension bar;을 포함하여,Including,상기 복수 개의 가스튜브는 상기 연장바의 두께만큼 상호 이격되는 것을 특징으로 하는 이지알 쿨러.And the plurality of gas tubes are spaced apart from each other by the thickness of the extension bar.
- 청구항 1에 있어서,The method according to claim 1,상기 가스튜브는,The gas tube,하나의 금속판을 벤딩한 후 양단을 용접하는 과정을 통해 두께보다 폭이 넓은 사각관 형상으로 형성되되, 용접라인이 상측벽 중심부 또는 하측벽 중심부에 형성되는 것을 특징으로 하는 이지알 쿨러.EZ cooler, characterized in that the bent one of the metal plate is formed in a square tube shape wider than the thickness through the process of welding both ends, the welding line is formed in the upper wall center or the lower wall center.
- 청구항 1에 있어서,The method according to claim 1,상기 다수 개의 연장바 중 가장 바깥쪽에 위치하는 연장바는, 가장 바깥쪽에 위치하는 가스튜브와 상기 바디셀의 내측면 사이로 삽입되어,The outermost extension bar of the plurality of extension bars is inserted between the outermost gas tube and the inner surface of the body cell,가장 바깥쪽에 위치하는 가스튜브와 상기 바디셀의 내측면은 상기 연장바의 두께만큼 이격되는 것을 특징으로 하는 이지알 쿨러.The outermost gas tube and the inner surface of the body cell is an easy cooler, characterized in that spaced apart by the thickness of the extension bar.
- 청구항 3에 있어서,The method according to claim 3,상기 다수 개의 연장바는 동일한 두께로 형성되어,The plurality of extension bars are formed to the same thickness,이웃하는 두 개의 가스튜브 사이의 이격거리와, 가장 바깥쪽에 위치하는 가스튜브와 상기 바디셀 사이의 이격거리가 동일한 것을 특징으로 하는 이지알 쿨러.The separation distance between two neighboring gas tubes and the outermost gas tube and the body cell is characterized in that the same distance cooler.
- 청구항 1에 있어서,The method according to claim 1,상기 배플은, 상기 가스튜브의 길이방향 중단에 결합되는 것을 특징으로 하는 이지알 쿨러.And the baffle is coupled to a longitudinal stop of the gas tube.
- 청구항 1에 있어서,The method according to claim 1,상기 배플은, 상기 가스튜브의 폭방향 양측에 각각 결합되도록 쌍으로 구비되는 것을 특징으로 하는 이지알 쿨러.The baffle is an EG cooler, characterized in that provided in pairs so as to be respectively coupled to both sides in the width direction of the gas tube.
- 청구항 6에 있어서,The method according to claim 6,상기 한 쌍의 배플은 상기 가스튜브의 길이방향 중단에 결합되어 연장바 끝단이 서로 마주보도록 배치되며,The pair of baffles are coupled to the longitudinal interruption of the gas tube and arranged so that the ends of the extension bars face each other,서로 마주보는 두 개의 연장바 끝단은 냉각수가 흐를 수 있도록 이격되는 것을 특징으로 하는 이지알 쿨러.The ends of the two extension bars facing each other are separated so that the coolant flows.
- 청구항 1에 있어서,The method according to claim 1,상기 바디셀의 일측 측벽에는 냉각수 유입관과 냉각수 유출관이 결합되고,Cooling water inlet pipe and the cooling water outlet pipe is coupled to one side wall of the body cell,상기 메인바는 상기 바디셀의 일측 측벽 중 상기 냉각수 유입관이 결합된 지점과 상기 냉각수 유출관이 결합된 지점 사이에 밀착되는 것을 특징으로 하는 이지알 쿨러.The main bar is an EG cooler, characterized in that the close contact between the point of the cooling water inlet pipe is coupled to the point of the cooling water inlet pipe of the side wall of the body cell.
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KR101977894B1 (en) | 2019-05-14 |
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