JP2005195190A - Multiplate heat exchanger - Google Patents

Multiplate heat exchanger Download PDF

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JP2005195190A
JP2005195190A JP2003435535A JP2003435535A JP2005195190A JP 2005195190 A JP2005195190 A JP 2005195190A JP 2003435535 A JP2003435535 A JP 2003435535A JP 2003435535 A JP2003435535 A JP 2003435535A JP 2005195190 A JP2005195190 A JP 2005195190A
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width
heat exchanger
corrugated metal
exhaust gas
metal plates
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Toshiyuki Horiuchi
俊行 堀内
Kimiaki Nakano
公昭 中野
Takuya Iwamoto
卓也 岩本
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Toyo Radiator Co Ltd
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Toyo Radiator Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a multiplate heat exchanger having improved efficiency by setting exhaust gas 5 and heated fluid 7 to be each optimum in pressure loss with no clogging. <P>SOLUTION: One of the width of a ridge portion 3 of the cross section of each of the waves of wavy metal plates 1, 2 and the width of a valley portion 4 adjacent to the mountain portion 3 is greater than the other. An exhaust gas flow path 6 is provided in a recessed groove where the width is greater and a heated fluid flow path 8 is provided in a recessed groove where the width is smaller. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は多数の波が並列した波形金属板１，２を多数積層し、各波形金属板１，２の一方側と他方側とに排ガス５と被加熱流体７とを交互に流通させる多板型熱交換器に関する。   The present invention is a multi-plate in which a large number of corrugated metal plates 1 and 2 in which a large number of waves are arranged are stacked, and exhaust gas 5 and heated fluid 7 are alternately circulated on one side and the other side of each corrugated metal plate 1 and 2. It relates to a mold heat exchanger.

波形金属板を多数積層した多板型熱交換器は、その波形が等ピッチで曲折形成されていた。即ち、波の山の幅と谷の幅とが同一に形成されたものが使用されている。そして、対向する一対の波形金属板間に被加熱流体を流通させ、その外側に加熱流体を流通させていた。加熱用の流体が排ガスの場合、被加熱流体に比べて目詰まりしやすいとともに、排ガス側の流通抵抗を低く抑える傾向にある。このような場合、その圧力損失を少なくするため、排ガスが流通する一対の金属板間の間隔を、被加熱流体の流路側よりも大きくする必要があった。   In the multi-plate heat exchanger in which a large number of corrugated metal plates are laminated, the corrugation is bent at an equal pitch. That is, a wave crest and a trough having the same width are used. And the to-be-heated fluid was distribute | circulated between a pair of opposing corrugated metal plates, and the heating fluid was distribute | circulated to the outer side. When the heating fluid is exhaust gas, it tends to be clogged as compared with the fluid to be heated, and the flow resistance on the exhaust gas side tends to be kept low. In such a case, in order to reduce the pressure loss, it is necessary to make the interval between the pair of metal plates through which the exhaust gas circulates larger than the channel side of the fluid to be heated.

高温排ガスによる目詰まりを防止し、圧力損失を減少させるために、排ガス側の金属板間の間隔を被加熱流体側のそれより広くとると、熱交換器全体が大型化し、コンパクト製に欠ける欠点がある。そこで本発明は、コンパクトで且つ、目詰まりが起こりにくく、流通に伴う圧力損失を最適な範囲にできる、寿命が長い効率のよい多板型熱交換器を提供することを課題とする。   In order to prevent clogging due to high-temperature exhaust gas and reduce pressure loss, if the distance between the metal plates on the exhaust gas side is wider than that on the heated fluid side, the entire heat exchanger will be large and it will not be compact. There is. Accordingly, an object of the present invention is to provide an efficient multi-plate heat exchanger that is compact, is less likely to be clogged, has a long life, and can achieve a pressure loss accompanying distribution in an optimum range.

請求項１に記載の本発明は、夫々多数の波の並列した波形金属板(1)(2)が多数等間隔に積層され、
各波形金属板(1)(2)の一方側と他方側とに異なる流体が流通して、両流体間に熱交換が行われる多板型熱交換器において、
その波形金属板(1)(2)は、その各波の断面の山部(3) の幅と、その山部(3) に隣接する谷部(4) の幅とのうち、一方が他方より大とされた一組の基本波形を形成し、その基本波形が周期的に多数並列されてなり、
幅を大とした位置の凹溝内に加熱用の排ガス(5) を流通させる排ガス流路(6) が設けられると共に、小とした位置の凹溝内に被加熱流体(7) を流通させる被加熱流体流路(8) が設けられたことを特徴とする多板型熱交換器である。 In the present invention according to claim 1, a plurality of corrugated metal plates (1) and (2) in which a large number of waves are arranged in parallel are laminated at equal intervals,
In the multi-plate heat exchanger in which different fluids are circulated on one side and the other side of each corrugated metal plate (1) (2) and heat exchange is performed between both fluids,
The corrugated metal plate (1) (2) has one of the width of the crest (3) of the cross section of each wave and the width of the trough (4) adjacent to the crest (3). A larger set of basic waveforms is formed, and the basic waveforms are periodically arranged in parallel.
An exhaust gas flow path (6) for circulating the exhaust gas (5) for heating is provided in the groove at the position where the width is increased, and the heated fluid (7) is distributed in the groove at the position where the width is reduced. A multi-plate heat exchanger provided with a heated fluid flow path (8).

請求項２に記載の本発明は、請求項１において、
互いに対向する一対の波形金属板(1)(2)は、夫々前記幅を大とした凹溝の内面どうしが対向すると共に、小とした凹溝の内面どうしが対向するように形成した多板型熱交換器である。
請求項３に記載の本発明は、請求項１または請求項２において、
前記波形金属板(1)(2)の各波の稜線(8a)(8b)が蛇行状に形成され、対向する各稜線(8a)(8b)が互いに交差するように配置された多板型熱交換器である。 The present invention according to claim 2 is the method according to claim 1,
A pair of corrugated metal plates (1) and (2) facing each other are multi-plates formed such that the inner surfaces of the concave grooves with the large width face each other, and the inner surfaces of the small concave grooves face each other. It is a mold heat exchanger.
According to a third aspect of the present invention, in the first or second aspect,
The corrugated metal plates (1) and (2) have ridge lines (8a) and (8b) formed in a meandering manner, and the ridge lines (8a) and (8b) facing each other are arranged so as to intersect each other. It is a heat exchanger.

本発明の多板型熱交換器は、多数の波形金属板１，２を積層したものにおいて、波の断面の幅を大とした位置の凹溝内に加熱用の排ガス５を流通させる排ガス流路６が設けられ、それに隣接する幅を小とした位置の凹溝内に被加熱流体７を流通させる被加熱流体流路８が設けられたものである。それにより、同一のピッチで積層された波形金属板１，２において、排ガス５の流通を促進させ、その圧力損失を減じて目詰まりを防止し得る。そして、多板型熱交換器の寿命を延ばし熱交換を促進し得る効果がある。   The multi-plate heat exchanger according to the present invention is an exhaust gas flow in which a heating exhaust gas 5 is circulated in a concave groove at a position where the width of a wave cross section is large in a laminate of a large number of corrugated metal plates 1 and 2. A channel 6 is provided, and a heated fluid channel 8 through which the heated fluid 7 is circulated is provided in a recessed groove at a position adjacent to the channel 6 with a small width. Thereby, in the corrugated metal plates 1 and 2 laminated at the same pitch, the flow of the exhaust gas 5 can be promoted, and the pressure loss can be reduced to prevent clogging. And there exists an effect which can extend the lifetime of a multi-plate type heat exchanger and can accelerate | stimulate heat exchange.

上記構成において、互いに対向する一対の波形金属板１，２は、それぞれ幅を大とした位置の凹溝の内面どうしを対向させると共に、小とした位置の凹溝の内面どうしを対向させるように構成することができる。それにより、一対の波形金属板１，２の幅を大とした凹溝どうしの間に排ガス５を流通させ、小とした凹溝どうしの間に被加熱流体７を流通させることができる。そして、構造が簡単でより目詰まりしにくい多板型熱交換器を提供できる。   In the above-described configuration, the pair of corrugated metal plates 1 and 2 facing each other face the inner surfaces of the groove at the position where the width is increased, and face the inner surfaces of the groove at the position where the width is small. Can be configured. As a result, the exhaust gas 5 can be circulated between the grooves having a large width between the pair of corrugated metal plates 1 and 2, and the heated fluid 7 can be circulated between the grooves having a small width. In addition, a multi-plate heat exchanger having a simple structure and less clogging can be provided.

上記何れかの多板型熱交換器において、波形金属板１，２の各波の稜線８ａ，稜線８ｂを蛇行状に形成し、対向するそれらが互いに交差するように配置することができる。この場合には、排ガス５および被加熱流体７の各流路を長くし、熱交換を促進し得る。   In any one of the multi-plate heat exchangers described above, the ridgelines 8a and ridgelines 8b of each wave of the corrugated metal plates 1 and 2 can be formed in a meandering shape and arranged so that they face each other. In this case, each flow path of the exhaust gas 5 and the heated fluid 7 can be lengthened to promote heat exchange.

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。図１は本発明の多板型熱交換器の要部を示し、その（Ａ）は要部横断面図、（Ｂ）は同平面図である。また図２は同熱交換器の要部斜視図、図３は同熱交換器の平面図である。   Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a main part of a multi-plate heat exchanger according to the present invention, in which (A) is a cross-sectional view of the main part and (B) is a plan view thereof. 2 is a perspective view of the main part of the heat exchanger, and FIG. 3 is a plan view of the heat exchanger.

この熱交換器は図２，図３に示す如く、互いに対向する一対の波形金属板１，２の周縁を閉塞すると共に、その平面の両端部にヘッダー部９を設け、夫々のヘッダー部９に出入口10を連通させてエレメント11を形成し、多数のエレメント11を厚み方向に並列させて熱交換器コアを構成したものである。そして、それぞれのエレメント11には、その両端部に配置された一対のヘッダー部９間に偏平流路が形成され、その偏平流路内に多数の波が曲折されたものである。
そして、各エレメント11の内部に設けられた偏平な被加熱流体流路８内に被加熱流体７が流通し、各エレメント11の外面側間に設けられた排ガス流路６に高温の排ガス５が流通するものである。 2 and 3, the heat exchanger closes the peripheral edges of the pair of corrugated metal plates 1 and 2 facing each other, and is provided with header portions 9 at both ends of the plane. The entrance / exit 10 is connected to form an element 11, and a large number of elements 11 are juxtaposed in the thickness direction to constitute a heat exchanger core. And in each element 11, a flat flow path is formed between a pair of header parts 9 arrange | positioned at the both ends, and many waves are bent in the flat flow path.
And the to-be-heated fluid 7 distribute | circulates in the flat to-be-heated fluid flow path 8 provided in the inside of each element 11, and the high temperature waste gas 5 flows into the exhaust gas flow path 6 provided between the outer surface sides of each element 11. Circulate.

波形金属板１，２は、その横断面が図１（Ａ）に示す如く、波の高さ（波の振幅に相当する）の同一な多数の波が並列してなり、その波の各断面は山部３の幅がそれに隣接する谷部４の幅よりも小に形成されている。また波形金属板１とそれに隣接する波形金属板２は互いに逆向きに接触する。そして、波形金属板１，２における山部３の稜線８ａ、稜線８ｂは図１（Ｂ）に示す如く、それぞれ蛇行状に形成されると共に、その平面における位相が１８０度互いに位置ずれし、それらが交差するように配置されている。そして上下一対の波形金属板１，２でエレメント11を形成し、多数のエレメント11が互いに接触するように積層し、多板型熱交換器を形成する。そして、各エレメント11の内部を形成する被加熱流体流路８に図２，図３に示す如く、被加熱流体７が夫々のヘッダー部９を介して波の稜線方向に流通する。この被加熱流体流路８は、各波形金属板１，２の断面の幅の狭い位置の凹溝で形成されている。   As shown in FIG. 1 (A), the corrugated metal plates 1 and 2 have a large number of waves having the same wave height (corresponding to the amplitude of the wave) arranged in parallel. Is formed so that the width of the peak 3 is smaller than the width of the valley 4 adjacent thereto. The corrugated metal plate 1 and the corrugated metal plate 2 adjacent to the corrugated metal plate 1 are in contact with each other in opposite directions. And the ridgeline 8a and ridgeline 8b of the peak part 3 in the corrugated metal plates 1 and 2 are each formed in a meandering shape as shown in FIG. 1 (B), and their phases in the plane are shifted from each other by 180 degrees. Are arranged to intersect. Then, an element 11 is formed by a pair of upper and lower corrugated metal plates 1 and 2 and laminated so that a large number of elements 11 are in contact with each other to form a multi-plate heat exchanger. Then, as shown in FIGS. 2 and 3, the heated fluid 7 circulates in the ridge line direction of the wave through the respective header portions 9 in the heated fluid flow path 8 that forms the inside of each element 11. The heated fluid channel 8 is formed by a concave groove at a position where the width of the cross section of each corrugated metal plate 1 or 2 is narrow.

被加熱流体流路８内に流入した被加熱流体７は、その稜線８ａ，稜線８ｂに沿って蛇行状に流通し、一方のヘッダー部９から他方のヘッダー部９に流通して、それが外部に導かれる。また、排ガス５が各エレメント11間に流通し、それらの間に形成された排ガス流路６内を蛇行状に流通し、その排ガス５と被加熱流体７との間に熱交換が行われる。この排ガス流路６は、各波形金属板１，２の波の断面の幅の広い位置の凹溝側である。
なお、この例ではエレメント11は帯状金属板を波形に曲折し、図２の如くその端部で折り返し、それにより一対の波形金属板１，２を対向させ、その周縁部を気密に接合してエレメント11を形成し、エレメント11の端部に出入口10を開口したものである。 The heated fluid 7 that has flowed into the heated fluid flow path 8 circulates in a meandering manner along the ridgeline 8a and ridgeline 8b, and circulates from one header portion 9 to the other header portion 9, which is externally connected. Led to. Further, the exhaust gas 5 flows between the elements 11 and flows in a meandering manner in the exhaust gas flow path 6 formed between them, and heat exchange is performed between the exhaust gas 5 and the fluid 7 to be heated. The exhaust gas flow path 6 is on the concave groove side at a position where the wave cross section of each corrugated metal plate 1, 2 is wide.
In this example, the element 11 bends the strip-shaped metal plate into a corrugated shape and folds back at its end as shown in FIG. 2, thereby causing the pair of corrugated metal plates 1 and 2 to face each other and the peripheral edge thereof to be airtightly joined. An element 11 is formed, and an entrance / exit 10 is opened at an end of the element 11.

なお、これに代えて、多数の波形金属板１，２をバー材を介して積層し、内部に偏平流路を形成してもよい。この場合バー材は、多数の波形金属板１，２の縁部にそれぞれ配置される。
なお、山部３の幅と谷部４の幅との比率は各種設計仕様に応じて変更できる。即ち、排ガス５、被加熱流体７の各流量および圧力等に応じて、それぞれの流路の最適な圧力損失になるように設計される。 Instead of this, a number of corrugated metal plates 1 and 2 may be laminated via a bar material to form a flat flow path inside. In this case, the bar material is disposed at the edge of each of the numerous corrugated metal plates 1 and 2.
In addition, the ratio of the width | variety of the peak part 3 and the width | variety part 4 can be changed according to various design specifications. That is, it is designed so as to have an optimum pressure loss in each flow path according to the flow rate and pressure of the exhaust gas 5 and the heated fluid 7.

また、各エレメント11の出入口10へは、図示しないタンクを介して被加熱流体７が供給される。
なお、波形金属板１，２の各波の断面は図１に示す如く、矩形波状であっても、サインカーブ状であっても、或いは他の形状であってもよい。
波形の山部３の幅Ｌ1 と谷部４の幅Ｌ2 との比は、一例として１：1.2 〜１：2.5 とすることができる。 The fluid to be heated 7 is supplied to the entrance / exit 10 of each element 11 via a tank (not shown).
In addition, as shown in FIG. 1, the cross section of each wave of the corrugated metal plates 1 and 2 may be a rectangular wave shape, a sine curve shape, or another shape.
The ratio between the width L 2 of the width L 1 and the valley portion 4 of the ridges 3 of the waveform is 1 as an example: 1.2 to 1: can be 2.5.

本発明の多板型熱交換器の要部横断面図および平面図。The principal part cross-sectional view and top view of the multi-plate heat exchanger of this invention. 同熱交換器の要部斜視略図。The principal part schematic perspective view of the heat exchanger. 同熱交換器の平面図。The top view of the same heat exchanger.

符号の説明Explanation of symbols

１ 波形金属板
２ 波形金属板
３ 山部
４ 谷部
５ 排ガス
６ 排ガス流路
７ 被加熱流体 DESCRIPTION OF SYMBOLS 1 Corrugated metal plate 2 Corrugated metal plate 3 Peak part 4 Valley part 5 Exhaust gas 6 Exhaust gas flow path 7 Heated fluid

８ 被加熱流体流路
８ａ 稜線
８ｂ 稜線
９ ヘッダー部
10 出入口
11 エレメント
12 接合用フランジ部
8 Heated fluid flow path 8a Ridge line 8b Ridge line 9 Header
10 doorway
11 elements
12 Joint flange

Claims (3)

夫々多数の波の並列した波形金属板(1)(2)が多数等間隔に積層され、
各波形金属板(1)(2)の一方側と他方側とに異なる流体が流通して、両流体間に熱交換が行われる多板型熱交換器において、
その波形金属板(1)(2)は、その各波の断面の山部(3) の幅と、その山部(3) に隣接する谷部(4) の幅とのうち、一方が他方より大とされた一組の基本波形を形成し、その基本波形が周期的に多数並列されてなり、
前記幅を大とした位置の凹溝内に加熱用の排ガス(5) を流通させる排ガス流路(6) が設けられると共に、小とした位置の凹溝内に被加熱流体(7) を流通させる被加熱流体流路(8) が設けられたことを特徴とする多板型熱交換器。 Corrugated metal plates (1) and (2) in which a large number of waves are arranged in parallel are laminated at equal intervals,
In the multi-plate heat exchanger in which different fluids are circulated on one side and the other side of each corrugated metal plate (1) (2) and heat exchange is performed between both fluids,
The corrugated metal plate (1) (2) has one of the width of the crest (3) of the cross section of each wave and the width of the trough (4) adjacent to the crest (3). A larger set of basic waveforms is formed, and the basic waveforms are periodically arranged in parallel.
An exhaust gas flow path (6) for flowing the exhaust gas for heating (5) is provided in the recessed groove at the position where the width is increased, and the heated fluid (7) is distributed in the recessed groove at the position where the width is reduced. A multi-plate heat exchanger characterized in that a heated fluid channel (8) is provided. 請求項１において、
互いに対向する一対の波形金属板(1)(2)は、夫々前記幅を大とした前記凹溝の内面どうしが対向すると共に、小とした前記凹溝の内面どうしが対向するように形成した多板型熱交換器。 In claim 1,
A pair of corrugated metal plates (1) and (2) facing each other are formed so that the inner surfaces of the concave grooves having the large width are opposed to each other, and the inner surfaces of the small concave grooves are opposed to each other. Multi-plate heat exchanger. 請求項１または請求項２において、
前記波形金属板(1)(2)の各波の稜線(8a)(8b)が蛇行状に形成され、対向する各稜線(8a)(8b)が互いに交差するように配置された多板型熱交換器。
In claim 1 or claim 2,
The corrugated metal plates (1) and (2) have ridge lines (8a) and (8b) formed in a meandering manner, and the ridge lines (8a) and (8b) facing each other are arranged so as to intersect each other. Heat exchanger.
JP2003435535A 2003-12-26 2003-12-26 Multiplate heat exchanger Pending JP2005195190A (en)

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CN100545571C (en) * 2005-09-09 2009-09-30 臼井国际产业株式会社 Tube Sheet of Heat Exchanger
CN102997741A (en) * 2012-11-30 2013-03-27 艾普尔换热器(苏州)有限公司 Heat exchanger fin and manufacturing method thereof
KR101303234B1 (en) * 2011-08-08 2013-09-04 김태식 Heat exchanger for exhaust-heat recovery
WO2014069175A1 (en) * 2012-10-30 2014-05-08 カルソニックカンセイ株式会社 Heat exchanger tube
TWI502160B (en) * 2011-06-01 2015-10-01 Alstom Technology Ltd Heating element undulation patterns
JP2016128747A (en) * 2016-03-15 2016-07-14 カルソニックカンセイ株式会社 Tube for heat exchanger
KR101857045B1 (en) 2016-06-01 2018-05-15 주식회사 코렌스 Gas tube for EGR cooler
CN110088455A (en) * 2016-12-26 2019-08-02 株式会社科伦斯 Cooler for recycled exhaust gas corrugated plate

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100545571C (en) * 2005-09-09 2009-09-30 臼井国际产业株式会社 Tube Sheet of Heat Exchanger
JP2007093137A (en) * 2005-09-29 2007-04-12 Matsushita Electric Ind Co Ltd Heat exchanger
JP2007198660A (en) * 2006-01-25 2007-08-09 Tokyo Roki Co Ltd Plate stack type heat exchanger
TWI502160B (en) * 2011-06-01 2015-10-01 Alstom Technology Ltd Heating element undulation patterns
KR101303234B1 (en) * 2011-08-08 2013-09-04 김태식 Heat exchanger for exhaust-heat recovery
WO2014069175A1 (en) * 2012-10-30 2014-05-08 カルソニックカンセイ株式会社 Heat exchanger tube
JP2014088994A (en) * 2012-10-30 2014-05-15 Calsonic Kansei Corp Tube for heat exchanger
CN104769381A (en) * 2012-10-30 2015-07-08 康奈可关精株式会社 Heat exchanger tube
CN102997741A (en) * 2012-11-30 2013-03-27 艾普尔换热器(苏州)有限公司 Heat exchanger fin and manufacturing method thereof
JP2016128747A (en) * 2016-03-15 2016-07-14 カルソニックカンセイ株式会社 Tube for heat exchanger
KR101857045B1 (en) 2016-06-01 2018-05-15 주식회사 코렌스 Gas tube for EGR cooler
CN110088455A (en) * 2016-12-26 2019-08-02 株式会社科伦斯 Cooler for recycled exhaust gas corrugated plate
CN110088455B (en) * 2016-12-26 2020-11-13 株式会社科伦斯 Corrugated sheet for EGR cooler

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