JPH04203347A - Diesel generating device - Google Patents

Diesel generating device

Info

Publication number
JPH04203347A
JPH04203347A JP2329063A JP32906390A JPH04203347A JP H04203347 A JPH04203347 A JP H04203347A JP 2329063 A JP2329063 A JP 2329063A JP 32906390 A JP32906390 A JP 32906390A JP H04203347 A JPH04203347 A JP H04203347A
Authority
JP
Japan
Prior art keywords
fuel
diesel engine
generator
diesel
heat
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
Application number
JP2329063A
Other languages
Japanese (ja)
Inventor
Masanori Yamamoto
昌則 山本
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.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2329063A priority Critical patent/JPH04203347A/en
Publication of JPH04203347A publication Critical patent/JPH04203347A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00Engines characterised by air compression and subsequent fuel addition
    • F02B3/06Engines characterised by air compression and subsequent fuel addition with compression ignition
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies

Landscapes

  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

PURPOSE:To provide energy saving by installing a heat exchanger which performs heat exchange with surplus heat from a diesel engine and heats fuel on the way of a fuel supply system to enhance firing performance of fuel and reduce total loss. CONSTITUTION:A diesel generating device consists of a generator 3, a diesel engine 4 which drives the generator 3 and a fuel tank 5 which supplies fuel to the diesel engine 4. The surplus heat of the diesel engine 4 is heat-transferred to a heat exchanger 1 to fuel from the fuel tank 5. By this, the surplus heat of the diesel engine 4 heats fuel, and cooled water is returned to an air/ lubricating oil cooler 2. It is thus possible to heat fuel, improve firing performance and reduce total loss for energy saving.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はディーゼル発電装置に係り、特にコージェネレ
ーションシステムに好適なディーゼル発電装置に関する
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a diesel power generator, and particularly to a diesel power generator suitable for a cogeneration system.

〔従来の技術〕[Conventional technology]

従来のディーゼル発電技術としては、「現場のディーゼ
ル発電技術」昭和54年オーム社発行のp28〜p30
に示す様に、ディーゼルエンジンの冷却に使用していた
暖った冷却水(空気冷却水潤滑油冷却水)を全て放出す
る放流式か、多量の冷却水を確保できない場合には、別
に冷却塔を設置するものがほとんどであった。
As for conventional diesel power generation technology, see "On-site diesel power generation technology" published by Ohmsha in 1978, p.28-30.
As shown in Figure 2, either a discharge type is used to release all the warm cooling water (air cooling water, lubricating oil cooling water) used to cool the diesel engine, or a separate cooling tower is used if a large amount of cooling water cannot be secured. Most of them were installed.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上記従来技術は、ディーゼル発電装置の冷却に使用して
いた空気冷却水・潤滑油冷却水を有効に利用することが
できず、冷却塔で冷却していた。
In the above-mentioned conventional technology, the air cooling water and lubricating oil cooling water used for cooling the diesel power generator cannot be effectively used, and cooling is performed using a cooling tower.

また、発電機軸受へ入るディーゼルエンジンの潤滑油の
一部である潤滑油が直接入るため温度を下げられないで
、高温のまま発電機軸受へ入れていた。更に、燃料の温
度は大気温に左右され、気温の低いときは、発火性の悪
い(保有エネルギーの低い)ものとなっていた。即ち、
ディーゼルエンジンの始動が悪いものとなる。特に、非
常用に使用されることが多いため、始動性は重要である
Also, because the lubricating oil, which is part of the diesel engine's lubricating oil, enters the generator bearing directly, the temperature cannot be lowered, and it is kept at a high temperature as it enters the generator bearing. Furthermore, the temperature of the fuel depends on the atmospheric temperature, and when the temperature is low, the fuel has poor ignitability (low energy retention). That is,
The diesel engine will have trouble starting. In particular, startability is important because it is often used for emergencies.

一方、冷却塔で冷却する場合は、冷却に寄与しないで外
部に冷却水の放出があり、有効に利用される冷却水の損
失となっていた。
On the other hand, when cooling is performed using a cooling tower, cooling water is discharged to the outside without contributing to cooling, resulting in a loss of cooling water that could be used effectively.

本発明は上述の点に鑑みなされたもので、その目的は、
燃料の発火性を高め、トータルロスの低減を行い、省エ
ネルギーが可能なディーゼルエンジン発電装置を提供す
るにある。
The present invention has been made in view of the above points, and its purpose is to:
An object of the present invention is to provide a diesel engine power generation device that can save energy by increasing the ignitability of fuel and reducing total loss.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的は、空気冷却水・潤滑油冷却水、又はジャケッ
ト冷却水と燃料との熱交換を行う熱交換器を設けたり、
排ガス熱交換器から発生した蒸気、又は温水と燃料との
熱交換を行うことにより達成されるし、排ガスと直接燃
料との熱交換を行うことによっても同様である。
The above purpose is to install a heat exchanger that exchanges heat between air cooling water, lubricating oil cooling water, or jacket cooling water and fuel,
This can be achieved by exchanging heat between steam or hot water generated from an exhaust gas heat exchanger and fuel, or by exchanging heat directly between exhaust gas and fuel.

また、燃料タンク、及び燃料配管にヒータを設けてもよ
いし、更には、発電機軸受へ入る潤滑油を燃料との熱交
換器に入れた後、発電機軸受に入れても同様である。
Further, a heater may be provided in the fuel tank and the fuel piping, or the lubricating oil entering the generator bearing may be introduced into a heat exchanger with the fuel and then introduced into the generator bearing.

〔作用〕[Effect]

本発明では、空気冷却水・潤滑油冷却水は約40℃程度
のため、燃料の加温された温度は最大でも約40℃程度
以下となる。本領は燃料の引火点より小さいものであり
、安全に加温できる。また、ジャケット冷却水は約80
℃程度のため、燃料の加温には、燃料の流量と、ジャケ
ット冷却水流量との調整を行い加温するものである。更
に、排ガス熱交換器から発生した蒸気・温水による燃料
の加温には、蒸気・温水の流量を調整して行い加温する
。一方、排ガスによる燃料の加温には、排ガスの流量を
調整して行い加温するものである。
In the present invention, since the air cooling water and lubricating oil cooling water are about 40°C, the heated temperature of the fuel is about 40°C or less at maximum. The real advantage is that it is lower than the flash point of the fuel, so it can be heated safely. In addition, the jacket cooling water is approximately 80
℃, so the fuel must be heated by adjusting the flow rate of the fuel and the flow rate of the jacket cooling water. Furthermore, the fuel is heated by the steam and hot water generated from the exhaust gas heat exchanger by adjusting the flow rate of the steam and hot water. On the other hand, the fuel is heated by exhaust gas by adjusting the flow rate of the exhaust gas.

また、ヒータによる燃料の加温は、燃料の発火性は高く
なるが潤滑油による燃料の加温は、潤滑油の流量を調整
して行ない加温するものである。
Further, heating the fuel using a heater increases the ignitability of the fuel, but heating the fuel using lubricating oil is performed by adjusting the flow rate of the lubricating oil.

〔実施例〕〔Example〕

以下、本発明の一実施例を第1図〜第6図により説明す
る。
An embodiment of the present invention will be described below with reference to FIGS. 1 to 6.

ディーゼル発電装置は、発電機3と、この発電機3を駆
動するディーゼルエンジン4と、このディーゼルエンジ
ン4へ燃料を供給する燃料タンク5とで概略構成される
The diesel power generation device is generally composed of a generator 3, a diesel engine 4 that drives the generator 3, and a fuel tank 5 that supplies fuel to the diesel engine 4.

第1図に示す実施例は、ディーゼルエンジン4の余剰熱
を、ディーゼルエンジン4の空気・潤滑油冷却器2を通
し、燃料タンク5からの燃料との熱交換器1に熱移動す
る。これにより、ディーゼルエンジン4の余剰熱が燃料
を加温することになり、冷却された水が、空気・潤滑油
冷却器2へと戻される。
In the embodiment shown in FIG. 1, excess heat of a diesel engine 4 is transferred through an air/lubricant oil cooler 2 of the diesel engine 4 to a heat exchanger 1 with fuel from a fuel tank 5. As a result, the excess heat of the diesel engine 4 will heat the fuel, and the cooled water will be returned to the air/lubrication oil cooler 2.

第2図に示す実施例は、ディーゼルエンジン4について
いるジャケット冷却器6の余剰熱の一部が、燃料タンク
5からの燃料との熱交換器1へと熱移動する。これによ
り、ディーゼルエンジン4の余剰熱が燃料を加温するこ
とになり、冷却された冷却水が、ジャケット冷却器6へ
と戻る。
In the embodiment shown in FIG. 2, part of the surplus heat of the jacket cooler 6 attached to the diesel engine 4 is transferred to the heat exchanger 1 with the fuel from the fuel tank 5. As a result, the excess heat of the diesel engine 4 warms the fuel, and the cooled cooling water returns to the jacket cooler 6.

第3図に示す実施例は、ディーゼルエンジン4から排出
される排ガスの排ガス熱交換器7で作られた蒸気、又は
温水の一部を、燃料タンク5からの燃料との熱交換器1
に入れることにより、熱移動が行なわれ、燃料の加温が
行なわれる。
In the embodiment shown in FIG. 3, a part of the steam or hot water produced in the exhaust gas heat exchanger 7 of the exhaust gas discharged from the diesel engine 4 is transferred to the heat exchanger 1 with fuel from the fuel tank 5.
By placing the fuel in the tank, heat transfer occurs and the fuel is heated.

第4図に示す実施例は、排ガスの一部を直接燃料タンク
5からの燃料との熱交換器1に入れることにより、熱移
動が行なわれ、燃料の加温が行なわれる。
In the embodiment shown in FIG. 4, a portion of the exhaust gas is directly introduced into the heat exchanger 1 with the fuel from the fuel tank 5, whereby heat transfer is performed and the fuel is heated.

第5図に示す実施例は、ヒータ9を燃料タンク5からの
燃料供給系を設け、このヒータ9により、燃料を加温す
ることが行なわれる。
In the embodiment shown in FIG. 5, a heater 9 is provided in the fuel supply system from the fuel tank 5, and the heater 9 heats the fuel.

第6図に示す実施例は、発電機3の軸受10に入る潤滑
油の一部を、燃料タンク5からの燃料との熱交換器1に
入れることにより、燃料の加温が行なわれ、潤滑油は冷
却される。この冷却された潤滑油を発電機軸受10へ入
れる。
In the embodiment shown in FIG. 6, a part of the lubricating oil entering the bearing 10 of the generator 3 is put into the heat exchanger 1 with the fuel from the fuel tank 5 to heat the fuel and lubricate it. The oil is cooled. This cooled lubricating oil is introduced into the generator bearing 10.

このようにすることにより、燃料の加温が行なわれるた
め、発火性が向上し、トータルロスの低減が図れ、省エ
ネルギーが可能となる。
By doing so, the fuel is heated, so that ignitability is improved, total loss is reduced, and energy can be saved.

〔発明の効果〕〔Effect of the invention〕

以上説明した本発明によれば、燃料を加温することがで
きるので、発火性の向上が図れ、トータルロスの低減が
行なわれ、省エネルギーが可能となる効果がある。
According to the present invention described above, since fuel can be heated, ignitability can be improved, total loss can be reduced, and energy can be saved.

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

第1図は本発明の一実施例を示すディーゼル発電装置の
系統図、第2図、第3図、第4図、第5図及び第6図は
、それぞれ本発明の他の実施例を示すディーゼル発電装
置の系統図である。 1・・・熱交換器、2・・・空気・潤滑油冷却器、3・
・・発電機、4・・・ディーゼルエンジン、5・・・燃
料タンク、6・・・ジャケット冷却器、7・・・排ガス
熱交換器、8第3図 第4図 第5図 第6図
FIG. 1 is a system diagram of a diesel power generator showing one embodiment of the present invention, and FIGS. 2, 3, 4, 5, and 6 each show other embodiments of the present invention. It is a system diagram of a diesel power generator. 1... Heat exchanger, 2... Air/lubricating oil cooler, 3...
... Generator, 4... Diesel engine, 5... Fuel tank, 6... Jacket cooler, 7... Exhaust gas heat exchanger, 8 Figure 3 Figure 4 Figure 5 Figure 6

Claims (1)

【特許請求の範囲】 1、発電機と、該発電機を駆動するディーゼルエンジン
と、該ディーゼルエンジンへ燃料を供給する燃料タンク
とを備えたディーゼル発電装置において、前記ディーゼ
ルエンジンへ燃料を供給する燃料供給系の途中に、前記
ディーゼルエンジンからの余剰熱と熱交換を行い燃料を
加温する熱交換器を設けたことを特徴とするディーゼル
発電装置。 2、前記ディーゼルエンジンの余剰熱は、該ディーゼル
エンジンの空気、潤滑油冷却器、又はジャケット冷却器
から取り出されたものであることを特徴とする請求項1
記載のディーゼル発電装置。 3、前記ディーゼルエンジンの余剰熱は、該ディーゼル
エンジンからの排ガスと熱交換して作られた蒸気、又は
温水の一部であることを特徴とする請求項1記載のディ
ーゼル発電装置。 4、前記ディーゼルエンジンの余剰熱は、該ディーゼル
エンジンからの排ガスの一部であることを特徴とする請
求項1記載のディーゼル発電装置。 5、発電機と、該発電機を駆動するディーゼルエンジン
と、該ディーゼルエンジンへ燃料を供給する燃料タンク
とを備えたディーゼル発電装置において、前記ディーゼ
ルエンジンへ燃料を供給する燃料供給系の途中にヒータ
を設け、該ヒータで前記燃料を加温することを特徴とす
るディーゼル発電装置。 6、発電機と、該発電機を駆動するディーゼルエンジン
と、該ディーゼルエンジンへ燃料を供給する燃料タンク
とを備えたディーゼル発電装置において、前記ディーゼ
ルエンジンへ燃料を供給する燃料供給系の途中に、前記
発電機の軸受からの余剰熱と熱交換を行い燃料を加温す
る熱交換器を設けたことを特徴とするディーゼル発電装
置。
[Scope of Claims] 1. In a diesel power generation device comprising a generator, a diesel engine that drives the generator, and a fuel tank that supplies fuel to the diesel engine, a fuel that supplies fuel to the diesel engine. A diesel power generator characterized in that a heat exchanger is provided in the supply system for heating fuel by exchanging heat with surplus heat from the diesel engine. 2. Claim 1, wherein the excess heat of the diesel engine is extracted from the air, lubricating oil cooler, or jacket cooler of the diesel engine.
Diesel generator set as described. 3. The diesel power generator according to claim 1, wherein the surplus heat of the diesel engine is a part of steam or hot water produced by heat exchange with exhaust gas from the diesel engine. 4. The diesel power generator according to claim 1, wherein the surplus heat of the diesel engine is a part of exhaust gas from the diesel engine. 5. In a diesel power generation device comprising a generator, a diesel engine that drives the generator, and a fuel tank that supplies fuel to the diesel engine, a heater is installed in the middle of the fuel supply system that supplies fuel to the diesel engine. A diesel power generator, characterized in that the fuel is heated by the heater. 6. In a diesel power generation device comprising a generator, a diesel engine that drives the generator, and a fuel tank that supplies fuel to the diesel engine, in the middle of the fuel supply system that supplies fuel to the diesel engine, A diesel power generator characterized in that a heat exchanger is provided for heating fuel by exchanging heat with surplus heat from a bearing of the generator.
JP2329063A 1990-11-30 1990-11-30 Diesel generating device Pending JPH04203347A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2329063A JPH04203347A (en) 1990-11-30 1990-11-30 Diesel generating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2329063A JPH04203347A (en) 1990-11-30 1990-11-30 Diesel generating device

Publications (1)

Publication Number Publication Date
JPH04203347A true JPH04203347A (en) 1992-07-23

Family

ID=18217198

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2329063A Pending JPH04203347A (en) 1990-11-30 1990-11-30 Diesel generating device

Country Status (1)

Country Link
JP (1) JPH04203347A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7963271B2 (en) * 2007-07-26 2011-06-21 General Electric Company System and method for heating viscous fuel supplied to diesel engines

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7963271B2 (en) * 2007-07-26 2011-06-21 General Electric Company System and method for heating viscous fuel supplied to diesel engines

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