JPS60224906A - Waste heat recovery device - Google Patents

Waste heat recovery device

Info

Publication number
JPS60224906A
JPS60224906A JP59079359A JP7935984A JPS60224906A JP S60224906 A JPS60224906 A JP S60224906A JP 59079359 A JP59079359 A JP 59079359A JP 7935984 A JP7935984 A JP 7935984A JP S60224906 A JPS60224906 A JP S60224906A
Authority
JP
Japan
Prior art keywords
steam
heat
turbine
water
hot 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.)
Pending
Application number
JP59079359A
Other languages
Japanese (ja)
Inventor
Yoichi Iwanaga
岩永　洋一
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP59079359A priority Critical patent/JPS60224906A/en
Publication of JPS60224906A publication Critical patent/JPS60224906A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/065—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle the combustion taking place in an internal combustion piston engine, e.g. a diesel engine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K21/00—Steam engine plants not otherwise provided for
    • F01K21/005—Steam engine plants not otherwise provided for using mixtures of liquid and steam or evaporation of a liquid by expansion
    • 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
    • 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

PURPOSE:To improve recovery efficiency, by a method wherein recvery of waste heat is conducted in the form of 2-phase flow of steam and heat water, the steam and the heat water are conveyed in a 2-phase flow state to the turbine machine side and expanded in the same turbine, and the heat water is expanded to vacuum in a condenser. CONSTITUTION:Feed water is preheated in an air cooler 7 by means of scavenging air B from a Diesel engine, and after the heat of exhaust gas A from the Diesel engine is absorbed in a heat water generator 1, the scavenging gas is recovered in the form of 2-phase flow of steam and heat water to store them in an accumulator 2. Although steam (b) and heat water (a) in the accumulator 2 are separately taken out, the steam and the heat water are mixed together in a heat turbine 3 again to convert them into a power. Thereafter, the heat water and the steam in the turbine 3 are expanded to vacuum in a condenser 5, exhaust gas from the turbine is condensed by the condenser 5 and is returned to a feed water line together with exhaust drain with the aid of a condensing pump 6. This, since recovery of water heat is effected in the form of 2-phase flow of the steam and the hot water, enables improvement of recovery efficiency through a simple structure.

Description

【発明の詳細な説明】 本発明は廃熱回収装置に関する。[Detailed description of the invention] The present invention relates to a waste heat recovery device.

従来のこの種の装置を第１図に示す。図において、廃ガ
スの熱エネルギを熱水の形で回収し、熱水タービン０３
とフラッシュ蒸気タービン０４にテ動力に変換する７ス
テムである。このシステムは廃熱温度が高い場合あるい
はプラントの運転条件が変化し一時的に高くなる場合で
も熱水発生器０１内で蒸発しないように、給水ポンプ０
１０の吐出圧力を高く保つ必要がある。そのため排熱温
度が低い場合でも給水ラインｄの圧力を高く保つ必要が
あシ、給水ポンゾ損失が大きい。さらに。A conventional device of this type is shown in FIG. In the figure, the thermal energy of the waste gas is recovered in the form of hot water, and the hot water turbine 03
and a 7-stem system that converts the power into a flash steam turbine 04. This system is designed to prevent evaporation in the hot water generator 01 even when the waste heat temperature is high or temporarily increases due to changes in plant operating conditions.
It is necessary to keep the discharge pressure of 10 high. Therefore, even when the exhaust heat temperature is low, it is necessary to maintain the pressure in the water supply line d high, resulting in a large water supply ponzo loss. moreover.

熱水タービン０３出口の熱水ａはフラッシャ０５にてフ
ラッジ−され蒸気ｂＦｉフラ、シュタービン０４にて動
力に変換されるが、熱水ドレンＣは給水ラインｄに戻さ
れるため、復水器真空まで仕事をすることができない等
の欠点がある。なお。The hot water a at the outlet of the hot water turbine 03 is flushed by the flasher 05 and converted into steam bFi fla and power by the steam turbine 04, but the hot water drain C is returned to the water supply line d, so the condenser vacuum There are disadvantages such as not being able to work until the end. In addition.

０２はアキュムレータ、０６は発電機、０７は復水器、
０８は復水ポンプ、０９はブースタポンプ。02 is an accumulator, 06 is a generator, 07 is a condenser,
08 is the condensate pump, 09 is the booster pump.

矢印Ａは排ガスを示す。Arrow A indicates exhaust gas.

本発明の目的は上記の点に着目し、給水圧力。The purpose of the present invention is to improve the water supply pressure by paying attention to the above points.

流量は一定とし、給水ポンプの設計を楽にし設計効率を
高くでき、廃熱回収で得られた蒸気、熱水を復水器真空
まで膨張させることで１回収動力を大きくすることがで
き、さらに低温給水が可能となり、廃熱回収率を上げる
ことのできる廃熱回収装置を提供することであり、その
特徴とするところは、ディーゼル機関の掃気にて予熱さ
れた給水が導入され同機関の排ガスの熱を吸収して蒸気
及び熱水の２相流を形成する熱水発生器２発電機を駆動
する熱水タービン側に配置され上記蒸気及び熱水を蓄積
するアキームレータ、同アキュムレータよりの上記蒸気
及び熱水の熱を動力に変換する熱水タービン、上記ター
ビンの排気及びドレンが投入され上記タービンの排気が
凝縮される復水器を備えたことである。By keeping the flow rate constant, it is possible to simplify the design of the water supply pump and increase its design efficiency, and by expanding the steam and hot water obtained by waste heat recovery to the condenser vacuum, the power recovered per unit can be increased. The purpose of the present invention is to provide a waste heat recovery device that enables low-temperature water supply and increases the waste heat recovery rate.The feature is that the feed water preheated by the scavenging air of a diesel engine is introduced, and the exhaust gas of the engine is A hot water generator that absorbs the heat of the steam and hot water to form a two-phase flow of steam and hot water.2 An accumulator that is placed on the side of the hot water turbine that drives the generator and accumulates the steam and hot water; It is equipped with a hot water turbine that converts the heat of steam and hot water into power, and a condenser into which the exhaust gas and drain from the turbine are input and the exhaust gas from the turbine is condensed.

以下図面を参照して本発明による実施例につき説明する
＠ 第２図は本発明による１実施例の廃熱回収装置を示す説
明図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is an explanatory diagram showing an embodiment of a waste heat recovery apparatus according to the present invention.

図において、ディーゼル機関の掃気（矢印Ｂ）Ｋで予熱
された給水は、熱水発生器１にてディーゼル機関の排ガ
ス（矢印Ａ）の熱を吸収し、蒸気及び熱水の２相流とし
て回収され、アキームレータ２に蓄えられる。In the figure, the feed water preheated by the scavenging air (arrow B) K of the diesel engine absorbs the heat of the diesel engine exhaust gas (arrow A) in the hot water generator 1, and is recovered as a two-phase flow of steam and hot water. and stored in the Achievement Lator 2.

アキュレータ２内の蒸気す及び熱水ａＶｉ、別々に取り
出されるが、再度熱水タービン３内で混υ合い動力に変
換される。The steam and hot water aVi in the accurator 2 are taken out separately, but mixed again in the hot water turbine 3 and converted into power.

タービン３内の熱水及び蒸気は復水器５の真空まで膨張
し、タービン排気は復水器５で凝縮し。The hot water and steam in the turbine 3 expand to the vacuum of the condenser 5, and the turbine exhaust condenses in the condenser 5.

排気ドレンと共に復水ボンデ６で給水ラインへ戻る。４
は発電機、７は空気冷却器を示す。It returns to the water supply line through the condensate bond 6 together with the exhaust drain. 4
indicates a generator, and 7 indicates an air cooler.

上記構成２作用の場合には次の効果がある。In the case of the above configuration 2 effect, there are the following effects.

廃熱回収を蒸気と熱水の２相流の形態で行うため廃熱温
度の変化に対しても適用範囲が広い。また回収した蒸気
と熱水を２相流の状態でタービン機側まで輸送するので
、蒸気と熱水を分離して輸送する場合より配管が簡単に
なる。さらに熱水と蒸気を同一タービン内で膨張させる
ので、タービンが一台で良い。その他、熱水を彷水器真
空まで膨張させることができるので、熱回収率が高い等
の効果がある。Since waste heat is recovered in the form of a two-phase flow of steam and hot water, it has a wide range of applications even when the waste heat temperature changes. Furthermore, since the recovered steam and hot water are transported to the turbine side in a two-phase flow state, the piping is simpler than when steam and hot water are transported separately. Furthermore, since hot water and steam are expanded in the same turbine, only one turbine is required. In addition, since the hot water can be expanded to the vacuum level of the water swirler, there are other effects such as a high heat recovery rate.

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

第１図は従来の廃熱回収装置を示す説明図、第２図は本
発明による１実施例の廃熱回収装置を示す説明図である
。 １・・・熱水発生器、２・・・アキームレータ、３・・
・熱水タービン、４・・・発電機、５・・・復水器、６
・・・復水ポンプ、７・・・空気冷却器。 １ ７１図FIG. 1 is an explanatory diagram showing a conventional waste heat recovery device, and FIG. 2 is an explanatory diagram showing an embodiment of the waste heat recovery device according to the present invention. 1... Hot water generator, 2... Achimulator, 3...
・Hot water turbine, 4... Generator, 5... Condenser, 6
... Condensate pump, 7... Air cooler. 1 71 figure

Claims (1)

【特許請求の範囲】[Claims] １、　ディーゼル機関の掃気にて予熱された給水が導入
され同機関の排ガスの熱を吸収して蒸気及び熱水の２相
流を形成する熱水発生器１発電機を駆動する熱水タービ
ン側に配置され上記蒸気及び熱水を蓄積するアキュムレ
ータ、同アキュムレータよりの上記蒸気及び熱水の熱を
動力に変換する熱水タービン、上記タービンの排気及び
ドレンが投入され上記タービンの排気が凝縮される復水
器を備えたことを特徴とする廃熱回収装置。1. A hot water generator in which feed water preheated by the scavenging air of the diesel engine is introduced and absorbs the heat of the engine's exhaust gas to form a two-phase flow of steam and hot water.1 Hot water turbine side that drives the generator. an accumulator disposed in the accumulator for accumulating the steam and hot water; a hot water turbine for converting the heat of the steam and hot water from the accumulator into power; the exhaust gas and drain from the turbine are fed into the accumulator, and the exhaust gas from the turbine is condensed. A waste heat recovery device characterized by being equipped with a condenser.
JP59079359A 1984-04-21 1984-04-21 Waste heat recovery device Pending JPS60224906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59079359A JPS60224906A (en) 1984-04-21 1984-04-21 Waste heat recovery device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59079359A JPS60224906A (en) 1984-04-21 1984-04-21 Waste heat recovery device

Publications (1)

Publication Number Publication Date
JPS60224906A true JPS60224906A (en) 1985-11-09

Family

ID=13687700

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59079359A Pending JPS60224906A (en) 1984-04-21 1984-04-21 Waste heat recovery device

Country Status (1)

Country Link
JP (1) JPS60224906A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1752615A2 (en) * 2005-03-31 2007-02-14 Air Products and Chemicals, Inc. Process to convert low grade heat source into power using dense fluid expander
WO2012048959A1 (en) * 2010-10-13 2012-04-19 Robert Bosch Gmbh Device and method for the recovery of waste heat of an internal combustion engine
CN111075538A (en) * 2018-10-18 2020-04-28 大众汽车有限公司 System for extracting water from exhaust gases of an internal combustion engine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1752615A2 (en) * 2005-03-31 2007-02-14 Air Products and Chemicals, Inc. Process to convert low grade heat source into power using dense fluid expander
EP1752615A3 (en) * 2005-03-31 2011-03-16 Air Products and Chemicals, Inc. Process to convert low grade heat source into power using dense fluid expander
WO2012048959A1 (en) * 2010-10-13 2012-04-19 Robert Bosch Gmbh Device and method for the recovery of waste heat of an internal combustion engine
CN103154442A (en) * 2010-10-13 2013-06-12 罗伯特·博世有限公司 Device and method for the recovery of waste heat of an internal combustion engine
CN103154442B (en) * 2010-10-13 2015-05-20 罗伯特·博世有限公司 Device and method for the recovery of waste heat of an internal combustion engine
CN111075538A (en) * 2018-10-18 2020-04-28 大众汽车有限公司 System for extracting water from exhaust gases of an internal combustion engine
CN111075538B (en) * 2018-10-18 2022-07-05 大众汽车有限公司 System for extracting water from exhaust gases of an internal combustion engine

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