JPS60192862A - Utilization of waste heat in diesel engine - Google Patents
Utilization of waste heat in diesel engineInfo
- Publication number
- JPS60192862A JPS60192862A JP59050267A JP5026784A JPS60192862A JP S60192862 A JPS60192862 A JP S60192862A JP 59050267 A JP59050267 A JP 59050267A JP 5026784 A JP5026784 A JP 5026784A JP S60192862 A JPS60192862 A JP S60192862A
- Authority
- JP
- Japan
- Prior art keywords
- water
- supplied
- exhaust gas
- diesel engine
- steam
- 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
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
- F02G5/00—Profiting from waste heat of combustion engines, not otherwise provided for
- F02G5/02—Profiting from waste heat of exhaust gases
- F02G5/04—Profiting from waste heat of exhaust gases in combination with other waste heat from combustion engines
-
- 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
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
水元用はディーゼル機関の廃熱利用方法に関し、特に舶
用のディーゼル機関の廃熱利用方法に関するー
従来例の構成とその問題点
船舶において使用されるディーゼル機関にあっては、従
来から排ガスエコノマイザを製置して排熱の利用が図ら
れている。第１図はこのような従来の廃熱利用方法の一
例を示し、１は主機ディーゼル機関、２はディーゼル機
関１からの排ガス３により作用される排ガスエコノマイ
ザである。排ガスエコノマイザ２の内部には蒸発器４が
設けられ、気水分離器５から缶水循環ポンプ６にて送ら
れて来る清水を加熱して蒸気を発、生させるようになっ
ている。この蒸発器４からの蒸気は、気水分離器５を通
った後、燃料タンクヒータ等の加熱サービス機器７に送
られて熱を供給し、凝縮水はドレンクーラ８を通った後
にドレンタン９９に送られる。[Detailed Description of the Invention] The industrial field of application relates to a method of utilizing waste heat of a diesel engine, particularly a method of utilizing waste heat of a marine diesel engine - the structure of a conventional example and its problems used in a ship. In diesel engines, exhaust gas economizers have traditionally been installed to utilize exhaust heat. FIG. 1 shows an example of such a conventional waste heat utilization method, in which 1 is a main diesel engine, and 2 is an exhaust gas economizer operated by exhaust gas 3 from the diesel engine 1. An evaporator 4 is provided inside the exhaust gas economizer 2, and is configured to heat fresh water sent from a steam-water separator 5 by a can water circulation pump 6 to generate steam. The steam from the evaporator 4 passes through the steam/water separator 5 and then is sent to heating service equipment 7 such as a fuel tank heater to supply heat, and the condensed water passes through the drain cooler 8 and then is sent to the drain tank 99. It will be done.
加熱りｍ−ビス機器７へ供給した残りの蒸気は、この加
熱サービス機器７への経路から分流され、排ガスエコノ
マイザ２内において蒸発器４よりも排ガス流の上流側に
設けられた過熱器１０にて過熱され、過熱蒸気はターボ
発電機１１に供給される。The remaining steam supplied to the heating service equipment 7 is diverted from the path to the heating service equipment 7 and sent to a superheater 10 provided upstream of the evaporator 4 in the exhaust gas flow within the exhaust gas economizer 2. The superheated steam is supplied to the turbo generator 11.
１２はターボ発電機１１にイ］没された真空復水器、ま
た１３は復水ポンプで、ターボ発電機１１からの復水は
前記ドレンタンク９へ送られるようになっている。12 is a vacuum condenser submerged in the turbo generator 11, and 13 is a condensate pump, so that condensate from the turbo generator 11 is sent to the drain tank 9.
ドレンタンク９．内の清水は給水ポンプ１４により空気
冷却器１５に送られて過給空気にて加熱され、加熱後の
清水は前記気水分１ｌｌｌ器５に送られて系内を循環す
る構成となっている。Drain tank9. The fresh water inside is sent to an air cooler 15 by a water supply pump 14 and heated with supercharged air, and the heated fresh water is sent to the steam/moisture 1llll vessel 5 and circulated within the system.
１６はディーゼル機関１のシリンダシＩ？ゲット冷部水
の循環系で、冷却清水ポンプ１７と、前記冷却清水を海
水にて冷却させるための清水冷却器１８とを有している
。なお、前述の空気冷却器１５の一部分、真空復水器１
２およびドレンクーラ８もまた海水にて冷却されており
、図中破線は海水系統を示している。また、図中太い実
線は蒸気系統を、細い実線は清水系統をそれぞれ示して
いる。Is 16 cylinder cylinder I of diesel engine 1? The get cold part water circulation system includes a cooling fresh water pump 17 and a fresh water cooler 18 for cooling the cooling fresh water with seawater. Note that a portion of the air cooler 15 and the vacuum condenser 1 described above
2 and drain cooler 8 are also cooled with seawater, and the broken line in the figure shows the seawater system. Further, in the figure, the thick solid line indicates the steam system, and the thin solid line indicates the fresh water system.
しかし、上述のように加熱サービス機器７へ供給した残
りの蒸気のみでは、ターボ発電機１１の発生電力で航海
中の船内電力をまかなうという、ターボ発電機１１を設
置することの本来の目的が達成でさない場合がある。１
なわち、最近、主機ディーぜル機関１の熱効率が高まり
、排ガス３中に含まれる熱エネルギが少なくなって、排
ガスエコノマイザ２での発生蒸気量が少なくなってきて
いるが、一方、これに反して加熱ザービス機器７におけ
る蒸気消費量及び船内での必要電力はむしろ増す傾向に
ある。However, as mentioned above, with only the remaining steam supplied to the heating service equipment 7, the original purpose of installing the turbo generator 11, which is to use the generated power of the turbo generator 11 to cover the onboard power during the voyage, is achieved. It may not be possible. 1
In other words, recently, the thermal efficiency of the main diesel engine 1 has increased, the thermal energy contained in the exhaust gas 3 has decreased, and the amount of steam generated by the exhaust gas economizer 2 has decreased. Therefore, the amount of steam consumed by the heating service equipment 7 and the power required on board the ship tend to increase.
この結果、電力の不足分を、ディーゼル発電機を回すか
または補助ボイラで不足蒸気を発生させる等により補充
しな（プればならなくなる。このため、その分の燃料費
がかさむことになるのみならず、ディーゼル発電機や補
助ボイラ等の運転保守費用が必要となり、廃熱利用のた
めのターボ発電１１１を搭載した利点がうＪれるという
問題がある。As a result, the electricity shortage must be supplemented by running a diesel generator or generating insufficient steam in an auxiliary boiler. This only increases fuel costs. However, there is a problem that operation and maintenance costs for diesel generators, auxiliary boilers, etc. are required, and the advantage of installing the turbo power generation 111 for utilizing waste heat is lost.
発明の目的
そこで本発明は、新たな蒸気発生装置を用いることなく
、しかも燃料消費の増大をきたすことなしに、ターボ発
電機に必要な蒸気量を確保し、かつ航海中の必要電力を
ターボ発電機のみでまかなえるようにすることを目的と
するものである。Purpose of the Invention Therefore, the present invention aims to secure the amount of steam necessary for the turbo generator without using a new steam generator and without increasing fuel consumption, and to generate the necessary power during the voyage by turbo generator. The purpose is to make it possible to cover the costs by using machines alone.
発明の構成
この目的を達成づ−るため本発明は、ディーゼル機関の
排ガスエコノマイザからの蒸気により運転されるターボ
発電機からの復水と、前記ディーゼル機関に付設された
加熱サービース機器にて熱交換された後の清水とを合流
させ、これを前記ディーゼル機関のシリンダジトケット
冷ｒＪ］水と熱交換させて加熱した後、前記ディーぜル
機関への過給空気と熱交換させて再加熱し、加熱後の清
水を前記排ガスエコノマイザと加熱ザービス機器とに分
流して供給するものである。Structure of the Invention In order to achieve this object, the present invention provides heat exchange between condensate from a turbo generator operated by steam from an exhaust gas economizer of a diesel engine and a heating service equipment attached to the diesel engine. This is heated by exchanging heat with the cylinder jet water of the diesel engine, and then reheated by exchanging heat with the supercharging air to the diesel engine. The fresh water after heating is divided and supplied to the exhaust gas economizer and the heating service equipment.
実施例と作用
以下、本発明の一実施例を、第２図にもとづき、第１図
と同一の部材には同一の番号を付して説明する。シリン
ダジレケット冷却水の循環系１６には、清水冷却器１８
の上流側に清水加熱器２１が設けられている。一方、タ
ーボ発電１１１１からの復水と、加熱サービス機器７に
て熱交換された後の清水とは、互いに合流された後清水
循環ポンプ２２にて前記清−１１／ＩｆＩ自ｈｍす１１
− ’！’Ｉ！ ｒ−４／１ ３１■−ｊ７／ ５２−
Ａ−〜、Ｌ 込＋ｎ −Ａ＋にて加熱される。この清水
加熱器２１にて加熱された清水は、清水加熱器２１より
ｂ温度レベルの高い空気冷却器１５に送られ、この空気
冷却器１５において再加熱される。再加熱により高温と
なった清水は、イの一部が加熱ザービス＋ｉ器７に供給
されるとともに、残部が給水ポンプ２３の作用により気
水分離器５に供給される。Embodiment and Function An embodiment of the present invention will be described below with reference to FIG. 2, with the same numbers assigned to the same members as in FIG. 1. A fresh water cooler 18 is included in the cylinder jet cooling water circulation system 16.
A fresh water heater 21 is provided on the upstream side. On the other hand, the condensate from the turbo power generation 1111 and the fresh water after heat exchange in the heating service equipment 7 are combined with each other and then passed through the fresh water circulation pump 22 to the fresh water 11/IfI self-hm 11.
−'! 'I! r-4/1 31■-j7/ 52-
Heated at A-~, L including +n - A+. The fresh water heated by the fresh water heater 21 is sent to the air cooler 15 whose temperature level b is higher than that of the fresh water heater 21, and is reheated in the air cooler 15. A part of the fresh water heated to a high temperature by reheating is supplied to the heating service + unit 7, and the remaining part is supplied to the steam/water separator 5 by the action of the water supply pump 23.
このような構成によると、排ガスエコノマイザ２にはシ
リンダジセケットの冷却水と過給空気とｅ高温に加熱さ
れた清水が供給される！こめ、蒸発量を増大さＵること
ができる。また加熱ザービス機器７には、従来の蒸気に
代えて過給空気にて加熱された後の清水が供給されるた
め、従来加熱サービスｉ器７に供給されていた蒸気をも
ターボ発電＜１ｉｉに供給できることになる。したがっ
て、本発明のシステムによれば、従来のシステムに比べ
て、たとえば６〜１０万重量トン級の貨物船において、
同じ排ガスエコノマイザ２を用いてもその蒸発ｍは約１
５％増加し、またターボ発電ｂ１１１への供給蒸気量は
１，５〜１．７倍に増大し、これととｔ）に発生電力も
１，５〜１．７倍となる。この結果システム全体の省エ
ネルギ効果が高められる利点がある。According to such a configuration, the exhaust gas economizer 2 is supplied with the cooling water of the cylinder gasket, the supercharged air, and fresh water heated to a high temperature! This can increase the amount of evaporation. In addition, since the heating service equipment 7 is supplied with clean water that has been heated with supercharged air instead of conventional steam, the steam that was conventionally supplied to the heating service equipment 7 can also be used for turbo power generation <1ii. We will be able to supply it. Therefore, according to the system of the present invention, compared to the conventional system, for example, in a cargo ship of 60,000 to 100,000 to 100,000 deadweight tons,
Even if the same exhaust gas economizer 2 is used, the evaporation m is about 1
In addition, the amount of steam supplied to the turbo power generation b111 increases by 1.5 to 1.7 times, and in addition to this, the generated power also increases by 1.5 to 1.7 times. As a result, there is an advantage that the energy saving effect of the entire system is enhanced.
また、第２図に示ずシステムにおいては、清水冷却器１
８における冷却海水量が減少するため海水ポンプの動力
を小形化でき、加熱Ｖ−ビス機器７は清水の顕熱を利用
することになるため制御が容易となり、かつ第１図に示
されるようなドレンクーラ８やドレンタンク９は不要ど
なる。In addition, in the system not shown in Fig. 2, the fresh water cooler 1
Since the amount of cooling seawater in step 8 is reduced, the power of the seawater pump can be downsized, and the heating V-vis device 7 utilizes the sensible heat of fresh water, making it easier to control. Drain cooler 8 and drain tank 9 are unnecessary.
発明の効果
以上述べたように本発明によると、排ガスエコノマイザ
には、シリンダシ１νケツトの冷却水と過給空気とで高
温に加熱された清水が供給されることになるため、この
排ガスエコノマイザにおける蒸発量が増大し、また、加
熱ナービス機器には従来の蒸気に代えて過給空気にて加
熱された後の清水が供給されることになるため、従来加
熱サービス機器に供給されていた蒸気をもターボ発電機
に供給できることになって、ターボ発電機への蒸気供給
量が大幅に増大し、その発生電力を増大できる。Effects of the Invention As described above, according to the present invention, the exhaust gas economizer is supplied with fresh water that has been heated to a high temperature by the cooling water of the cylinder cylinder 1ν and the supercharged air, so that the evaporation in the exhaust gas economizer is In addition, since fresh water heated with supercharged air will be supplied to heating service equipment instead of conventional steam, the steam that was conventionally supplied to heating service equipment will also be supplied. Since the steam can be supplied to the turbo generator, the amount of steam supplied to the turbo generator can be greatly increased, and the generated power can be increased.
第１図は従来例を示すシステム図、第２図は本発明の一
実施例を示すシステム図である。
１・・・ディーゼル機関、２・・・排ガスエコノマイザ
、７・・・加熱ザービス（汲置、１１・・・ターボ発電
機、１５・・・空気冷却器、２１・・・清水加熱器
代即人 森 本 義 弘
第１図
第２図FIG. 1 is a system diagram showing a conventional example, and FIG. 2 is a system diagram showing an embodiment of the present invention. 1... Diesel engine, 2... Exhaust gas economizer, 7... Heating service (pumping station, 11... Turbo generator, 15... Air cooler, 21... Clean water heater fee immediately) Yoshihiro MorimotoFigure 1Figure 2
Claims (1)
より運転されるターボ発電機からの復水と、前記ディー
ゼル機関に付設された加熱サービス機器にで熱交換され
た後の清水とを合流させ、これを前記ディーゼル機関の
シリンダジャケット冷却水と熱交換させて加熱した後、
前記ディーピル機関への過給空気と熱交換させて再加熱
し、加熱後の清水を前記排ガスエコノマイザと加熱Ｖ−
ビス、機器とに分流して供給することを特徴とするディ
ーゼル機関の廃熱利用方法。1. The condensate from the turbo generator operated by the steam from the exhaust gas economizer of the Diesel engine is combined with the fresh water that has been heat exchanged with the heating service equipment attached to the diesel engine, and this is After heating by exchanging heat with the cylinder jacket cooling water of a diesel engine,
The heated fresh water is reheated by exchanging heat with the supercharged air to the deep-pil engine, and the heated clean water is transferred to the exhaust gas economizer and the heated V-
A method of utilizing waste heat from a diesel engine, which is characterized by supplying waste heat in a divided manner to screws and equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59050267A JPS60192862A (en) | 1984-03-15 | 1984-03-15 | Utilization of waste heat in diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59050267A JPS60192862A (en) | 1984-03-15 | 1984-03-15 | Utilization of waste heat in diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60192862A true JPS60192862A (en) | 1985-10-01 |
Family
ID=12854186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59050267A Pending JPS60192862A (en) | 1984-03-15 | 1984-03-15 | Utilization of waste heat in diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60192862A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011106302A (en) * | 2009-11-13 | 2011-06-02 | Mitsubishi Heavy Ind Ltd | Engine waste heat recovery power-generating turbo system and reciprocating engine system including the same |
-
1984
- 1984-03-15 JP JP59050267A patent/JPS60192862A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011106302A (en) * | 2009-11-13 | 2011-06-02 | Mitsubishi Heavy Ind Ltd | Engine waste heat recovery power-generating turbo system and reciprocating engine system including the same |
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