JPH01155066A - Exhaust heat recovery system for engine - Google Patents
Exhaust heat recovery system for engineInfo
- Publication number
- JPH01155066A JPH01155066A JP62314997A JP31499787A JPH01155066A JP H01155066 A JPH01155066 A JP H01155066A JP 62314997 A JP62314997 A JP 62314997A JP 31499787 A JP31499787 A JP 31499787A JP H01155066 A JPH01155066 A JP H01155066A
- Authority
- JP
- Japan
- Prior art keywords
- heat
- engine
- cooling
- water
- heat recovery
- 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.)
- Pending
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 35
- 239000000498 cooling water Substances 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 239000000110 cooling liquid Substances 0.000 claims abstract description 10
- 230000017525 heat dissipation Effects 0.000 claims description 9
- 238000010521 absorption reaction Methods 0.000 claims description 7
- 239000012809 cooling fluid Substances 0.000 claims description 4
- 230000005855 radiation Effects 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 claims description 2
- 238000001816 cooling Methods 0.000 abstract description 10
- 239000006096 absorbing agent Substances 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003657 drainage water Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/14—Combined heat and power generation [CHP]
-
- 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
- Sorption Type Refrigeration Machines (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、比較的小出力のコーンエネレーションに利用
される水冷エンジンの排熱回収装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an exhaust heat recovery device for a water-cooled engine used for cone energy generation with relatively low output.
（従来の技術）
従来、上記装置としては例えば第４図に示すように、発
電機１を駆動する水冷エンジン２の冷却水ヲエンジン２
のつオータジ′ヤケント４、エンジン排気熱吸収器５の
吸熱部９、エンジン排熱回収器６の授熱部６ａ及び放熱
器７の放熱部７ａに循環されることにより、エンジン冷
却水がつオータンヤケソト４及びエンジン排気熱吸収器
５の吸熱部ってエンジンの排熱を吸収して昇温し、エン
ジン排熱回収器６でその受熱部１０を流れる熱回収液体
を加熱して昇温させ、放熱器７でその吸熱部１１を流れ
る冷却用流体により冷却されるように構成し、熱回収液
体を図外の給湯もしくは暖房用の熱負荷装置に循環供給
するとともに、冷却用流体をクーリングタワー１２等の
冷却手段に導くようにしたものが知られている。(Prior Art) Conventionally, as shown in FIG.
The engine cooling water is circulated through the engine exhaust heat absorber 4, the heat absorbing section 9 of the engine exhaust heat absorber 5, the heat transfer section 6a of the engine exhaust heat recovery device 6, and the heat dissipating section 7a of the radiator 7. 4 and the heat absorption part of the engine exhaust heat absorber 5 absorbs engine exhaust heat and raises the temperature, and the engine exhaust heat recovery unit 6 heats the heat recovery liquid flowing through the heat receiving part 10 to raise the temperature and radiate the heat. The heat recovery liquid is circulated and supplied to a heat load device for hot water supply or space heating (not shown), and the cooling fluid is supplied to a cooling tower 12 or the like. There are known devices that lead to a cooling means.
（発明が解決しようとする問題点）
上記ａｋのフージ゛エネレーションはエンジン冷却水の
循環系と冷却用流体の循環系とを分離しているために、
エンノン冷却水を直接クーリングタワーに導いて放熱さ
せる場合に生じやすいエンジン冷却水の洩れ、水質の劣
化等が無く、エンノンへの悪影響を防止できる利点を備
えているのであるが、パッケージの大きさに対する制限
が少ない大出力機に限られており、この構造をそのまま
小出力（例えば５０に田以下）のコーンエネレーション
に導入すると、出力の割りにはパンケージが太きいもの
になり、実用上に難点があった。(Problems to be Solved by the Invention) Since the above AK fuge energy system separates the engine cooling water circulation system and the cooling fluid circulation system,
It has the advantage of preventing engine cooling water leakage and water quality deterioration, which can occur when ennon cooling water is led directly to a cooling tower for heat dissipation, and can prevent negative effects on ennon, but there are restrictions on the size of the package. However, if this structure is directly introduced into a cone energy with a small output (for example, 50 or less), the pancage will be thick compared to the output, which is a practical problem. there were.
本発明は、エンジン冷却水とこれを冷却する流体が夫々
別の系統で流動される利点を生かしながらパッケージの
小型化を可能にして、小出力機にも適用できる水冷エン
ジ゛ンのダ１−熱回収装置を提供することを］］的とす
るものである。The present invention makes it possible to reduce the size of the package while taking advantage of the fact that the engine cooling water and the fluid that cools it flow in separate systems. The purpose of this invention is to provide a heat recovery device.
（問題点を解決するための手段）
−Ｊ−記目的を達成するための本発明特徴構成は、エン
ジンの冷却水をエンジンのつオークジャケット、エンジ
ン排熱回収器の授熱部及び放熱器の放熱部に循環させる
ことにより、エンジン冷却水がつオータノヤケットでエ
ンジンの排熱を吸収して昇温し、エンジン排熱回収器で
その受熱部を流れる熱回収液体を加熱して降温し、放熱
器でその吸熱部を流れる冷却用流体により冷却されるよ
うに構成したエンジンの七［熱回収装置において、エン
ジン排熱回収器の受熱部及び放熱器の吸熱部を共通の熱
交換用ケース内にそのケース内空間と区画して設けると
ともに、エンジン排熱回収器の授熱部及び放熱器の放熱
部を熱交換用ケースのケース内空間で形成上放熱器の吸
熱部に冷却用液体を通過させるように構成した点にある
。(Means for Solving the Problems) -J- The characteristic configuration of the present invention for achieving the object is to transfer engine cooling water to the oak jacket of the engine, the heat transfer part of the engine exhaust heat recovery device, and the radiator. By circulating the engine cooling water through the heat dissipation section, the exhaust heat of the engine is absorbed by the engine cooling water jacket and raised in temperature, and the engine exhaust heat recovery device heats the heat recovery liquid flowing through the heat receiving section and lowered the temperature. [In a heat recovery system, the heat receiving part of the engine exhaust heat recovery device and the heat absorbing part of the heat radiator are placed in a common heat exchange case. The heat transfer part of the engine exhaust heat recovery device and the heat radiation part of the radiator are formed in the case interior space of the heat exchange case, and the cooling liquid is allowed to pass through the heat absorption part of the heat radiator. The point is that it is structured as follows.
（作 用）
」−記構成によると、エンジン排熱回収器の熱交換用ケ
ースと、放熱器の熱交換用ケースとが共相＝３−
され、各熱交換用ケースを別個に設けて各熱交換用ケー
スにエンノン冷却水を循環させる場合に比較して、エン
ジン排熱回収器、放熱器及びこれらの間での配管の占め
るスペースが節減される。(Function) According to the configuration described in ``-'', the heat exchange case of the engine exhaust heat recovery device and the heat exchange case of the radiator are in common phase = 3-, and each heat exchange case is provided separately. Compared to the case where Ennon cooling water is circulated through the heat exchange case, the space occupied by the engine exhaust heat recovery device, the radiator, and the piping between them can be saved.
（発明の効果）
その結果、パッケージの小型コンパクト化が可能となり
、小型化が要求される小出力機にも充分適用できるよう
になった。(Effects of the Invention) As a result, it has become possible to make the package smaller and more compact, and it has become fully applicable to small-output machines that require miniaturization.
又、エンジン冷却水系と冷却用液体とが混合されない形
態をとっているので、放熱系の多様化が可能であり、例
えば従来のようなり−リングタワー型式、地下水を利用
した放熱、各種の設備排水を利用した放熱等を任意に利
用することがでとる利点がある。特に地下水や排水を利
用した放熱型式をとるとクーリングタワーなどの機器が
不要になるとともに、放熱ファンによる騒音もなくすこ
とかできる利点がある。In addition, since the engine cooling water system and the cooling liquid are not mixed, it is possible to diversify the heat dissipation system, such as the conventional ring tower type, heat dissipation using underground water, and various types of equipment drainage. There is an advantage of being able to use heat dissipation using as desired. In particular, a heat dissipation type that uses underground water or drainage water has the advantage of not only eliminating the need for equipment such as cooling towers, but also eliminating the noise caused by heat dissipation fans.
（実 施 例）
以下、本発明の実施例を図面に基づいて説明する〜
一４＝
第１図は本発明に係る水冷エンジンの七ｒ熱回収装置の
系統図を示しており、発電機１を駆動する水冷エンジン
２の冷却水が、エンジン２に備えられたつオータボンブ
３１こよって、エンジン２のつオークジャケット４、エ
ンジン排気熱吸収器５、エンジン排熱回収器６と放熱器
７を兼用した熱交換器８の順に強制循環されるよう構成
されており、エンノン冷却水がつオータノヤケソト４で
エンジン本体の排熱を吸収したのちエンジン排気熱吸収
器５の吸熱部９で排気熱を吸収して昇温し、熱交換器８
内の受熱部１０を流れる熱回収液体（水）を加熱昇温さ
せるとともに、吸熱部１１を流れる冷却用液体（水）に
放熱して冷却されるようになっている。(Embodiment) Hereinafter, embodiments of the present invention will be described based on the drawings. The cooling water of the water-cooled engine 2 that drives the engine 2 is supplied to the engine 2 through an auto bomb 31 that serves as the oak jacket 4 of the engine 2, the engine exhaust heat absorber 5, the engine exhaust heat recovery device 6, and the radiator 7. It is configured to be forcedly circulated in the order of the heat exchanger 8, in which the exhaust heat of the engine body is absorbed by the engine cooling water cooler 4, and then the exhaust heat is absorbed by the heat absorption part 9 of the engine exhaust heat absorber 5. Heat exchanger 8
The heat recovery liquid (water) flowing through the heat receiving section 10 inside is heated to raise its temperature, and the heat is radiated to the cooling liquid (water) flowing through the heat absorption section 11 to be cooled.
そして、受熱部１０で加温された熱回収液体を図外の給
湯もしくは暖房用の熱負荷装置に循環供給するとともに
、吸熱部１１で吸熱した冷却用液 、体をクーリング
タワー１２にポンプ１３で強制循環して放熱するよう構
成されている。Then, the heat recovery liquid heated in the heat receiving part 10 is circulated and supplied to a heat load device for hot water supply or space heating (not shown), and the cooling liquid that has absorbed heat in the heat absorbing part 11 is forced into the cooling tower 12 by the pump 13. It is designed to circulate and dissipate heat.
又、前記発電機１、エンジン２、エンンン排気熱吸収器
５、エンノン排熱回収兼放熱用の熱交換器８及び各循環
用ポンプ３・１２が一つのパンケ＝７１４内に収められ
て配管接続されるとともに、クーリングタワー１２のみ
が装置されて熱交換器８に配管接続されている。In addition, the generator 1, engine 2, engine exhaust heat absorber 5, exhaust heat recovery/radiation heat exchanger 8, and circulation pumps 3 and 12 are housed in one pump 714 and connected to piping. At the same time, only the cooling tower 12 is installed and connected to the heat exchanger 8 by piping.
尚、図中の１５はマフラー、１Ｇはエンジン排気熱吸収
器５からのエンジン冷却水の温度が設定値（例えば７０
℃）以下になるとエンノン過冷却防止のために冷却水を
熱交換器８に供給することなく短絡循環させるサーモ三
方弁である。In addition, 15 in the figure is the muffler, and 1G is the temperature of the engine cooling water from the engine exhaust heat absorber 5, which is the set value (for example, 70
C) or below, the thermostatic three-way valve short-circuits the cooling water without supplying it to the heat exchanger 8 to prevent overcooling.
第２図に排熱回収器６と放熱器７を兼用した熱交換器８
の詳細な構造が示される。Figure 2 shows a heat exchanger 8 that doubles as an exhaust heat recovery device 6 and a radiator 7.
The detailed structure of is shown.
この熱交換器８は多管式に構成されていて、その熱交換
用ケース１７が、エンジン冷却水の人口１８及び出口１
９を備えたケース本体１７ａと、その両端に取付けられ
た一対の入口側ケース１７ ′１〕と出口側ケー
ス１７ｃとから構成され、入口側ケース１７ｂにはＭｒ
熱回収用液体の入口２０と、冷却用液体の入口２１が設
けられ、又、出口側ケース１７ｃには排熱回収用液体の
出口２２と、冷却用液体の出口２３が夫々設けられ、各
液体の入口２０・２１と出口２２・２３とがケース本体
１７ａを貫通する熱交換パイプ群で各別に連通接続され
、もって、前記受熱部１０と吸熱部１１が区画して形成
されている。そして、エンジン冷却水が流動されるケー
ス本体１７ａの内部が、エンジン排熱回収器６の前記受
熱部１０に対する授熱部６ａと、放熱器７の前記吸熱部
１１に対する放熱部７ａとされている。又、ケース本体
１．７ａの内部にはエンジン冷却水が受熱部１０及び吸
熱部１１に亘って均一に流れるように邪摩板２４が設け
られている。This heat exchanger 8 has a multi-tubular structure, and its heat exchange case 17 has an engine cooling water intake 18 and an outlet 1.
9, a pair of inlet side cases 17'1] and outlet side case 17c attached to both ends of the case body 17a, and the inlet side case 17b has Mr.
An inlet 20 for heat recovery liquid and an inlet 21 for cooling liquid are provided, and the outlet side case 17c is provided with an outlet 22 for waste heat recovery liquid and an outlet 23 for cooling liquid, respectively. The inlets 20 and 21 and the outlets 22 and 23 are connected to each other by a group of heat exchange pipes penetrating the case body 17a, thereby forming the heat receiving section 10 and the heat absorbing section 11. The inside of the case body 17a through which engine cooling water flows is a heat transfer section 6a for the heat receiving section 10 of the engine exhaust heat recovery device 6, and a heat dissipation section 7a for the heat absorption section 11 of the heat radiator 7. . Further, a baffle plate 24 is provided inside the case body 1.7a so that the engine cooling water flows uniformly over the heat receiving part 10 and the heat absorbing part 11.
尚、前記熱交換器８のケース１７を構成する入口側ケー
スと出口側ケースを排熱回収用液体専用の入口側ケース
１．７ｄと出口側ケース１７ｅ１及び冷却用液体専用の
入口側ケース１．７ｆと出口側ケース１７ｇとで構成す
るもよい。Incidentally, the inlet side case and the outlet side case that constitute the case 17 of the heat exchanger 8 are an inlet side case 1.7d dedicated to the exhaust heat recovery liquid, an outlet side case 17e1, and an inlet side case 1.7d dedicated to the cooling liquid. 7f and an outlet side case 17g.
又、放熱器７の吸熱部１１に地下水や各種設備の排水を
冷却用流体として供給排出することによって、エンジン
冷却水を冷却することも可能であす、このようにすると
クーリングタワー１２等の設備が不要となる。It is also possible to cool the engine cooling water by supplying and discharging underground water or drainage from various equipment as a cooling fluid to the heat absorbing part 11 of the radiator 7. In this way, equipment such as the cooling tower 12 is not required. becomes.
第１図は本発明に係る水冷エンノンの排熱回収装置を示
す系統図、第２図はエンジン排熱回収器と放熱器を兼用
した熱交換器の縦断側面図、第３図は熱交換器の別実施
例を示す縦断側面図、第４図は従来装置の系統図である
。
２・・・エンノン、 ４・・・つオータノヤケット、
６・・・エンジン排熱回収器、 ６ａ・・・授熱部、７
・・・放熱器、 ７ａ・・・放熱部、 １０・・・受
熱部、１１・・・吸熱部、 １７・・・熱交換用ケー
ス。Fig. 1 is a system diagram showing an exhaust heat recovery device for a water-cooled ennon according to the present invention, Fig. 2 is a vertical cross-sectional side view of a heat exchanger that serves as an engine exhaust heat recovery device and a radiator, and Fig. 3 is a side view of the heat exchanger. FIG. 4 is a longitudinal sectional side view showing another embodiment of the present invention, and FIG. 4 is a system diagram of the conventional device. 2...Ennon, 4...Tsu Otanoyaket,
6...Engine exhaust heat recovery device, 6a...Heating section, 7
... Heat radiator, 7a... Heat radiating section, 10... Heat receiving section, 11... Heat absorbing section, 17... Heat exchange case.
Claims (1)
ット４、エンジン排熱回収器６の授熱部６ａ及び放熱器
７の放熱部７ａに循環させることにより、エンジン冷却
水がウォータジャケット４でエンジン２の排熱を吸収し
て昇温し、エンジン排熱回収器６でその受熱部１０を流
れる熱回収液体を加熱して降温し、放熱器７でその吸熱
部１１を流れる冷却用流体により冷却されるように構成
したエンジンの排熱回収装置において、エンジン排熱回
収器６の受熱部１０及び放熱器７の吸熱部１１を共通の
熱交換用ケース１７内にそのケース内空間と区画して設
けるとともに、エンジン排熱回収器６の授熱部６ａ及び
放熱器７の放熱部７ａを熱交換用ケース１７のケース内
空間で形成し、放熱器６の吸熱部１１に冷却用液体を通
過させるように構成した事を特徴とするエンジンの排熱
回収装置1. By circulating the cooling water of the engine 2 through the water jacket 4 of the engine 2, the heat transfer part 6a of the engine exhaust heat recovery device 6, and the heat radiation part 7a of the radiator 7, the engine cooling water is supplied to the engine 2 in the water jacket 4. The heat recovery liquid flowing through the heat receiving part 10 is heated in the engine waste heat recovery device 6 to lower the temperature, and the engine is cooled by the cooling fluid flowing in the heat absorption part 11 in the radiator 7. In the engine exhaust heat recovery device configured as shown in FIG. At the same time, the heat transfer section 6a of the engine exhaust heat recovery device 6 and the heat dissipation section 7a of the heat radiator 7 are formed in the case inner space of the heat exchange case 17, so that the cooling liquid is passed through the heat absorption section 11 of the heat radiator 6. An engine exhaust heat recovery device characterized by having the following configuration:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62314997A JPH01155066A (en) | 1987-12-11 | 1987-12-11 | Exhaust heat recovery system for engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62314997A JPH01155066A (en) | 1987-12-11 | 1987-12-11 | Exhaust heat recovery system for engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01155066A true JPH01155066A (en) | 1989-06-16 |
Family
ID=18060167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62314997A Pending JPH01155066A (en) | 1987-12-11 | 1987-12-11 | Exhaust heat recovery system for engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01155066A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7203444B2 (en) | 2003-03-28 | 2007-04-10 | Ricoh Company Ltd. | Method and apparatus for image forming and optical writing device installed therein capable of reducing adhering dust |
-
1987
- 1987-12-11 JP JP62314997A patent/JPH01155066A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7203444B2 (en) | 2003-03-28 | 2007-04-10 | Ricoh Company Ltd. | Method and apparatus for image forming and optical writing device installed therein capable of reducing adhering dust |
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