JPS59225294A - Heat exchanger - Google Patents

Heat exchanger

Info

Publication number
JPS59225294A
JPS59225294A JP10207783A JP10207783A JPS59225294A JP S59225294 A JPS59225294 A JP S59225294A JP 10207783 A JP10207783 A JP 10207783A JP 10207783 A JP10207783 A JP 10207783A JP S59225294 A JPS59225294 A JP S59225294A
Authority
JP
Japan
Prior art keywords
heat exchanger
heat
exhaust gas
jacket
water
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
JP10207783A
Other languages
Japanese (ja)
Other versions
JPH0372909B2 (en
Inventor
Shigeo Suzuki
茂夫 鈴木
Tatsuo Fujita
龍夫 藤田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
KOGATA GAS REIBOU GIJUTSU KENKYU KUMIAI
Original Assignee
KOGATA GAS REIBOU GIJUTSU KENKYU KUMIAI
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 KOGATA GAS REIBOU GIJUTSU KENKYU KUMIAI filed Critical KOGATA GAS REIBOU GIJUTSU KENKYU KUMIAI
Priority to JP10207783A priority Critical patent/JPS59225294A/en
Publication of JPS59225294A publication Critical patent/JPS59225294A/en
Publication of JPH0372909B2 publication Critical patent/JPH0372909B2/ja
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/22Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates

Landscapes

  • 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

PURPOSE:To obtain a heat exchanger which is surpassing in heat exchanging performance and muffling performance and is easy to be scaled up, as well as to simplify the system constitution of a muffler and a heat exchanger, by surrounding the outside of a heat exchanger with a water jacket, by protruding part of partition plate, which partitions the inside space of a heat exchanger into a plural number, to the flowing direction of fluid which flows through the inside space of a heat exchanger, and by providing a plurality of pores to the protruded part. CONSTITUTION:A plurality of heat transfer tubes 6 and partition plates 7, 8 and 9 are provided in the space 5 inside a water jacket 4, and a water outlet port 11 is provided to a header 10. A header 12 is communicated with the jacket 4 by a water hole 13, and a water conduit 14 is provided to the jacket 4. A protruded part 15 is provided to one of parts of partition plates 7, 8 and 9, at least, in the same direction as of an exhaust gas flow as shown by dashed lines, and a plurality of small holes 16 are punched on the protruded part 15. The small holes 16 are punched on the circumference of a protruded part 15, which is constituted so that the exhaust gas flow 17 being injected from small holes 16 collides against the inner surface of a water jacket. By such an arrangement, heat is exchanged on the inner surface of a jacket and the surface of heat transfer tubes while the exhaust gas is flowing through the space 5.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、エンジン等の排ガスからの熱回収装置に利用
される熱交換器に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a heat exchanger used in a device for recovering heat from exhaust gas from an engine or the like.

従来例の構成とその問題点 近年の省エネルギー志向から、エンジン等の熱源からの
排ガスからの熱をも回収し、トータルのエネルギー効率
を高めようとする、第1図に示すようなシステムが考え
られ稼動している。このシステムは、エンジンからの軸
出力を動力として取シ出し、排熱を熱交換器1で回収し
、消音器2を通して排出するシステムである。従来この
ようなシステムでは、エンジン3からの排熱回収を行な
う熱交換器1と消音器2は別々に設けられておシ、それ
故システムとして繁雑になるとともに、消音器本体から
の透過音が大きく、そのために消音器質量を大きくしな
ければならないなどの欠点を有している。
Conventional configurations and their problems With the recent trend toward energy conservation, a system like the one shown in Figure 1 has been considered, which attempts to improve total energy efficiency by recovering heat from exhaust gas from heat sources such as engines. It is in operation. This system extracts the shaft output from the engine as power, recovers exhaust heat with a heat exchanger 1, and discharges it through a muffler 2. Conventionally, in such a system, the heat exchanger 1 and the muffler 2, which recover exhaust heat from the engine 3, are provided separately, which makes the system complicated and also causes noise transmission from the muffler body. It is large, and therefore has the disadvantage that the mass of the muffler must be increased.

また、従来の排熱回収用の熱交換器とし2ては第2図お
よび第3図に示すようないわゆるフィンタイプやプレー
ト式などの形式が多いが、エンジンからの流れは脈動流
であシ、こ、れらの形式ではこの脈動流の効果を充分に
生かせる構成となっていない。また、排ガスからの熱回
収の効率を上げると排ガスが凝縮し、フィン表面やプレ
ート表面の腐食が進行されるが、フィンの板厚が薄いた
めに早期に熱交換性能が降下したシ、プレート式ではプ
レート空間に凝縮水が堆積し腐食を進行させるなどの欠
点を有している。またプレート式ではプレート空間で燃
焼排ガス流の急縮小、急拡大がなされ若干の減音効果は
期待されるものの、急縮小。
In addition, conventional heat exchangers 2 for exhaust heat recovery are often of the so-called fin type or plate type as shown in Figures 2 and 3, but the flow from the engine is a pulsating flow. , these types do not have a structure that can fully utilize the effect of this pulsating flow. In addition, increasing the efficiency of heat recovery from exhaust gas condenses the exhaust gas and accelerates corrosion on the fin and plate surfaces. However, this method has disadvantages such as condensed water depositing in the plate space and promoting corrosion. In addition, in the plate type, the combustion exhaust gas flow rapidly contracts and expands in the plate space, and although a slight sound reduction effect is expected, it rapidly decreases.

急拡大の割合が小さいためにその効果は小さい。The effect is small because the rate of rapid expansion is small.

発明の目的 本発明は上記欠点に鑑み、消音器と熱交換器を一体にし
てシステム構成が簡単になるようにするとともに熱交換
性能を向上させ、消音性能が優れ、かつ熱交換器、消音
器のスケールアップが簡単な熱交換器を提供するもので
ある。
Purpose of the Invention In view of the above-mentioned drawbacks, the present invention integrates a silencer and a heat exchanger to simplify the system configuration, improves heat exchange performance, and provides a heat exchanger and a silencer that have excellent silencing performance. This provides a heat exchanger that is easy to scale up.

発明の構成 本発明は被加熱流体の入ったウォータージャクノドで外
側を囲み、その内部空間を複数に分割する仕切板を設け
、その仕切板は少なくともその一部を内部空間を流れる
流体の流れ方向に突出させて、その突出部に複数の小孔
を設けているものであシ、さらに、それらの内部空間に
被加熱流体が通過する伝熱管を設けている。
Structure of the Invention The present invention surrounds the outside with a water jack containing a fluid to be heated, and is provided with a partition plate that divides the internal space into a plurality of parts, and the partition plate divides at least a portion of it in the flow direction of the fluid flowing through the internal space. A plurality of small holes are provided in the projecting portion, and a heat transfer tube through which the fluid to be heated passes is provided in the internal space.

実施例の説明 以下本発明の一実施例について図面を参照しながら説明
する。第4図は本発明の一実施例の熱交換器を示す図で
ある二4はウォータージャケットであシ、ウォータージ
ャケット4の内側空間6には複数の伝熱管6と仕切板7
,8.9が設けられておシ、ヘッダー10には水排出管
11ノ;設けられ、ヘッダー12は水孔13によってウ
ォータージャケット4と連通され、さらにウォータージ
ャケット4には水導入管14が設けられている。仕切板
7,8.9には少なくともその一部に、図の破線で示す
排ガス流と同じ方向に突出させた突出部16が設けられ
、その突出部16には、複数の小孔16が穿たれている
。本実施例ではこの小孔16は突出部15の円周上に穿
たれ小孔16より噴出される排ガス流17が、ウォータ
ージャケット内面に衝突するように構成している0両端
の空間18.19に排ガス導入口20と排ガス排出口2
1が設けられている。
DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 4 is a diagram showing a heat exchanger according to an embodiment of the present invention. 24 is a water jacket, and the inner space 6 of the water jacket 4 has a plurality of heat transfer tubes 6 and a partition plate 7.
. It is being At least a part of the partition plates 7, 8.9 is provided with a protrusion 16 that protrudes in the same direction as the exhaust gas flow indicated by the broken line in the figure, and the protrusion 16 is provided with a plurality of small holes 16. It's dripping. In this embodiment, this small hole 16 is bored on the circumference of the protrusion 15, and spaces 18 and 19 at both ends are configured so that the exhaust gas flow 17 ejected from the small hole 16 collides with the inner surface of the water jacket. Exhaust gas inlet 20 and exhaust gas outlet 2
1 is provided.

次にその動作を説明する。まずカル熱される流体は14
の水導入管からウォータージャケット4を通シ、水孔1
3からヘッダー12に入り、各伝熱管6に分岐されて流
れ、ヘッダー10に入り、水排出管11より排出される
。一方加熱流体であるエンジンなどの熱源からの排ガス
は排ガス導入口2oよシ空間18に入り、仕切板7に設
けた突出部16の小孔16より円周方向に噴出され、さ
らに次の仕切板に設けられた突出部22に入シ小孔23
より噴出するものであり、このように排ガスが流れる間
にウォータージャケット内面や、伝熱管表面で熱父換さ
れるものである。
Next, its operation will be explained. First, the fluid to be cal-heated is 14
Pass the water jacket 4 through the water inlet pipe, and the water hole 1.
The water enters the header 12 from 3, branches into each heat transfer tube 6, flows, enters the header 10, and is discharged from the water discharge pipe 11. On the other hand, exhaust gas from a heat source such as an engine, which is a heating fluid, enters the space 18 through the exhaust gas inlet 2o, is ejected in the circumferential direction from the small hole 16 of the protrusion 16 provided in the partition plate 7, and is further ejected from the next partition plate. The small hole 23 enters the protrusion 22 provided in the
During the flow of the exhaust gas, heat is exchanged on the inner surface of the water jacket and on the surface of the heat exchanger tube.

以上のように本実施例によれば、エンジンから排ガス導
入口2oに導かれた排ガスは第1の空間18で急拡大し
、仕切板7の突出部16に入る時に急縮小され、さらに
突出部16の小孔16から円周方向に噴出される時に急
拡大されるといった複数空間での繰返しによって、いわ
ゆる膨張型タイプの消音効果を発揮するものであってエ
ンジンなどからの騒音が大巾に減少される。また排ガス
空間はその外側を質量の大きいウォータージャケット4
で囲んであるので、透過音を減少できるものである。ま
た、このように複数の空間をつくるには単に仕切板を伝
熱管あるいはウォータージャケット内壁に適当な距離で
固着させるだけで可能であるし、熱源の騒音特性に応じ
て任意に空間の大きさを変える事ができる。
As described above, according to this embodiment, the exhaust gas led from the engine to the exhaust gas inlet 2o rapidly expands in the first space 18, rapidly contracts when entering the protrusion 16 of the partition plate 7, and further By repeatedly expanding in multiple spaces when ejected from 16 small holes 16 in the circumferential direction, it exhibits a so-called expansion-type noise reduction effect, and noise from engines etc. is greatly reduced. be done. Also, the outside of the exhaust gas space is covered with a water jacket 4 with a large mass.
Since it is surrounded by , it is possible to reduce transmitted sound. In addition, creating multiple spaces like this can be done simply by fixing partition plates to the heat exchanger tubes or the inner wall of the water jacket at an appropriate distance, or the size of the spaces can be adjusted arbitrarily depending on the noise characteristics of the heat source. It can be changed.

本実施例では突出部に設けた小孔を円周方向に噴出する
ようにしであるが、このようにすると、小孔から噴出す
る排ガスが伝熱管あるいはウォータージャケット内壁に
衝突する効果によって熱伝達性能が大巾に増加する。ま
た排気量、排熱量の異なるエンジンなどに用いる場合に
は、全体径をこのままにして、長さを変え、空間の大き
さを変えるだけで簡単にスケールアップできるし、伝熱
面積の増減も可能である。
In this embodiment, the small hole provided in the protruding part is arranged to emit gas in the circumferential direction, but by doing so, the exhaust gas ejected from the small hole collides with the heat transfer tube or the inner wall of the water jacket, resulting in improved heat transfer performance. increases dramatically. In addition, when used in engines with different displacements and heat outputs, it is possible to scale up easily by leaving the overall diameter unchanged and changing the length and space size, and it is also possible to increase or decrease the heat transfer area. It is.

なお本実施例では仕切板に設けた突出部ははeマ中心に
位置させており、突出部の先端は閉じているが、突出部
を中心よシずらし、相隣る仕切板で互い違いにして、突
出部先端にも小孔を設けて、仕切板で排ガス噴流が衝突
するようにしても熱伝達性能が増加する。またエンジン
などの排ガスから熱回収すると凝縮水が発生し、熱交換
器表面を腐食する事があるが、熱交換器を垂直口に立て
る事により発生した凝縮水を小孔よりすばやく滴下せし
めて回収でき、腐食を抑制する事ができる。
In this example, the protrusion provided on the partition plate is located at the center of the e-mail, and the tip of the protrusion is closed, but the protrusion is shifted from the center and alternated between adjacent partition plates. The heat transfer performance is also increased by providing a small hole at the tip of the protrusion so that the exhaust gas jet collides with the partition plate. Also, when heat is recovered from exhaust gas from an engine, etc., condensed water is generated and can corrode the surface of the heat exchanger, but by standing the heat exchanger vertically, the condensed water can be quickly dripped from small holes and recovered. It is possible to suppress corrosion.

発明の効果 本発明の熱交換器においては、消音器一体型の熱交換器
が簡単な構成でつくられるととjに、音源の騒音特性に
応じて簡単に対応できて減音効果を増大させ、さらに熱
源のスケールアップにも簡単に対応できる。またエンジ
ンなどの排ガスの脈動効果を充分に活用して伝熱性能が
向上するものである。
Effects of the Invention In the heat exchanger of the present invention, since the heat exchanger with an integrated muffler is manufactured with a simple structure, it can be easily adapted to the noise characteristics of the sound source, increasing the sound reduction effect. Furthermore, it is easy to scale up the heat source. Furthermore, the heat transfer performance is improved by fully utilizing the pulsating effect of exhaust gas from the engine, etc.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は従来の排熱回収熱交換器を設けたエンジンシス
テムの概略図、第2図は従来のフィンタイプ熱交換器の
断面図、第3図は従来のプレートタイプ熱交換器の断面
図、第4図は本発明の一実施例の熱交換器の断面図、第
6図は第4図のA−A′断面図である。 4・・・・・・ウォータージャケット、6・・・・・・
内側空間、6・・・・・・伝熱管、7,8.9・・・・
・・仕切板、10.12・・・・・・ヘッダー、11・
・・・・・水排出管、15・・・・・・突出部、17・
・・・・・排ガス流、21・・・・・・排ガス排出口。 代理人の氏名 弁理士 中 尾 敏 男 ほか1名第1
図 第2図 第3図 予 第4図 第5図
Figure 1 is a schematic diagram of an engine system equipped with a conventional exhaust heat recovery heat exchanger, Figure 2 is a sectional view of a conventional fin type heat exchanger, and Figure 3 is a sectional view of a conventional plate type heat exchanger. , FIG. 4 is a sectional view of a heat exchanger according to an embodiment of the present invention, and FIG. 6 is a sectional view taken along line A-A' in FIG. 4...Water jacket, 6...
Inner space, 6... Heat exchanger tube, 7, 8.9...
...Partition plate, 10.12...Header, 11.
...Water discharge pipe, 15...Protrusion, 17.
...Exhaust gas flow, 21...Exhaust gas outlet. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 2 Figure 3 Figure 4 Figure 5

Claims (2)

【特許請求の範囲】[Claims] (1)外側をウォータージャケットで囲まれた被加熱流
体の通過する内部空間に、前記被加熱流体の通過する複
数の伝熱管を設け、前記内部空間を流れる加熱流体の流
れ方向に少なくとも一部を突出させた突出部と前記突出
部に前記加熱流体が前記伝熱管に衝突するように噴出さ
れる複数の小孔とを設けた仕切板により前記内部空間を
前記仕切板で複数に分割したことを特徴とする熱交換器
(1) A plurality of heat transfer tubes through which the fluid to be heated passes is provided in an internal space surrounded by a water jacket on the outside and through which the fluid to be heated passes, and at least a portion of the tubes is provided in an internal space through which the fluid to be heated passes. The interior space is divided into a plurality of parts by a partition plate having a protruding part and a plurality of small holes through which the heating fluid is ejected so as to collide with the heat transfer tube in the protruding part. Features of heat exchanger.
(2)突出部を仕切板中央より偏心させて設け、隣接す
る前記仕切板相互において前記突出部の位置が相違する
ことを特徴とする特許請求の範囲第1項記載の熱交換器
(2) The heat exchanger according to claim 1, wherein the protruding portion is provided eccentrically from the center of the partition plate, and the positions of the protruding portion are different between adjacent partition plates.
JP10207783A 1983-06-07 1983-06-07 Heat exchanger Granted JPS59225294A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10207783A JPS59225294A (en) 1983-06-07 1983-06-07 Heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10207783A JPS59225294A (en) 1983-06-07 1983-06-07 Heat exchanger

Publications (2)

Publication Number Publication Date
JPS59225294A true JPS59225294A (en) 1984-12-18
JPH0372909B2 JPH0372909B2 (en) 1991-11-20

Family

ID=14317705

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10207783A Granted JPS59225294A (en) 1983-06-07 1983-06-07 Heat exchanger

Country Status (1)

Country Link
JP (1) JPS59225294A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986349A (en) * 1987-09-30 1991-01-22 Aisin Seiki Kabushiki Kaisha Heat exchanger
WO2006030526A1 (en) * 2004-09-15 2006-03-23 Nomura Reinetsu Yugengaisha Heat exchanger and superheated steam generating device using the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103776281B (en) * 2012-02-12 2016-01-13 枣庄利能热水器厂 Header heating tube binary channels heat transfer heat exchanger and manufacture craft thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986349A (en) * 1987-09-30 1991-01-22 Aisin Seiki Kabushiki Kaisha Heat exchanger
WO2006030526A1 (en) * 2004-09-15 2006-03-23 Nomura Reinetsu Yugengaisha Heat exchanger and superheated steam generating device using the same
US7823543B2 (en) 2004-09-15 2010-11-02 Nomura Reinetsu Yugengaisha Heat exchanging apparatus and superheated steam generating apparatus using the same

Also Published As

Publication number Publication date
JPH0372909B2 (en) 1991-11-20

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