WO2018230741A1 - Échangeur de chaleur - Google Patents

Échangeur de chaleur Download PDF

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Publication number
WO2018230741A1
WO2018230741A1 PCT/JP2018/023048 JP2018023048W WO2018230741A1 WO 2018230741 A1 WO2018230741 A1 WO 2018230741A1 JP 2018023048 W JP2018023048 W JP 2018023048W WO 2018230741 A1 WO2018230741 A1 WO 2018230741A1
Authority
WO
WIPO (PCT)
Prior art keywords
baffle plate
flat
flat tube
heat exchanger
casing
Prior art date
Application number
PCT/JP2018/023048
Other languages
English (en)
Japanese (ja)
Inventor
悦生 山本
直哉 瀬戸丸
Original Assignee
株式会社ティラド
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 株式会社ティラド filed Critical 株式会社ティラド
Priority to JP2019525594A priority Critical patent/JP7086953B2/ja
Publication of WO2018230741A1 publication Critical patent/WO2018230741A1/fr

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Classifications

    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels

Definitions

  • the present invention is a heat exchanger in which flat tubes are arranged in parallel, cooling water flows on the outer surface side thereof, and gas is guided to the inner surface side. More specifically, the present invention relates to a structure that smoothly guides cooling water to the outer surface side of a flat tube via a baffle plate.
  • the tube support structure of the heat exchanger for an EGR cooler described in Patent Document 1 below forms a core by arranging flat tubes in parallel, distributes cooling water to the outer surface side of the flat tube, and heats the inner surface side of the tube at a high temperature. Of exhaust gas. Then, a baffle plate is appropriately disposed on the outer surface side of the tube to guide the circulation of the cooling water between the flat tubes. Furthermore, what is shown in FIG. 8, FIG. 9 is proposed as an EGR cooler using a baffle plate. That is, a plurality of flat tubes 1a are arranged in parallel, and both ends thereof are inserted into the tube plate 14a to constitute the core 2a.
  • a casing 3c is fitted on the outer periphery of the core 2a, a pair of inlets 4a and outlets 5a are arranged apart from the casing 3c, and a baffle plate 6a is arranged between the inlets 4a and the outlets 5a. And the cooling water 12a is distribute
  • the present invention according to claim 1 has a core 2 in which a plurality of flat tubes 1 are arranged in parallel, and a casing 3 fitted on the outer periphery of the core 2, and an inlet 4 and an outlet for cooling water 12 are provided in the casing 3. 5 are arranged apart from each other, the cooling water 12 is supplied to the outer surface side of each flat tube 1 via the baffle plate 6, and the gas 13 is supplied to the inside of the flat tube 1.
  • the baffle plate 6 is made of a leaf spring material, is disposed between the inlet 4 and the outlet 5, is connected to the inner surface of the casing 3, and has a base 8 having a locking portion 7 at one end, A bridge portion 9 that is integrally extended from the other end portion of the base portion 8 via the folded portion 16 and is inserted between the flat tubes 1, and the bridge portion 9 is curved and deformed to the flat tube 1 side.
  • the heat exchanger is characterized in that an end thereof engages with the locking portion 7.
  • the bridging portions 9 of the baffle plate 6 have slit-like openings 18 in the plane of the leaf spring, and at least a pair of the openings 18 are formed on both sides in the width direction. 2.
  • the base 8 is disposed on one side of the flat tube 1 in the width direction, and the base 8 is connected to a flat surface on one side of the casing 3. 3.
  • the base 8 of the baffle plate 6 made of a leaf spring material is located between the inlet 4 and the outlet 5 and connected to the inner surface of the casing 3, and its bridging portion 9 is a flat tube 1. It is curved and deformed to the side, inserted between the flat tubes 1, and its end engages with the locking portion 7. Therefore, the baffle plate 6 can be easily mounted, and the cooling water 12 can be guided from the inlet 4 to the outlet 5 around the bridging portion 9 to perform heat exchange smoothly. That is, by deforming the bridging portion 9 and engaging its end with the locking portion 7, the cooling water 12 is guided smoothly and heat exchange is promoted. In addition, heat exchange is stably performed while maintaining the deformation state.
  • slit-like openings 18 are formed in the plane of the leaf spring, at least a pair of bridging portions 9 are formed on both sides in the width direction, and the openings 18 are located at both ends of the openings 18. Connected at the end edge (20), the engaging portion (17) at the end engages with the locking portion 7. Therefore, the rigidity of the bridging portion 9 is increased, and the deformation of the baffle plate can be prevented and the cooling water can be stably guided.
  • the bridge portions 9 are arranged in parallel by the number between the flat tubes 1, and the bridge portions 9 are inserted between the flat tubes 1. Therefore, the flow of the cooling water 12 between the flat tubes can be smoothly guided to promote heat exchange.
  • FIG. 1 is a perspective view of a baffle plate 6 used in the heat exchanger of the present invention, showing a state before mounting.
  • FIG. 2 is a schematic view showing a state in which the baffle plate 6 is mounted between the flat tubes 1.
  • FIG. 3 is a schematic diagram showing the mutual relationship between the baffle plate 6 and the flat tube 1, wherein (A) shows a state before the core 2 is fitted to the casing 3, and (B) shows the state after the fitting. Indicates the state.
  • 4A and 4B show a procedure for attaching the baffle plate 6.
  • FIG. 4A shows a state where the bridging portion 9 of the baffle plate 6 is disposed in the gap of the core 2, and FIG.
  • FIG. 5 is a plan view showing the operation of the baffle plate 6.
  • FIG. 6 is a longitudinal sectional view of the same.
  • FIG. 7 is an explanatory diagram showing the flow of the cooling water 12a when the baffle plate 6 is not used.
  • FIG. 8 is an explanatory view showing the flow of the cooling water 12a and the staying portion 19a when the conventional baffle plate 6a is used.
  • FIG. 9 is an explanatory view of attachment of the conventional baffle plate 6a.
  • FIG. 1 and 2 are perspective views of the baffle plate 6 attached to the heat exchanger of the present invention before the attachment.
  • FIG. 1 shows the free state
  • FIG. 2 is an explanatory view in which the baffle plate 6 is curved and mounted between the flat tubes 1.
  • the baffle plate 6 is made of a flat plate spring material and has a base portion 8 and a bridging portion 9.
  • the base portion 8 has a locking portion 7 at one end and a pair of bridging portions 9 that are extended via a folded portion 16 at the other end.
  • crosslinking part 9 is extended beyond the latching
  • a flat slit-shaped opening 18 is formed between the pair of bridging portions 9. That is, the pair of bridging portions 9 are disposed on both sides of the opening 18 in the width direction. In addition, the pair of bridging portions 9 are connected at the edges 20 located at both ends of the opening 18.
  • the baffle plate 6 has a pair of bridging portions 9 that are bent using its elasticity, and the engaging portion 17 is locked to the locking portion 7.
  • this heat exchanger is disposed between the flat tubes as shown in FIGS.
  • a plurality of flat tubes 1 are arranged in parallel, and both end portions thereof are inserted into the tube insertion holes of the tube plate 14.
  • a casing 3 is fitted on the outer periphery of the core 2.
  • the casing 3 includes a casing body 3 a and a lid member 3 b that fits the upper end portion thereof.
  • a large number of dimples 15 protrude from the flat surface of each flat tube 1, and in this example, the dimples 15 are in contact with each other as shown in FIG. [Baffle plate 6 installation procedure]
  • FIGS. 3A and 3B and FIG. 4A the base 8 of the baffle plate 6 is positioned between the inlet 4 and the outlet 5.
  • the bridging portion 9 maintains a planar state, and it faces the side surface of the core 2.
  • the engaging portion 17 is moved to the folding portion 16 side, the pair of bridging portions 9 are bent, and the engaging portion 17 is locked to the locking portion 7 of the base 8.
  • the pair of bridging portions 9 are bent by elastic deformation and inserted between the flat tubes 1.
  • the end edges 20 at both ends of the opening 18 are in contact with or adjacent to the outer periphery of each flat tube 1.
  • the cover material 3b is fitted in FIG. 6 above the casing main body 3a of the casing 3, and the whole is assembled. In this state, the whole is inserted into a high-temperature furnace, and the brazing material coated or applied on the surface of each member is melted to complete the heat exchanger.

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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)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)

Abstract

L'invention concerne un échangeur de chaleur présentant un déflecteur 6, la fixation étant facile, et l'eau de refroidissement pouvant être mise en circulation uniformément sur la surface plate d'un tube plat. Une partie de base 8 du déflecteur 6, qui comprend un élément ressort à lames, est positionnée entre une entrée 4 et une sortie 5, une partie de pontage 9 de celle-ci est incurvée vers le tube plat 1 et insérée dans le tube plat 1, et la partie de bord de la partie de pontage 9 est amenée à venir en prise avec une partie de verrouillage 7.
PCT/JP2018/023048 2017-06-12 2018-06-08 Échangeur de chaleur WO2018230741A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019525594A JP7086953B2 (ja) 2017-06-12 2018-06-08 熱交換器

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2017114866 2017-06-12
JP2017-114866 2017-06-12

Publications (1)

Publication Number Publication Date
WO2018230741A1 true WO2018230741A1 (fr) 2018-12-20

Family

ID=64660629

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2018/023048 WO2018230741A1 (fr) 2017-06-12 2018-06-08 Échangeur de chaleur

Country Status (2)

Country Link
JP (1) JP7086953B2 (fr)
WO (1) WO2018230741A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7528655B2 (ja) 2020-09-08 2024-08-06 富士電機株式会社 直接接触式復水器

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004177060A (ja) * 2002-11-28 2004-06-24 Toyo Radiator Co Ltd Ｅｇｒクーラ
JP2008196319A (ja) * 2007-02-08 2008-08-28 Tokyo Radiator Mfg Co Ltd Ｅｇｒクーラ用熱交換器のチューブ支持構造
JP2014052086A (ja) * 2012-09-05 2014-03-20 T Rad Co Ltd ヘッダプレートレス熱交換器
JP2014194296A (ja) * 2013-03-28 2014-10-09 Usui Kokusai Sangyo Kaisha Ltd 多管式熱交換器

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004177060A (ja) * 2002-11-28 2004-06-24 Toyo Radiator Co Ltd Ｅｇｒクーラ
JP2008196319A (ja) * 2007-02-08 2008-08-28 Tokyo Radiator Mfg Co Ltd Ｅｇｒクーラ用熱交換器のチューブ支持構造
JP2014052086A (ja) * 2012-09-05 2014-03-20 T Rad Co Ltd ヘッダプレートレス熱交換器
JP2014194296A (ja) * 2013-03-28 2014-10-09 Usui Kokusai Sangyo Kaisha Ltd 多管式熱交換器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7528655B2 (ja) 2020-09-08 2024-08-06 富士電機株式会社 直接接触式復水器

Also Published As

Publication number Publication date
JPWO2018230741A1 (ja) 2020-04-16
JP7086953B2 (ja) 2022-06-20

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