WO2024128451A1 - Échangeur de chaleur à virage en x - Google Patents

Échangeur de chaleur à virage en x Download PDF

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Publication number
WO2024128451A1
WO2024128451A1 PCT/KR2023/010403 KR2023010403W WO2024128451A1 WO 2024128451 A1 WO2024128451 A1 WO 2024128451A1 KR 2023010403 W KR2023010403 W KR 2023010403W WO 2024128451 A1 WO2024128451 A1 WO 2024128451A1
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WO
WIPO (PCT)
Prior art keywords
row
tank
space
heat exchanger
baffle
Prior art date
Application number
PCT/KR2023/010403
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English (en)
Korean (ko)
Inventor
윤한길
이상옥
이양우
Original Assignee
한온시스템 주식회사
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Application filed by 한온시스템 주식회사 filed Critical 한온시스템 주식회사
Publication of WO2024128451A1 publication Critical patent/WO2024128451A1/fr

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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
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • 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
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • 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
    • F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates

Definitions

  • the present invention relates to a heat exchanger, and more specifically, to a heat exchanger in which four passes are formed so that the paths of the heat exchange medium cross each other in one tank.
  • heat exchangers such as radiators, intercoolers, evaporators, and condensers to cool each part of the vehicle such as the engine or to control the air temperature inside the vehicle.
  • Such heat exchangers generally have a heat exchange medium distributed inside them, and cooling or heat dissipation is achieved by heat exchange between the heat exchange medium inside the heat exchanger and the air outside the heat exchanger.
  • This heat exchanger is generally formed in a form that includes a plurality of tubes arranged in parallel with each other through which refrigerant flows, and a pair of header tanks provided at both ends of the tube row composed of the tubes.
  • the path of the heat exchange medium in the heat exchanger varies depending on the purpose or location of the heat exchanger, but usually the tubes are formed in one row or arranged in two rows in the front and back directions.
  • the refrigerant path can be formed in various ways, for example, two passes where the first and second rows each form one pass, or one of the first or second rows is divided to form two passes. There may be 3 passes where the first row and the second row each form 2 passes, etc.
  • FIG. 1 briefly shows the heat exchange medium progress path of a typical 4-pass, 2-row heat exchanger. Based on what is drawn in the drawing, the heat exchange medium flows into the first row and passes through all of the first core, then moves to the second row, passes through all of the second core, and is then discharged. Accordingly, the heat exchange medium proceeds in the order 1 - 2 - 3 - 4 in FIG. 1. In other words, the front core and rear core each have two passes, forming a total of four passes.
  • Patent Document 1 Japanese Patent Publication No. 2017-003140 (“Refrigerant Evaporator”, 2017.01.05.)
  • the present invention was made to solve the problems of the prior art as described above, and the purpose of the present invention is to heat the header tank by using a special type of baffle and a communication hole arranged accordingly in a 4-pass 2-row heat exchanger.
  • the aim is to provide a heat exchanger that can realize X-turn, or cross-progress, of the heat exchange medium.
  • the purpose of the present invention is to provide a heat exchanger that maintains the configuration of a conventional two-row heat exchanger almost as is but realizes an
  • the heat exchanger 100 of the present invention for achieving the above-described object includes a first tank 110 in which a fluid flow space is formed; a second tank 120 that has a fluid flow space formed therein and is arranged side by side at a certain distance below the first tank; and a plurality of tubes 150 arranged in two rows, with both ends fixed to the first tank 110 and the second tank 120 to form a flow path for the heat exchange medium. is divided into a first row of first tanks 111 and a second row of first tanks 112 by a first partition wall 115, and the second tank 120 is divided into a second row by a second partition wall 125.
  • first row of tanks (121) and a second row of second tanks (122) It is divided into a first row of tanks (121) and a second row of second tanks (122), the plurality of tubes are arranged into a first row of tubes and a second row of tubes, and the fluid in the first row of second tanks (121)
  • the flow space is separated into a 1-1 space and a 1-2 space
  • the fluid flow space of the second row of the second tank 122 is formed to be separated into a 2-1 space and a 2-2 space
  • the heat exchange medium may cross from the 1-1 space to the 2-2 space and from the 1-2 space to the 2-1 space.
  • a first communication hole 123 and a second communication hole 124 are formed on the second partition 125 and spaced apart in the longitudinal direction;
  • a cross baffle 130 that separates the fluid flow space of the first row of second tanks 121 or the second row of second tanks 122 into two spaces in the longitudinal direction;
  • a half baffle 140 that separates the fluid flow space of the second tank 120 in a row other than the row where the cross baffle 130 is arranged into two spaces in the longitudinal direction; may include.
  • first communication hole 123 and the second communication hole 124 are spaced apart in the longitudinal direction, and may also be spaced apart in the height direction.
  • an inlet through which the heat exchange medium flows is formed in the first row 111 of the first tank,
  • An outlet through which the heat exchange medium is discharged may be formed in the second row 112 of the first tank.
  • the heat exchange medium is connected to the inlet, the first row 111 of the first tank, the first row of tubes 150, the 1-1 space of the first row 121 of the second tank, and the second row of the second tank.
  • a first progress path (1-2) that sequentially passes through the 2-2 space of the row 122, the second row of tubes 150, the second row of first tanks 112, and the outlet, and The inlet, the first row of the first tank (111), the first row of tubes (150), the 1-2 space of the first row of the second tank (121), and the second row of the second tank (122) Any one selected from the second progress path (a-b) that sequentially passes through the 2-1 space, the second row of tubes 150, the second row of the first tank 112, and the outlet. It can be distributed along the progress path of .
  • the half baffle 140 may be disposed at a position between the first communication hole 123 and the second communication hole 124 spaced apart in the longitudinal direction.
  • the cross baffle 130 is disposed at a different height from the first baffle part 131, which separates the flow of the heat exchange medium in the longitudinal direction, and separates the flow of the heat exchange medium in the longitudinal direction.
  • the second baffle part 132 is separated, and the first and second baffle parts 131 and 132 are formed at both ends to connect the first and second baffle parts 131 and 132 to each other, and the first communication It may include a connection portion 133 disposed between the hole 123 and the second communication hole 124 spaced apart in the height direction to separate the flow of the heat exchange medium in the height direction.
  • the first and second communication holes 123 and 134 may be formed between the first and second baffle parts 131 and 132.
  • the cross baffle 130 includes the first baffle portion 131 and the second baffle portion along the direction in which the first communication hole 123 and the second communication hole 124 are spaced apart in the height direction. (132) may extend upward or downward.
  • the cross baffle 130 includes a locking portion 134 that hangs on the second partition 125, and the locking portion 134 hooks the first baffle portion 131 on an end of the second partition. ) or it may be formed in one of the second baffle parts 132.
  • each of the first communication hole 123 and the second communication hole 124 is formed to extend a length corresponding to the area where one to three tubes 150 are formed. You can.
  • the heat exchanger 100 is such that the distance between the first communication hole 123 and the end of the second tank 120 adjacent thereto is the distance between the second communication hole 124 and the end of the second tank 120 adjacent thereto.
  • the distance between the ends may be made equal to each other.
  • the heat exchange medium in the header tank makes an There is a great effect of achieving the advantages of single dispersion and two-pass, such as improving flow resistance and reducing pressure drop, at the same time.
  • Figure 1 shows the heat exchange medium progress path of a typical 4-pass, 2-row heat exchanger.
  • Figure 2 is an example of the heat exchange medium progress path in a conventional heat exchanger.
  • FIG. 2 is a configuration diagram of the heat exchanger of the present invention.
  • Figure 3 is a heat exchange medium progress path (perspective view) of the heat exchanger of the present invention.
  • Figure 4 is a perspective view of the first and second heat exchange medium progress paths of the heat exchanger of the present invention.
  • Figure 5 is a heat exchange medium progress path (front view) of the heat exchanger of the present invention.
  • Figure 6 is an enlarged view of the X-turn structure of the heat exchanger of the present invention.
  • Figure 7 is a perspective view of a cross baffle.
  • Figure 8 is a detailed view of the heat exchange medium progress path in the X-turn structure.
  • FIG. 2 briefly shows the configuration of the heat exchanger of the present invention.
  • the heat exchanger 100 of the present invention basically includes a first tank 110 and a second tank 120 spaced apart in the vertical direction, as well as between the tanks 110 and 120. It includes a plurality of tubes 150 arranged in, and all are formed in two rows, front and back.
  • the first tank 110 forms a fluid flow space inside and is formed in two rows in the front-back direction by the first partition wall 115
  • the second tank 120 has a fluid flow space inside. Forming a space, they are formed in two rows in the front-back direction by the second partition wall 125 and are arranged side by side at a certain distance apart from the lower side of the first tank 110.
  • the first row 111 and the second row of the first tank are denoted as the first row 111 of the first tank and the second row of the first tank 112, respectively, and the first row of the second tank 120
  • the first and second rows were designated as the first row of the second tank (121) and the second row of the second tank (122), respectively.
  • the plurality of tubes 150 are fixed at both ends to the first tank 110 and the second tank 120 to form a flow path for the heat exchange medium and are arranged in two rows in the front-back direction.
  • the heat exchanger 100 of the present invention may be an evaporator, and the heat exchange medium may be a refrigerant.
  • front and “rear” are simply indicated as shown in the drawing for convenient explanation on the drawing. Meanwhile, in the case of a heat exchanger, front/rear are generally indicated based on the direction of movement of external air, but front/rear in the present invention may or may not coincide with this. In the present invention, front/rear are only referred to in consideration of convenience in explaining the flow of heat exchange medium inside the heat exchanger, and are therefore irrelevant to the direction of movement of external air. Of course, direction indicators such as “left”, “right”, “up”, and “down” used in the following explanation should also be understood from this perspective.
  • the heat exchanger 100 first divides the fluid flow space of the first row 121 of the second tank into a 1-1 space and a 1-2 space,
  • the fluid flow space of the second row of second tanks 122 is formed to be separated into a 2-1 space and a 2-2 space.
  • the heat exchanger 100 is formed so that the heat exchange medium crosses from the 1-1 space to the 2-2 space and from the 1-2 space to the 2-1 space.
  • FIG. 3 shows all travel paths of the heat exchange medium of the heat exchanger of the present invention
  • FIG. 4 shows the travel paths in FIG. 3 divided into first and second travel paths
  • FIG. 5 shows the travel paths in FIG. 3 viewed from the front. It is divided into the first and second columns.
  • the heat exchanger 100 of the present invention is divided into regions in a similar form to the 4-pass 2-row heat exchanger shown in FIG. 1, and has an inlet through which the heat exchange medium flows into the first tank 1st row 111, and a first The second row of tanks 112 is formed to have an outlet through which the heat exchange medium is discharged.
  • the heat exchange medium flows downward in the first row. In the second row, the heat exchange medium only moves upward. In order for the heat exchange medium to advance in this way, in the second tank 120, the heat exchange medium crosses, that is, makes an X turn, as indicated by the dotted line in FIG. 3.
  • some of the heat exchange media are in the inlet, the first row of the first tank 111, the first row of tubes 150, and the first row of the second tank.
  • the remaining part of the heat exchange medium is in the inlet, the first row of the first tank 111, the first row of tubes 150, and the first row of the second tank 121. Proceeds to sequentially pass through space 1-2, space 2-1 of the second row of the second tank 122, second row of the tubes 150, second row of the first tank 112, and the outlet. It is distributed along the second progress path (a-b).
  • this progression path has the advantage of dispersing the heat exchange medium evenly throughout, it increases the flow path length and flow resistance, and also increases the saturation temperature difference due to the pressure drop difference at the inlet and outlet, resulting in There was a risk of deteriorating the overall heat exchange performance.
  • the advantages of uniform heat exchanger dispersion in a 4-pass, 2-row heat exchanger are retained, but by allowing the heat exchange medium to cross in the second tank (X-turn), the heat exchange medium is ultimately formed in a form corresponding to 2 passes.
  • a progression path is formed.
  • the upper drawing of Figure 5 shows the heat exchange medium progress path in the first row
  • the lower drawing shows the heat exchange medium progress path in the second row.
  • the heat exchange media as the heat exchange media crosses in the second tank as described above, the heat exchange media all move downward in the first column on the left (1) and the first column on the right (a), and in the first column on the right, In the second row (2) and the second left row (b), the heat exchange medium all moves upward.
  • the heat exchanger 100 of the present invention separates the areas within the two-row heat exchanger like four passes, but includes an intersecting path in the middle, so it is operated like two passes.
  • the position where the heat exchange medium crosses is formed near the center of the heat exchanger 100 in the left and right directions. More specifically, the distance between the first communication hole 123 and the end of the second tank 120 adjacent thereto is the distance between the second communication hole 124 and the end of the second tank 120 adjacent thereto. It is preferable that they are formed identically to each other.
  • the heat exchanger of the present invention realizes cross-flow of heat exchange media very effectively by using a pair of communication holes and simple but specially shaped baffles. This is explained in detail as follows.
  • the heat exchanger 100 of the present invention has a first communication hole (100) formed on the second partition 125 and spaced apart in the longitudinal direction. 123) and a second communication hole 124.
  • a cross baffle 130 that separates the fluid flow space of the first row of the second tank 121 or the second row of the second tank 122 into two spaces in the longitudinal direction, the second tank 120 It also includes a half baffle 140 that separates the fluid flow space in a row other than the row in which the cross baffle 130 is arranged into two spaces in the longitudinal direction.
  • the cross baffle 130 is shown as being provided in the first row and the half baffle 140 is provided in the second row, but they may be arranged interchangeably (that is, the cross baffle 130 is provided in the second row). In the second row, the half baffle 140 may be provided in the first row).
  • the present invention will be described based on what is shown in the drawings.
  • the half baffle 140 is provided at a position between the first communication hole 123 and the second communication hole 124 spaced apart in the longitudinal direction. That is, by the half baffle 140, the space containing the first communication hole 123 and the space containing the second communication hole 124 are separated into left and right sides. At this time, in order to ensure that the The left and right sides of the space included and the space including the second communication hole 124 must be changed. At this time, since the left and right positions of the communication holes cannot be changed, the first communication hole 123 and the second communication hole 124 are arranged to be spaced apart in the height direction to ensure smooth spatial separation. . At this time, as shown in the upper view of FIG.
  • the cross baffle 130 is composed of a part disposed between communication holes spaced apart in the vertical direction and parts extending from the ends of these to separate the space. , the communication holes are included in the left and right spaces of the first row, which are opposite to the left and right spaces of the second row divided by the half baffle 140.
  • Figure 6 is an enlarged view of the X-turn structure of the heat exchanger of the present invention
  • Figure 7 is a perspective view of the cross baffle.
  • Figure 6 shows a view from the bottom of the second tank 120 with the tank portion removed and only the header portion left so that the internal structure is visible. Accordingly, the positions of the communication holes and the arrangement of the baffles shown in FIG. 5 appear reversed.
  • the cross baffle 130 is shown translucently to show the connection relationship with communication holes, etc., and in FIG. 7, only the cross baffle 130 is clearly shown separately. The shape and arrangement position of the cross baffle 130 will be described in more detail with reference to FIGS. 6 and 7 as follows.
  • the cross baffle 130 includes a pair of baffle parts 131 and 132 and a connection part 133 connecting them.
  • the connecting portion 133 is disposed at a position between the first communication hole 123 and the second communication hole 124 spaced apart in the height direction to horizontally separate the space, As a result, the flow of heat exchange medium is separated in the height direction.
  • the first baffle part 131, one of the pair of baffle parts separates the flow of the heat exchange medium in the longitudinal direction
  • the second baffle part 132 the other one, also separates the flow of the heat exchange medium in the longitudinal direction. It is disposed at a different height from the first baffle part 131.
  • the first baffle part 131 is provided at one end of the connection part 133 and extends to surround the first communication hole 123 together with the connection part 133 to vertically separate the space.
  • the second baffle portion 132 is provided at the other end of the connecting portion 133 and extends to surround the second communication hole 124 together with the connecting portion 133 to vertically separate the space, thereby performing heat exchange. Separate the flow of media longitudinally.
  • the first communication hole 123 is disposed at the upper side and the second communication hole 124 is disposed at the lower side ( Figure 6 is an inverted shape of FIG. 5, so the first communication hole 123 is disposed at the lower side.
  • Figure 6 is an inverted shape of FIG. 5, so the first communication hole 123 is disposed at the lower side.
  • the first communication hole 123 is disposed at the upper side and the second communication hole 124 is disposed at the lower side as shown in FIG. 5.
  • the first baffle portion 131 and the second communication hole 131 are formed along the direction in which the first communication hole 123 and the second communication hole 124 are spaced apart in the height direction. As long as the baffle portion 132 is formed to extend upward or downward, each vertical portion can be formed to surround each communication hole.
  • any one selected from (132) includes a locking portion 134 formed to be caught by the second partition wall 125 at a position where it meets the end of the second partition wall 125.
  • FIG. 8 shows a detailed view of the heat exchange medium progress path in the X-turn structure.
  • FIG. 6 shows the tank portion removed from the second tank 120, leaving only the header portion so that the internal structure is visible, and viewed from the bottom.
  • Figure 6 is a front view
  • Figure 8 is a rear view of the same part as Figure 6.
  • the heat exchange medium that has advanced along the path 1 into the 1-1 space (the rear right space in FIG. 8) of the first row 121 of the second tank is in the cross baffle 130. It passes through the first communication hole 123 and goes to the 2-2 space (front left space in FIG. 8) of the second row 122 and proceeds along the 2 path.
  • the heat exchange medium that has advanced to the 1-2 space (rear left space in FIG. 8) of the first row 121 of the second tank along the path a is connected to the second communication hole (the second communication hole) by the cross baffle 130. 124), it moves to the 2-1 space (the front right space in FIG. 8) of the second row 122 of the second tank, and proceeds along path b.
  • each of the first communication hole 123 and the second communication hole 124 has one to three tubes 150. It is desirable to extend the length corresponding to the area to be formed.
  • the arrangement of the first and second communication holes 123 and 124 in which the top, bottom, left and right are offset, and the top and bottom/left and right spatial separation positions by the cross baffle 130 and the half baffle 140 are appropriately combined.
  • smooth passage of the heat exchange medium in the second tank 120 can be realized.
  • a separate tank with a separate structure for cross-processing was provided, which increases the complexity of the header assembly and is not compatible with existing heat exchangers, reducing productivity and economic efficiency. There were performance problems such as falling, space utilization deteriorated due to the overall increase in volume, and stagnation occurred.
  • the basic form of the heat exchanger 100 of the present invention is almost the same as the existing 4-pass 2-row heat exchanger, but it has a simple structure using the positions of communication holes and the shape and arrangement of baffles, etc., so that the heat exchange medium flows smoothly. Make sure it can be done. Accordingly, according to the present invention, various problems of conventional heat exchangers as described above can be fundamentally eliminated.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

La présente invention concerne un échangeur de chaleur. Le but de la présente invention est de proposer un échangeur de chaleur à quatre voies et deux rangées, un virage en X, c'est-à-dire une progression transversale, d'un fluide d'échange de chaleur pouvant être réalisée dans un collecteur à l'aide d'un type spécial de chicane et d'un trou de communication agencé en fonction de cette dernière. En particulier, le but de la présente invention est de fournir un échangeur de chaleur dans lequel le virage en X est réalisé uniquement par l'ajout d'une chicane et d'un trou de communication tout en maintenant presque la même configuration des échangeurs de chaleur à deux rangées existants, ce qui maximise la compatibilité avec les échangeurs de chaleur existants.
PCT/KR2023/010403 2022-12-15 2023-07-19 Échangeur de chaleur à virage en x WO2024128451A1 (fr)

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KR1020220176158A KR20240093165A (ko) 2022-12-15 2022-12-15 Ｘ턴 열교환기
KR10-2022-0176158 2022-12-15

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005195316A (ja) * 2003-12-08 2005-07-21 Showa Denko Kk 熱交換器
JP2005207716A (ja) * 2003-04-21 2005-08-04 Denso Corp 冷媒蒸発器
JP2012032129A (ja) * 2010-08-03 2012-02-16 Showa Denko Kk エバポレータ
KR20150070767A (ko) * 2013-12-17 2015-06-25 한라비스테온공조 주식회사 증발기
KR20150093441A (ko) * 2014-02-07 2015-08-18 엘지전자 주식회사 열교환기

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2017003140A (ja) 2015-06-05 2017-01-05 株式会社デンソー 冷媒蒸発器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005207716A (ja) * 2003-04-21 2005-08-04 Denso Corp 冷媒蒸発器
JP2005195316A (ja) * 2003-12-08 2005-07-21 Showa Denko Kk 熱交換器
JP2012032129A (ja) * 2010-08-03 2012-02-16 Showa Denko Kk エバポレータ
KR20150070767A (ko) * 2013-12-17 2015-06-25 한라비스테온공조 주식회사 증발기
KR20150093441A (ko) * 2014-02-07 2015-08-18 엘지전자 주식회사 열교환기

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