JP6532277B2 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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JP6532277B2
JP6532277B2 JP2015088637A JP2015088637A JP6532277B2 JP 6532277 B2 JP6532277 B2 JP 6532277B2 JP 2015088637 A JP2015088637 A JP 2015088637A JP 2015088637 A JP2015088637 A JP 2015088637A JP 6532277 B2 JP6532277 B2 JP 6532277B2
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pair
heat exchanger
tanks
seal
tube plate
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JP2016205718A (en
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八束 中岡
八束 中岡
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T Rad Co Ltd
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Description

本発明は、一例としてエンジン冷却水を冷却する大型の熱交換器に最適なものであって、その冷却水が一対のタンク間を蛇行状に流通するものに関する。   The present invention relates to, as an example, a large heat exchanger that cools engine cooling water, and in which the cooling water circulates between a pair of tanks in a meandering manner.

建設機械用の熱交換器の如く、大型で熱交換量の大きなものであって、エンジン冷却水をＵ字状にまたは、蛇行状に流通させるものが知られている。
下記特許文献１に記載の熱交換器は、コアの上下に一対のタンクを設け、上側のタンクはその長手方向中央に仕切部を配置することにより、冷却水をＵ字状に流通させるものが提案されている。
この熱交換器は、冷却水の流路長が長くなり、熱交換を促進させることができる。 As a heat exchanger for construction machinery, a large-sized one having a large amount of heat exchange, which circulates engine cooling water in a U-shape or in a serpentine manner is known.
In the heat exchanger described in Patent Document 1 below, the cooling water is circulated in a U shape by providing a pair of tanks above and below the core and arranging the partition at the center in the longitudinal direction of the upper tank Proposed.
In this heat exchanger, the flow path length of the cooling water can be lengthened, and heat exchange can be promoted.

特開昭５９−１０４０９６号公報JP-A-59-104096

上側タンク内に仕切を設けて、流体を２パス型に流通させたものは、コアの一方の半分側を流通する温度と他方側を流通する流体の温度とが異なる。そのため、仕切を挟んで隣接するチューブ間に伝熱が生じ、その境界部において熱交換が低下する。それと共に、隣接するチューブ間に温度差が生じ、熱歪みを生じる。
そこで本発明は、複パス型の熱交換器においてコアの一方側から他方側に伝熱の生じ難いものを提供することを課題とする。 In the upper tank, a partition is provided and fluid is circulated in a two-pass type, the temperature flowing through one half of the core differs from the temperature flowing through the other side of the core. Therefore, heat transfer occurs between the adjacent tubes sandwiching the partition, and heat exchange at the boundary decreases. At the same time, a temperature difference occurs between adjacent tubes, causing thermal distortion.
Then, this invention makes it a subject to provide what is hard to produce a heat transfer from the one side of a core to the other side in a multipass-type heat exchanger.

請求項１に記載の本発明は、内部に被冷却媒体１４が流通する偏平チューブ１と、冷却風が流通するフィン２とが交互に定ピッチで並列されたコア３と、各偏平チューブ１の両端が連通する一対のタンク４，５とを有し、被冷却媒体１４が両タンク４，５間を複パスに蛇行する熱交換器において、
両タンク４，５の長手方向の中間位置で、隣り合う偏平チューブのそれぞれの端部が閉塞された少なくとも一対の仕切用チューブ６を形成し、一対の各仕切用チューブ６にはそれぞれ被冷却媒体が流通しないように形成し、
前記一対のタンク４，５は、それぞれ一端開放のタンク本体４ａ，５ａとその開放端に被嵌されるチューブプレート４ｂ，５ｂからなり、
前記一対のタンク４，５のうち、他方のタンク本体５ａの長手方向の中間位置には、前記チューブプレート５ｂに対向して橋部１０が一体に形成されると共に、その橋部１０の前記長手方向の両端に一対の脚部１０ａが前記幅方向に形成され、前記一対の脚部１０ａの端面とチューブプレート５ｂとの間にシール１１が介装された熱交換器である。 According to the present invention, the flat tube 1 through which the medium to be cooled 14 flows and the core 3 in which the fins 2 through which the cooling air flows are alternately juxtaposed at a constant pitch; In a heat exchanger having a pair of tanks 4 and 5 whose ends are in communication with each other, the medium 14 to be cooled meanders between the two tanks 4 and 5 in a double pass,
At least one pair of partitioning tubes 6 in which the respective end portions of the adjacent flat tubes are closed at an intermediate position in the longitudinal direction of the two tanks 4 and 5 is formed. Form so that it does not circulate ,
The pair of tanks 4 and 5 are respectively composed of tank bodies 4a and 5a open at one end and tube plates 4b and 5b fitted to the open ends, respectively.
The bridge portion 10 is integrally formed facing the tube plate 5b at an intermediate position in the longitudinal direction of the other tank main body 5a of the pair of tanks 4 and 5, and the longitudinal length of the bridge portion 10 In the heat exchanger, a pair of legs 10a are formed in the width direction at both ends of the direction, and a seal 11 is interposed between the end surfaces of the pair of legs 10a and the tube plate 5b .

請求項２に記載の本発明は、請求項１に記載の熱交換器において、
前記一対のタンク４，５のうち、一方のタンク本体４ａの長手方向の中間位置に、それぞれタンク本体４ａの幅方向に横断する一対の仕切板８が互いに対向して配置され、
前記一対の仕切板８内に前記一対の仕切用チューブ６の端部が配置され、前記一対の仕切板８の端面とチューブプレート４ｂとの間にシール１１が介装された熱交換器である。 According to a second aspect of the present invention, in the heat exchanger according to the first aspect,
Between the pair of tanks 4 and 5, a pair of partition plates 8 which respectively cross in the width direction of the tank body 4a are disposed to face each other at an intermediate position in the longitudinal direction of one tank body 4a.
In the heat exchanger, the ends of the pair of partition tubes 6 are disposed in the pair of partition plates 8, and the seal 11 is interposed between the end surfaces of the pair of partition plates 8 and the tube plate 4b. .

請求項３に記載の本発明は、請求項１又は請求項２のいずれかに記載の熱交換器において、
前記橋部１０の前記チューブプレート５ｂと反対側の表面が、被冷却媒体１４の上流側から下流側に下り傾斜している熱交換器である。 According to a third aspect of the present invention, in the heat exchanger according to the first or second aspect ,
The surface of the bridge portion 10 opposite to the tube plate 5 b is a heat exchanger which is inclined downward from the upstream side to the downstream side of the medium to be cooled 14.

請求項４に記載の本発明は、請求項１〜請求項３のいずれかに記載の熱交換器において、
前記シール１１は、タンク本体４ａ，５ａの外周縁に整合する環状部１１ｂと、その長手方向の中間位置で、前記仕切板８または前記脚部１０ａに整合して配置された一対の架橋部１１ａとを有し、そのシール１１がタンク本体４ａ，５ａとチューブプレート４ｂ，５ｂとの間に介装される熱交換器である。 According to a fourth aspect of the present invention, in the heat exchanger according to any one of the first to third aspects,
The seal 11 is an annular portion 11b aligned with the outer peripheral edge of the tank body 4a, 5a, and a pair of bridge portions 11a aligned in alignment with the partition plate 8 or the leg 10a at an intermediate position in the longitudinal direction thereof. And the seal 11 is a heat exchanger interposed between the tank bodies 4a, 5a and the tube plates 4b, 5b.

本発明は複パス型の熱交換器において、両タンク４，５の長手方向の中間位置で、隣り合う偏平チューブのそれぞれの端部が閉塞された一対の仕切用チューブ６を有し、その一対の各仕切用チューブ６には被冷却媒体１４が流通しないように形成したものである。
従って、隣り合う二本の仕切用チューブにより、コアの中間に空気層を形成して、コアの一方側から他方側への熱伝達を、従来よりも幅広く遮断する。即ち、隣り合う流路間の熱伝達を平面的な広がりをもって阻止し、コアの各部の熱交換を促進することができる。
また、一対のタンク４，５を、それぞれタンク本体４ａ，５ａとチューブプレート４ｂ，５ｂから形成し、他方のタンク本体５ａの長手方向の中間位置に、チューブプレート５ｂに対向して橋部１０を一体に形成し、その橋部１０の両端に一対の脚部１０ａを設け、その脚部１０ａの端面とチューブプレート５ｂとの間にシール１１を介装した場合には、他方のタンク５内で、一対の仕切用チューブ６のシールを確実に行うことができる。 The present invention is a multi-pass type heat exchanger, having a pair of partitioning tubes 6 in which the respective ends of adjacent flat tubes are closed at an intermediate position in the longitudinal direction of both tanks 4, 5 Each of the partition tubes 6 is formed so that the medium to be cooled 14 does not flow.
Therefore, an air layer is formed in the middle of the core by two adjacent partition tubes, and the heat transfer from one side of the core to the other side is blocked wider than before. That is, the heat transfer between the adjacent flow paths can be prevented in a planar spread, and the heat exchange of each part of the core can be promoted.
Further, a pair of tanks 4 and 5 are formed of the tank bodies 4a and 5a and the tube plates 4b and 5b, respectively, and the bridge portion 10 is opposed to the tube plate 5b at an intermediate position in the longitudinal direction of the other tank body 5a. In the case where the seal 11 is formed integrally and provided with a pair of leg portions 10a at both ends of the bridge portion 10 and the seal 11 is interposed between the end surface of the leg portion 10a and the tube plate 5b, The sealing of the pair of partitioning tubes 6 can be performed reliably.

請求項２に記載の熱交換器のように、その長手方向の中間位置に、一対の仕切板８を互いに対向して配置し、その内部に一対の仕切用チューブ６の端部を配置し、各仕切板８の端面と、チューブプレート４ｂとの間にシール１１を介装した場合には、一対の各仕切用チューブ６内の被冷却媒体１４の流通の阻止を確実にし、製造の容易な、複パス型熱交換器を提供することができる。 As in the heat exchanger according to claim 2, a pair of partition plates 8 are disposed opposite to each other at an intermediate position in the longitudinal direction, and the ends of the pair of partition tubes 6 are disposed therein, When the seal 11 is interposed between the end face of each partition plate 8 and the tube plate 4b, the flow of the medium to be cooled 14 in each of the pair of partition tubes 6 is surely prevented, and the manufacture is easy. , A multi-pass heat exchanger can be provided.

請求項３に記載の発明のように、橋部１０のチューブプレート５ｂと反対側の表面を、被冷却媒体の上流側から下流側に下り傾斜にした場合には、その橋部１０でタンク５内の被冷却媒体の流速を速くして、その流通を円滑にできる。
請求項４に記載の発明のように、シール１１が、タンク本体４ａ，５ａの外周縁に整合する環状部１１ｂ と、仕切板８または前記脚部１０ａに整合する一対の架橋部１１ａとを有し、そのシール１１がタンク本体４ａ，５ａとチューブプレート４ｂ，５ｂとの間に介装される場合には、タンク本体４ａ，５ａとチューブプレート４ｂ，５ｂとの組立てを容易に行うと共に、シール１１の信頼性を向上できる。 As in the invention according to claim 3, when the surface opposite to the tube plate 5b of the bridge portion 10 is inclined downward from the upstream side to the downstream side of the medium to be cooled, the tank 5 at the bridge portion 10 The flow velocity of the medium to be cooled can be increased to facilitate the flow.
As in the invention according to claim 4 , the seal 11 has an annular portion 11b aligned with the outer peripheral edge of the tank body 4a, 5a, and a pair of bridge portions 11a aligned with the partition plate 8 or the leg 10a. When the seal 11 is interposed between the tank bodies 4a, 5a and the tube plates 4b, 5b, the tank bodies 4a, 5a and the tube plates 4b, 5b can be easily assembled and sealed. 11 reliability can be improved.

本発明の第１実施例の縦断面図。The longitudinal cross-sectional view of 1st Example of this invention. 図１のII−II線断面図。II-II sectional view taken on the line of FIG. 同実施例に用いるシール11の平面図および、Ｂ−Ｂ断面図。The top view and BB sectional drawing of the seal | sticker 11 used for the embodiment. 本発明の第２実施例の縦断面図。The longitudinal cross-sectional view of 2nd Example of this invention.

次に、図面に基づいて本発明の実施の形態につき説明する。   Next, an embodiment of the present invention will be described based on the drawings.

図１は本発明の第１実施例の縦断面図であり、図２はそのII−II線断面図である。
また、図３はそれに用いるシール１１の平面および、断面図である。
これは一例として、大型の２パス型のエンジン冷却水冷却用の熱交換器である。
この熱交換器は、偏平チューブ１とフィン２とを交互に並列して、コア３を形成する。そしてコア３の上下両端に一対のタンク４，５が配置されている。各タンク４，５は細長い樹脂製のタンク本体４ａ、５ａの夫々の開口部をチューブプレート４ｂ、５ｂにより閉塞する。 FIG. 1 is a longitudinal sectional view of a first embodiment of the present invention, and FIG. 2 is a sectional view taken along the line II-II.
FIG. 3 is a plan view and a cross-sectional view of the seal 11 used therein.
This is, as an example, a large two-pass heat exchanger for engine coolant cooling.
This heat exchanger forms the core 3 by alternately arranging the flat tubes 1 and the fins 2. A pair of tanks 4 and 5 are disposed at upper and lower ends of the core 3. Each of the tanks 4 and 5 closes the opening of each of the elongated resin tank bodies 4a and 5a with the tube plates 4b and 5b.

この例では、上側のタンク本体４ａはその中間部に一対の仕切板８が一体に形成されている。一対の仕切板８の間隔は、偏平チューブ１の並列した間隔の２ピッチ分に形成されている。タンク４のチューブプレート４ｂには、等間隔に偏平孔が並列し、各偏平孔に偏平チューブ１の端部が挿通されている。
このチューブプレート４ｂとタンク本体４ａとの間には、図３に示すシール１１が介装される。このシール１１は、タンク本体４ａの外周に整合する環状部１１ｂと、仕切板８に整合する架橋部１１ａとが一体に形成されている。なお、シール１１の断面形状は、円形、楕円形、方形のいずれでもよい。シール１１は予めタンク本体４ａに接着しておくことができる。そしてシール１１を介して、タンク本体４ａをチューブプレート４ｂに圧接して、タンク本体４ａの外周に予め突設された図示しない爪部を折り曲げてカシメることにより、タンク４を形成できる。 In this example, the upper tank body 4a is integrally formed with a pair of partition plates 8 in the middle thereof. The distance between the pair of partition plates 8 is formed at two pitches of the parallel distance of the flat tubes 1. Flat holes are arranged in parallel at equal intervals in the tube plate 4b of the tank 4, and the end of the flat tube 1 is inserted into each flat hole.
A seal 11 shown in FIG. 3 is interposed between the tube plate 4b and the tank body 4a. In the seal 11, an annular portion 11b aligned with the outer periphery of the tank main body 4a and a bridge portion 11a aligned with the partition plate 8 are integrally formed. The cross-sectional shape of the seal 11 may be circular, oval, or square. The seal 11 can be adhered to the tank body 4a in advance. Then, the tank main body 4a is press-contacted to the tube plate 4b through the seal 11, and the not-shown claw portion protrudingly provided in advance on the outer periphery of the tank main body 4a is bent and caulked, whereby the tank 4 can be formed.

次に、この例では下側のタンク本体５ａには、その長手方向の中間部に橋部１０が、図１、図２に記載の如く、一体に形成されている。その橋部１０はタンク本体５ａの開口近くに、一対の仕切用チューブ６の端に対向して、それを覆うように配置され、その両側に脚部１０ａがチューブプレート５ｂ側に曲折されている。その橋部１０の図において下面側は、タンク５内の被冷却媒体１４の流通方向に下方へ下がる傾斜面を有する。また、そのタンク５の底側は貫通部９であり、そこを被冷却媒体１４が流通できる。そして、タンク本体５ａとチューブプレート５ｂとの間に、図３に示すシール１１が介装される。そのシール１１の架橋部１１ａは、橋部１０の脚部１０ａに整合する。そして、下側のタンク本体タンク５ａとチューブプレート５ｂとの間が、上側タンク４と同様にカシメにより固定されてタンク５を形成する。   Next, in this example, in the lower tank main body 5a, a bridge portion 10 is integrally formed at an intermediate portion in the longitudinal direction as shown in FIGS. The bridge portion 10 is disposed near the opening of the tank main body 5a so as to face and cover the ends of the pair of dividing tubes 6, and the leg portions 10a are bent on both sides to the tube plate 5b side. . The lower surface side in the figure of the bridge portion 10 has an inclined surface which descends downward in the flow direction of the medium to be cooled 14 in the tank 5. Further, the bottom side of the tank 5 is a penetrating portion 9 through which the medium to be cooled 14 can flow. Then, a seal 11 shown in FIG. 3 is interposed between the tank body 5a and the tube plate 5b. The bridge portion 11 a of the seal 11 is aligned with the leg portion 10 a of the bridge portion 10. The lower tank main body tank 5 a and the tube plate 5 b are fixed by caulking in the same manner as the upper tank 4 to form the tank 5.

そして、上側のタンク４のタンク本体４ａに設けた入口１２から被冷却媒体１４として、エンジン冷却水がタンク４の左半分に流入し、それがコアの左半分の各偏平チューブ１を流通して下側タンク５に達し、そのタンク５内を左方から右方に移動して右半分の各偏平チューブ１内を上昇し、右半分のタンク４から出口１３を介して外部に流出する。そして各偏平チューブ１及びフィン２の外面に、紙面の表面側から裏面側方向に冷却風が流通し、それと冷却水の被冷却媒体１４との間に熱交換が行われる。このとき、中央に位置する一対の仕切用チューブ６は、その両端が閉塞されているため、そこには被冷却媒体１４は流通しない。そのため。コア３において一対の仕切用チューブ６が左右のコア部の断熱部を形成する。
また、上側のタンク４においては一対の仕切板８及びシール１１がタンク４内の断熱層を形成する。そして、一対の仕切板８はタンク４を二重に仕切ると共に、それがタンクの耐圧性を向上させる。 Then, engine cooling water flows into the left half of the tank 4 as the medium to be cooled 14 from the inlet 12 provided in the tank body 4 a of the upper tank 4, and it flows through the flat tubes 1 in the left half of the core. The lower tank 5 is reached, and the inside of the tank 5 is moved from the left to the right to rise in the flat tubes 1 of the right half and flow out from the tank 4 of the right half via the outlet 13. Then, the cooling air flows from the front surface side to the rear surface side on the outer surface of the flat tubes 1 and the fins 2 and heat exchange is performed between the cooling air and the medium 14 to be cooled. At this time, since the both ends of the pair of dividing tubes 6 positioned at the center are closed, the medium to be cooled 14 does not flow there. for that reason. In the core 3, the pair of partitioning tubes 6 form heat insulating portions of the left and right core portions.
In the upper tank 4, the pair of partition plates 8 and the seals 11 form a heat insulating layer in the tank 4. The pair of partition plates 8 divides the tank 4 in a double manner, which improves the pressure resistance of the tank.

上記の例では、下側のタンク本体５ａの橋部１０の下面側を、下流側に下方に下がる傾斜としたが、それを図４に示すように、チューブプレート５ｂの平面に平行に配置しても良い。また、シール１１は、その環状部１１ａと架橋部１１ｂとを一体に形成したが、両者を別体に形成してもよい。また、この例では、上側のタンク４のシール１１と、下側のタンク５のシール１１を同一形状にしたが、それらの形状を異ならせてもよい。   In the above example, the lower surface side of the bridge portion 10 of the lower tank main body 5a is inclined downward to the downstream side, but it is disposed parallel to the plane of the tube plate 5b as shown in FIG. It is good. Moreover, although the seal | sticker 11 integrally formed the cyclic | annular part 11a and the bridge | crosslinking part 11b, you may form both in another body. Moreover, although the seal | sticker 11 of the upper tank 4 and the seal | sticker 11 of the lower tank 5 were made into the same shape in this example, those shapes may be varied.

（他の実施の形態）
上記実施例では２パス型の熱交換器について述べたが、冷却水を蛇行状に流通させる多パス型熱交換器とすることもできる。その場合、下側のタンク５にも一対ずつの仕切板８が設けられる。この熱交換器をインタークーラその他の用途の熱交換器として使用することもできる。 (Other embodiments)
Although the two-pass type heat exchanger has been described in the above embodiment, it may be a multi-pass type heat exchanger which circulates the cooling water in a serpentine manner. In that case, the lower tank 5 is also provided with a pair of partition plates 8. This heat exchanger can also be used as a heat exchanger for intercoolers and other applications.

１ 偏平チューブ
２ フィン
３ コア
４ タンク
４ａ タンク本体
４ｂ チューブプレート
５ タンク
５ａ タンク本体
５ｂ チューブプレート
６ 仕切用チューブ 1 flat tube 2 fin 3 core 4 tank 4a tank body 4b tube plate 5 tank 5a tank body 5b tube plate 6 dividing tube

８ 仕切板
９ 貫通部
１０ 橋部
１０ａ 脚部
１１ シール
１１ａ 架橋部
１１ｂ 環状部
１２ 入口
１３ 出口
１４ 被冷却媒体 Reference Signs List 8 partition plate 9 penetrating portion 10 bridge portion 10 a leg portion 11 seal 11 a bridge portion 11 b annular portion 12 inlet 13 outlet 14 cooled medium

Claims (4)

内部に被冷却媒体（１４）が流通する偏平チューブ（１）と、冷却風が流通するフィン（２）とが交互に定ピッチで並列されたコア（３）と、各偏平チューブ（１）の両端が連通する一対のタンク（４）（５）とを有し、被冷却媒体（１４）が両タンク（４）（５）間を複パスに蛇行する熱交換器において、
両タンク（４）（５）の長手方向の中間位置で、隣り合う偏平チューブのそれぞれの端部が閉塞された少なくとも一対の仕切用チューブ（６）を形成し、一対の各仕切用チューブ（６）にはそれぞれ被冷却媒体が流通しないように形成し、
前記一対のタンク（４）（５）は、それぞれ一端開放のタンク本体（４ａ）（５ａ）とその開放端に被嵌されるチューブプレート（４ｂ）（５ｂ）からなり、
前記一対のタンク（４）（５）のうち、他方のタンク本体（５ａ）の長手方向の中間位置には、前記チューブプレート（５ｂ）に対向して橋部（１０）が一体に形成されると共に、その橋部（１０）の前記長手方向の両端に一対の脚部（１０ａ）が前記幅方向に形成され、前記一対の脚部（１０ａ）の端面とチューブプレート（５ｂ）との間にシール（１１）が介装された熱交換器。 A core (3) in which flat tubes (1) through which a medium to be cooled (14) circulates and fins (2) through which cooling air circulates are alternately arranged at a constant pitch, and of each flat tube (1) In a heat exchanger having a pair of tanks (4) and (5) whose both ends are in communication with each other and a medium to be cooled (14) meanders between the two tanks (4) and (5) in multiple passes,
At least one pair of partitioning tubes (6) in which the respective ends of adjacent flat tubes are closed at an intermediate position in the longitudinal direction of both tanks (4) and (5), a pair of partitioning tubes (6 ) Is formed so that the medium to be cooled does not flow .
Each of the pair of tanks (4) (5) comprises a tank body (4a) (5a) open at one end and a tube plate (4b) (5b) fitted to the open end,
A bridge portion (10) is integrally formed facing the tube plate (5b) at an intermediate position in the longitudinal direction of the other tank body (5a) of the pair of tanks (4) (5) And a pair of leg portions (10a) are formed in the width direction at both ends in the longitudinal direction of the bridge portion (10), and between the end surfaces of the pair of leg portions (10a) and the tube plate (5b) Heat exchanger fitted with a seal (11) . 請求項１に記載の熱交換器において、
前記一対のタンク（４）（５）のうち、一方のタンク本体（４ａ）の長手方向の中間位置に、それぞれタンク本体（４ａ）の幅方向に横断する一対の仕切板（８）が互いに対向して配置され、
前記一対の仕切板（８）内に前記一対の仕切用チューブ（６）の端部が配置され、前記一対の仕切板（８）の端面とチューブプレート（４ｂ）との間にシール（１１）が介装された熱交換器。 In the heat exchanger according to claim 1,
Of the pair of tanks (4) (5), a pair of partition plates (8) which cross in the width direction of the tank body (4a) face each other at an intermediate position in the longitudinal direction of one tank body (4a). Placed and
It said pair of partition plates (8) ends of the pair of partition tube (6) is disposed within the end face and the tube plate of the pair of partition plates (8) (4b) seal between the (11) A heat exchanger that is interposed. 請求項１又は請求項２のいずれかに記載の熱交換器において、
前記橋部（１０）の前記チューブプレート（５ｂ）と反対側の表面が、被冷却媒体（１４）の上流側から下流側に下り傾斜している熱交換器。 The heat exchanger according to any one of claims 1 or 2
A heat exchanger, wherein the surface of the bridge portion (10) opposite to the tube plate (5b) is inclined downward from the upstream side to the downstream side of the medium to be cooled (14). 請求項１〜請求項３のいずれかに記載の熱交換器において、
前記シール（１１）は、タンク本体（４ａ）（５ａ）の外周縁に整合する環状部（１１ｂ）と、その長手方向の中間位置で、前記仕切板（８）または前記脚部（１０ａ）に整合して配置された一対の架橋部（１１ａ）とを有し、そのシール（１１）がタンク本体（４ａ）（５ａ）とチューブプレート（４ｂ）（５ｂ）との間に介装される熱交換器。 In the heat exchanger according to any one of claims 1 to 3 ,
The seal (11) is formed on the partition plate (8) or the leg (10a) at an annular position (11b) aligned with the outer peripheral edge of the tank body (4a) (5a) and at an intermediate position in the longitudinal direction thereof. Thermally having a pair of cross-linking portions (11a) arranged in alignment, the seal (11) being interposed between the tank body (4a) (5a) and the tube plate (4b) (5b) Exchanger.
JP2015088637A 2015-04-23 2015-04-23 Heat exchanger Expired - Fee Related JP6532277B2 (en)

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