JPS6026115A - Heat exchanger - Google Patents
Heat exchangerInfo
- Publication number
- JPS6026115A JPS6026115A JP58133170A JP13317083A JPS6026115A JP S6026115 A JPS6026115 A JP S6026115A JP 58133170 A JP58133170 A JP 58133170A JP 13317083 A JP13317083 A JP 13317083A JP S6026115 A JPS6026115 A JP S6026115A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- pipe
- heat exchanger
- water
- partition plate
- 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
Links
- 238000005192 partition Methods 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 24
- 239000007789 gas Substances 0.000 description 39
- 230000000694 effects Effects 0.000 description 6
- 238000011084 recovery Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 210000004709 eyebrow Anatomy 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F27/00—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus
- F28F27/02—Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N5/00—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy
- F01N5/02—Exhaust or silencing apparatus combined or associated with devices profiting by exhaust energy the devices using heat
-
- 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
- F28F13/10—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by imparting a pulsating motion to the flow, e.g. by sonic vibration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/02—Engines characterised by their cycles, e.g. six-stroke
- F02B2075/022—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle
- F02B2075/027—Engines characterised by their cycles, e.g. six-stroke having less than six strokes per cycle four
-
- 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
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
-
- 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
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/224—Longitudinal partitions
-
- 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
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/226—Transversal partitions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
- F28F2265/28—Safety or protection arrangements; Arrangements for preventing malfunction for preventing noise
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、エンジン等の燃焼装置に用いられる排ガス熱
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 an exhaust gas heat exchanger used in a combustion device such as an engine.
従来例の構成とその問題点
近年、省エネルギー動向を反映して、エンジン等の排ガ
スの熱をも回収し、総合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ており、この
システムはエンジン１からの軸出力を動力として取り出
し、排熱を熱交換器２で回収し、マフラ３を通して、排
出するものである。しかしながら、このようなシステム
では、エンジン１からの排熱回収を行なう熱交換器２と
マフラ３は、別々に設けられているため、システムとし
て複雑になるとともにマフラ３本体からの透過音が犬き
く、そのためにマフラ３を太きくしなければならない等
の欠点があった。寸だ、従来の排熱回収用の熱交換器と
しては第２図に示すようなフィンタイプのものが多いが
、エンジンからの排ガスの流れは脈動流であり、このよ
うな形式では脈動流の効果を十分に生かぜない。さらに
、排熱回収効率を上げようとすると、排ガスが凝縮し、
フィン表面の腐食が進行したり、フィンの板厚が薄いた
めに、急速に、熱交換性能か低下したりするというよう
な問題点があった。Conventional configuration and its problems In recent years, reflecting trends in energy conservation, systems such as the one shown in Figure 1 have been devised to improve overall energy efficiency by recovering heat from exhaust gas from engines, etc. This system extracts shaft output from an engine 1 as power, recovers waste heat in a heat exchanger 2, and exhausts it through a muffler 3. However, in such a system, the heat exchanger 2 that recovers exhaust heat from the engine 1 and the muffler 3 are provided separately, which makes the system complex and the sound transmitted from the muffler 3 body is very loud. However, there were drawbacks such as the need to make the muffler 3 thicker for this purpose. Most conventional heat exchangers for exhaust heat recovery are of the fin type as shown in Figure 2, but the flow of exhaust gas from the engine is a pulsating flow, and this type of heat exchanger has a pulsating flow. Not taking full advantage of the effect. Furthermore, when trying to increase the efficiency of exhaust heat recovery, the exhaust gas condenses,
There have been problems such as progressing corrosion on the fin surface and rapid deterioration of heat exchange performance due to the thinness of the fin plate.
発明の目的
本発明は従来の問題点に鑑み、低騒音高効率のマフラー
一体型排ガス熱交換器を提供することを目的とする。OBJECTS OF THE INVENTION In view of the conventional problems, an object of the present invention is to provide a muffler-integrated exhaust gas heat exchanger that is low in noise and highly efficient.
発明の構成
本発明は、被加熱流体の入−）だ氷室の内部に排ガス空
間を設け、その排ガス空間を仕切板により複数に分割し
、内側を被加熱流２体の通る伝熱管、外側も排ガス管と
する二！１１．眉を少なくとも一つ、仕切板に対し貫通
させる構成とした熱交換器であり、さらに、排ガス管の
長さを任意に変化させた構成をも対象とするものである
。Structure of the Invention The present invention provides an exhaust gas space inside an ice chamber into which a fluid to be heated is input, and divides the exhaust gas space into a plurality of parts by partition plates. Two exhaust gas pipes! 11. This heat exchanger has a structure in which at least one eyebrow penetrates a partition plate, and is also intended for a structure in which the length of the exhaust gas pipe is arbitrarily changed.
実施例の説明
第３図は本発明の熱交換器の一実施例を示すものである
。熱交換器はその外側を水室４で囲い水室４の内部に排
ガス空間５を設けている。DESCRIPTION OF EMBODIMENTS FIG. 3 shows an embodiment of the heat exchanger of the present invention. The outside of the heat exchanger is surrounded by a water chamber 4, and an exhaust gas space 5 is provided inside the water chamber 4.
そして排ガス空間５は複数の仕切板６により分割されて
おり、また、水室４には水導入管７が設けられており、
ヘッダー８は水孔９によって水室４と連通さｎ、ヘッダ
ー１０には水排出管１１が取りつけられている。名らに
、伝熱管１２が仕切板θを貫通し、ヘッダー８とヘッダ
ー１０を連通している。そして仕切板６を貫通する部分
においては、内側を伝熱管１２、外側を排ガス管１３と
する二重管となっており、排ガス管１３の長さは、任意
に変化できる。捷た、Ｊｄｌガス空間５には排ガス尋人
管１４及び拶１ガス４１ｒ出管１６が設けられている。The exhaust gas space 5 is divided by a plurality of partition plates 6, and the water chamber 4 is provided with a water introduction pipe 7.
The header 8 communicates with the water chamber 4 through a water hole 9, and a water discharge pipe 11 is attached to the header 10. Specifically, the heat exchanger tubes 12 pass through the partition plate θ and communicate the headers 8 and 10. The portion penetrating the partition plate 6 is a double pipe with a heat transfer tube 12 on the inside and an exhaust gas pipe 13 on the outside, and the length of the exhaust gas pipe 13 can be changed arbitrarily. The discharged JDL gas space 5 is provided with an exhaust gas pipe 14 and an outlet pipe 16 for the first gas 41r.
次に、その作動についての説明を行なう。１ず、被加熱
流体は水導入管Ｔから氷室４を通り、水孔９からヘッダ
ー８に入り、伝熱管１２に分岐されて流れ、ヘッダー１
０に介して水排出管１１より排出される。一方、加熱流
体であるエンジン等からの扶ガスは、排ガス導入管１４
より、排ガス空間５に入り、その後、二重管を形成して
いる排ガス管１３内を通過していき、排ガス排出管１５
からυｌ出される。この際、排ガスが水室４内面や伝熱
管１２に、直接、衝突したり二重管内を通過したりする
ことにより、効果的に熱交換を行なうものである。そし
て、排ガス空間５は仕切板６により分割されているが、
この細分された空間に対し排ガス管１３の長さを変化さ
せ排ガス管１３の開口端と仕切板６の距離を小さくする
ことにより、排ガスが空間を素通りすることなく仕切板
６に衝突し、上流側に迂回するため、熱交換及び減音性
能を向上させることができる。また、本実施例によれば
排ガスが排ガス空間５に入り、二重管を構成する排ガス
管１３に入りこむが、ここで、流れが急縮小され、膨張
形のマフラを形成しさらに、排ガス空間６が複数に分割
されていることにより、多段膨張形のマフラ効果を成す
ものである。そして、排ガス管１３が各空間に突出して
いるため、マフラとしても内部挿入管形の減音効果を達
成することができ、排ガス管１３の長さを変えることに
よってエンジン等の騒音特性に応じた減音特性を形成す
ることもできる。徒だ減音特性を任意に変化できること
については、仕切板６の移動も効果的な手段となる。さ
らに、本実施例においては排ガス空間６の周囲を質量の
大きい水室４で囲っているため、遮音効果を高めること
ができる０１だ、熱交換性能に関しても二重管内の細い
空間も、排ガスが高速で通過するため、境界層の発達が
抑制され、顕著に熱伝達特性が向」ニする。しかも、排
ガスが排ガス空間内で迂回することにより、実質的な接
触面積を増やすこともできる。さらに排熱回収効率を上
げようとすると、凝縮水が発生し、熱交換器表面を腐食
さぜることもあったが、本実施例では流れが高速である
ため、凝縮水をためることなく外部に噴出させることが
でき、腐食を抑制することができる。寸だ、本実施例に
おいては共鳴穴１６を設け、共鳴形マフラも形成でき、
膨張形マフラでは減音しにくい低周波音の低減も可能と
なる。Next, the operation will be explained. 1. First, the fluid to be heated passes through the ice chamber 4 from the water introduction pipe T, enters the header 8 through the water hole 9, branches to the heat transfer tube 12, and flows through the header 1.
The water is discharged from the water discharge pipe 11 through the water pipe 11. On the other hand, the fuel gas from the engine, etc., which is a heating fluid, is transferred to the exhaust gas introduction pipe 14.
The gas enters the exhaust gas space 5, and then passes through the exhaust gas pipe 13 forming a double pipe, and the exhaust gas discharge pipe 15
υl is released from. At this time, the exhaust gas directly collides with the inner surface of the water chamber 4 and the heat transfer tube 12 or passes through the double tube, thereby effectively exchanging heat. Although the exhaust gas space 5 is divided by a partition plate 6,
By changing the length of the exhaust gas pipe 13 in this subdivided space and reducing the distance between the open end of the exhaust gas pipe 13 and the partition plate 6, the exhaust gas collides with the partition plate 6 without passing through the space, and the upstream Since the air is bypassed to the side, heat exchange and sound reduction performance can be improved. Further, according to this embodiment, the exhaust gas enters the exhaust gas space 5 and enters the exhaust gas pipe 13 forming a double pipe, but here, the flow is suddenly reduced to form an expansion type muffler, and furthermore, the exhaust gas space 6 Since the muffler is divided into a plurality of parts, it has a multi-stage expansion type muffler effect. Since the exhaust gas pipe 13 protrudes into each space, it is possible to achieve the sound reduction effect of an internally inserted pipe type as a muffler, and by changing the length of the exhaust gas pipe 13, it can be adjusted according to the noise characteristics of the engine, etc. It is also possible to create sound attenuation characteristics. Moving the partition plate 6 is also an effective means for arbitrarily changing the sound reduction characteristics. Furthermore, in this embodiment, since the exhaust gas space 6 is surrounded by the water chamber 4 with a large mass, the sound insulation effect can be enhanced.In terms of heat exchange performance, even the narrow space inside the double pipe allows the exhaust gas to Because it passes at high speed, the development of the boundary layer is suppressed, and heat transfer characteristics are significantly improved. Furthermore, by detouring the exhaust gas within the exhaust gas space, the substantial contact area can be increased. If we tried to further increase the waste heat recovery efficiency, condensed water would be generated and corrode the surface of the heat exchanger, but in this example, the flow is fast, so there is no accumulation of condensed water, and the heat exchanger surface is corroded. can be ejected, and corrosion can be suppressed. In this embodiment, a resonant hole 16 is provided, and a resonant muffler can also be formed.
It is also possible to reduce low-frequency sound, which is difficult to reduce with an expansion muffler.
発明の効果
以上、説明したように本発明の熱交換器は多段挿入管付
膨張形マフラの構成をとっているので優れた減音効果を
有し、エンジン等の異なる騒音特性に対しても容易に対
処できるものである。捷だ、境界層の発達を抑制するこ
とにより熱伝達特性を向」−でき、さらに排ガスを迂回
させることにより接触面積の増加を実現するものである
。さらにマフラ一体型の熱交換器構成をとっているため
、システムとしても簡素化が図れ、しかも、二重管構造
としているため熱交換器自体の小型化が可能となる。Effects of the Invention As explained above, the heat exchanger of the present invention has an expansion type muffler structure with multi-stage insertion tubes, so it has an excellent sound reduction effect, and can easily be applied to different noise characteristics such as engines. can be dealt with. By suppressing the development of the boundary layer, heat transfer characteristics can be improved, and by bypassing exhaust gas, the contact area can be increased. Furthermore, since the heat exchanger is configured with an integrated muffler, the system can be simplified, and the double-tube structure allows the heat exchanger itself to be downsized.
第１図は排熱回収熱交換器を設けたエンジンンステムの
概略図、第２図は従来のフィンタイプ熱交換器の構成図
、第３図は本発明の一実施例の熱交換器の構成図である
。
４ 水室、５・・・・−排ガス空間、６・ 仕切板、１
２・ 伝熱管、１３・・・ 排ガス管。
代理人の氏名 弁理士 中 尾 敏 男 はが１名第１
図
第２図
木
■
■
；
１排力“ス
・図
水
□□Ｌ−
１Fig. 1 is a schematic diagram of an engine stem equipped with an exhaust heat recovery heat exchanger, Fig. 2 is a configuration diagram of a conventional fin type heat exchanger, and Fig. 3 is a configuration of a heat exchanger according to an embodiment of the present invention. It is a diagram. 4 Water chamber, 5...-exhaust gas space, 6. Partition plate, 1
2. Heat exchanger tube, 13... Exhaust gas pipe. Name of agent: Patent attorney Toshio Nakao (1st person)
Figure 2 Tree ■ ■ ;
Claims (1)
前記排ガス空間を仕切板により、複数に分割し、内側を
伝熱管、外側を排ガス管とする二重管を、少なくとも一
本、前記仕切板に対し、貫通させ、前記二重管の排ガス
管部を前記分割して異なる排ガス空間に開放したことを
特徴とする熱交換器。An exhaust gas space is provided inside the ice chamber containing the heated fluid,
The exhaust gas space is divided into a plurality of parts by a partition plate, and at least one double pipe having a heat exchanger tube on the inside and an exhaust gas pipe on the outside is passed through the partition plate, and an exhaust gas pipe portion of the double pipe. A heat exchanger characterized in that the space is divided and opened to different exhaust gas spaces.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58133170A JPS6026115A (en) | 1983-07-20 | 1983-07-20 | Heat exchanger |
| DE19843419442 DE3419442A1 (en) | 1983-05-25 | 1984-05-24 | HEAT EXCHANGER |
| GB08413410A GB2143023B (en) | 1983-05-25 | 1984-05-25 | Heat exchanger |
| US06/827,210 US4621677A (en) | 1983-05-25 | 1986-02-04 | Heat exchanger for internal combustion engine exhaust, with noise suppressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58133170A JPS6026115A (en) | 1983-07-20 | 1983-07-20 | Heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6026115A true JPS6026115A (en) | 1985-02-09 |
| JPS6338525B2 JPS6338525B2 (en) | 1988-08-01 |
Family
ID=15098311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58133170A Granted JPS6026115A (en) | 1983-05-25 | 1983-07-20 | Heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6026115A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6264813U (en) * | 1985-10-14 | 1987-04-22 | ||
| WO2006030526A1 (en) * | 2004-09-15 | 2006-03-23 | Nomura Reinetsu Yugengaisha | Heat exchanger and superheated steam generating device using the same |
-
1983
- 1983-07-20 JP JP58133170A patent/JPS6026115A/en active Granted
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6264813U (en) * | 1985-10-14 | 1987-04-22 | ||
| JPH0332743Y2 (en) * | 1985-10-14 | 1991-07-11 | ||
| 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 |
|---|---|
| JPS6338525B2 (en) | 1988-08-01 |
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