KR101261861B1 - Brown gas generating system using waste heat collecting device of engine - Google Patents

Brown gas generating system using waste heat collecting device of engine Download PDF

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KR101261861B1
KR101261861B1 KR1020110011923A KR20110011923A KR101261861B1 KR 101261861 B1 KR101261861 B1 KR 101261861B1 KR 1020110011923 A KR1020110011923 A KR 1020110011923A KR 20110011923 A KR20110011923 A KR 20110011923A KR 101261861 B1 KR101261861 B1 KR 101261861B1
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South Korea
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brown gas
working fluid
engine
waste heat
steam
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KR1020110011923A
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KR20120091864A (en
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이승재
박희준
김경기
김용규
김은경
최재웅
허다라
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삼성중공업 주식회사
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    • 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
    • F02B43/00—Engines characterised by operating on gaseous fuels; Plants including such engines
    • F02B43/10—Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
    • C25B1/00—Electrolytic production of inorganic compounds or non-metals
    • C25B1/01—Products
    • C25B1/02—Hydrogen or oxygen
    • C25B1/04—Hydrogen or oxygen by electrolysis of water
    • C25B1/044—Hydrogen or oxygen by electrolysis of water producing mixed hydrogen and oxygen gas, e.g. Brown's gas [HHO]
    • 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
    • F01K27/00—Plants for converting heat or fluid energy into mechanical energy, not otherwise provided for
    • 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
    • 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
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/36—Hydrogen production from non-carbon containing sources, e.g. by water electrolysis
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
    • 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
    • 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
    • Y02T10/30—Use of alternative fuels, e.g. biofuels

Abstract

본 발명은 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템에 관한 것이다. 이는 순환라인을 따라 작동유체를 순환시키며, 순환 중의 작동유체를 엔진의 배기가스와 열교환시켜 과열증기를 생산하는 폐열회수부와; 폐열회수부로부터 배출되는 과열증기에 의해 회전하며 회전토오크를 발생하는 증기터어빈과; 증기터어빈에 연동하여 전기를 생산하는 메인발전기와; 메인발전기에서 발생한 전기를 공급받아 브라운가스를 생산하는 브라운가스 발생유니트를 포함하는 것을 특징으로 한다.The present invention relates to a brown gas production system using the engine waste heat recovery apparatus. It circulates the working fluid along the circulation line, the waste heat recovery unit for producing superheated steam by heat exchange the working fluid in the circulation with the exhaust gas of the engine; A steam turbine rotating by superheated steam discharged from the waste heat recovery unit and generating a rotating torque; A main generator for producing electricity in conjunction with the steam turbine; It is characterized in that it comprises a brown gas generating unit for producing brown gas by receiving electricity generated from the main generator.

Description

엔진 폐열 회수장치를 이용한 브라운가스 생산시스템{Brown gas generating system using waste heat collecting device of engine}Brown gas generating system using waste heat collecting device of engine

본 발명은 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템에 관한 것이다.The present invention relates to a brown gas production system using the engine waste heat recovery apparatus.

브라운가스는 산소원자와 수소원자가 2:1로 혼합된 상태의 연소성 가스로서, 물의 전기분해시 산소원자와 수소원자의 해리작용으로 발생된다. 상기한 브라운가스는 기존 화석연료에 비해 발열량이 3배에 이를 정도로 크고 화염전파속도도 현저히 빨라, 기존 화석연료와 혼소시 화석연료의 연소를 촉진시켜 완전연소에 도움을 주고, 화석연료의 가연한계를 넓히는 화염안정제의 역할을 하며, 더 나아가 화석연료의 초희박 연소를 가능케하여 연소온도를 낮추어 NOx를 저감시킴은 물론 CO2, SOx도 감소시킨다.Brown gas is a combustible gas in which oxygen atoms and hydrogen atoms are 2: 1 mixed, and are generated by dissociation of oxygen atoms and hydrogen atoms during electrolysis of water. Brown gas is 3 times higher than conventional fossil fuel, and the flame propagation speed is remarkably fast. It promotes the combustion of fossil fuel when mixed with existing fossil fuel, and helps to burn completely. It acts as a flame stabilizer to widen and further reduces the NOx by lowering the combustion temperature by enabling ultra-thin burning of fossil fuels, as well as reducing CO2 and SOx.

상기한 바와 같은 브라운가스의 여러 장점을 활용하기 위해, 브라운가스를 엔진에 공급하여 화석연료와 혼소시킴으로써 엔진의 고효율을 도모하는 기술이 개발되어 있다.In order to take advantage of the various advantages of the brown gas as described above, a technology for promoting high efficiency of the engine has been developed by supplying the brown gas to the engine and mixed with fossil fuel.

도 1은 종래 브라운가스 생산시스템 및 상기 브라운가스를 원료의 일부로 사용하는 엔진을 함께 도시한 도면이다.1 is a view showing a conventional brown gas production system and the engine using the brown gas as part of the raw material.

도시한 바와같이, 종래의 브라운가스 생산시스템은, 외부로부터 제공된 전력에 의해 동작하여 브라운가스를 발생하는 브라운가스 발생유니트(19)와, 상기 브라운가스 발생유니트(19)에 전기를 공급하기 위한 것으로서, 다수의 발전엔진(13)과, 각 발전엔진(13)에 연결되며 발전엔진(13)에 의해 회전하며 전기를 생산하는 발전기(15)와, 상기 발전기(15)에서 생산된 전력을 브라운가스 발생유니트(19)로 인가하는 배전반(switchboard)(17)으로 구성된다. 상기 발전엔진(13)은 화석연료로 구동되는 디젤엔진이다.As shown, the conventional brown gas production system is for supplying electricity to the brown gas generating unit 19 and brown gas generating unit 19 which generate brown gas by operating by electric power provided from the outside. , A plurality of power generation engines 13, generators 15 connected to each of the power generation engines 13 and rotating by the power generation engines 13 to produce electricity, and the power produced by the power generators 15 is Brown gas. It consists of a switchboard 17 to be applied to the generating unit 19. The power generation engine 13 is a diesel engine driven by fossil fuel.

상기 브라운가스 발생유니트(19)는 배전반(17)과 전기적으로 접속되며 배전반(17)으로부터 전력을 인가받아 브라운가스를 생산한다. 상기 브라운가스 발생유니트(19)에서 생산된 브라운가스는 브라운가스 공급파이프(21)를 통해 메인엔진(11)으로 공급된다. 상기 메인엔진(11)으로 공급되는 브라운가스는 엔진의 연소실 내에서 화석연료와 함께 혼소된다.The brown gas generating unit 19 is electrically connected to the switchboard 17 and receives brown electric power from the switchboard 17. The brown gas produced by the brown gas generating unit 19 is supplied to the main engine 11 through the brown gas supply pipe 21. Brown gas supplied to the main engine 11 is mixed with fossil fuel in the combustion chamber of the engine.

그런데 상기한 종래의 브라운가스 생산시스템은, 브라운가스를 생산하기 위하여, 다량의 디젤엔진을 소모하는 발전용 엔진(13)을 사용해야 한다는 문제를 갖는다. 이는 메인엔진(11)의 연료소모를 줄이기 위해 발전엔진(13)의 연료소모를 증가시킨다는, 브라운가스 사용의 근본 취지에 어긋나는 것이다.However, the conventional brown gas production system described above has a problem of using a power generation engine 13 that consumes a large amount of diesel engine in order to produce brown gas. This is contrary to the basic intention of using Brown Gas, which increases the fuel consumption of the power generation engine 13 to reduce the fuel consumption of the main engine 11.

본 발명은 상기 문제점을 해소하고자 창출한 것으로서, 메인엔진에서 발생하는 폐열을 이용하여 전기를 생산하고 이를 브라운가스 생산에 사용하므로 브라운가스를 얻기 위한 연료의 소모가 없는 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템을 제공함에 목적이 있다.The present invention has been made to solve the above problems, and by using the waste heat generated from the main engine to produce electricity and use it for the production of brown gas, brown gas using the engine waste heat recovery device without the consumption of fuel to obtain brown gas The purpose is to provide a production system.

상기 목적을 달성하기 위한 본 발명의 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템은, 순환라인을 따라 작동유체를 순환시키며, 순환 중의 작동유체를 엔진의 배기가스와 열교환시켜 과열증기를 생산하는 폐열회수부와; 상기 폐열회수부로부터 배출되는 과열증기에 의해 회전하며 회전토오크를 발생하는 증기터어빈과; 상기 증기터어빈에 연동하여 전기를 생산하는 메인발전기와; 상기 메인발전기에서 발생한 전기를 공급받아 브라운가스를 생산하는 브라운가스 발생유니트를 포함하는 것을 특징으로 한다.Brown gas production system using the engine waste heat recovery apparatus of the present invention for achieving the above object, circulating the working fluid along the circulation line, the waste heat recovery to produce the superheated steam by heat exchange the working fluid in the circulation with the exhaust gas of the engine Wealth; A steam turbine rotating by superheated steam discharged from the waste heat recovery unit and generating a rotating torque; A main generator for producing electricity in conjunction with the steam turbine; It characterized in that it comprises a brown gas generating unit for producing brown gas by receiving electricity generated from the main generator.

또한, 상기 메인발전기에서 생산된 전기를 저장하며, 필요시 상기 브라운가스 발생유니트로 전기를 공급하는 축전부를 더 포함하는 것을 특징으로 한다.The apparatus may further include a power storage unit configured to store electricity produced by the main generator and supply electricity to the brown gas generating unit when necessary.

아울러, 상기 브라운가스 발생유니트에는, 상기 메인발전기의 비동작시 작동하여 전기를 생산하고, 생산된 전기를 상기 브라운가스 발생유니트로 인가하는 예비발전부가 더 구비된 것을 특징으로 한다.In addition, the brown gas generating unit, it is characterized in that the pre-generation unit for operating the non-operation of the main generator to produce electricity, and to apply the produced electricity to the brown gas generating unit.

또한, 상기 폐열회수부는; 상기 엔진의 배기가스가 배출되는 배기관에 장착되며, 그 내부에 작동유체를 배기가스와 접촉시켜 과열증기를 발생하는 증기과열부를 갖는 이코노마이저와, 상기 증기과열부에서 발생한 과열증기를 상기 증기터어빈으로 공급하는 증기공급라인과, 상기 증기터어빈을 통과한 증기를 응축시키는 응축기와, 상기 응축기를 통과한 작동유체를 상기 증기과열부로 유도하는 회수라인과, 상기 작동유체를 펌핑하여 순환시키는 펌프를 포함하는 것을 특징으로 한다.In addition, the waste heat recovery unit; An economizer mounted on an exhaust pipe through which the exhaust gas of the engine is discharged, and having an overheating unit for generating a superheated steam by contacting the working fluid with the exhaust gas, and supplying the superheated steam generated in the steam superheating unit to the steam turbine. And a steam supply line, a condenser for condensing the steam passing through the steam turbine, a recovery line for guiding the working fluid passing through the condenser to the steam superheater, and a pump for pumping and circulating the working fluid. It features.

또한, 상기 이코노마이저의 내부에는 상기 작동유체를 배기가스와 열교환시켜 가열하기 위한 증발부가 더 구비되며, 상기 회수라인에는 회수라인을 따라 증기과열부로 향하는 작동유체가 그 내부를 경유하는 드럼이 배치되고, 상기 드럼과 상기 증발부의 사이에는, 상기 증기과열부로 유입되기 전의 작동유체를 가열 증발시키는 것으로서, 드럼에 유입된 작동유체를 상기 증발뷰로 보내어 증발시키고, 상기 증발부를 통과한 작동유체를 드럼으로 귀환시키는 순환라인이 배치된 것을 특징으로 한다.In addition, an inside of the economizer is further provided with an evaporator for heat-exchanging the working fluid with the exhaust gas, the recovery line is provided with a drum through which the working fluid to the steam superheater along the recovery line passes through the interior, Between the drum and the evaporator, heat evaporating the working fluid before flowing into the steam superheater, sending the working fluid introduced into the drum to the evaporation view to evaporate, and returning the working fluid passed through the evaporator to the drum. Characterized in that the circulation line is arranged.

또한, 상기 순환라인은, 상기 작동유체가 상기 증발부로 유입되도록 펌핑하는 펌프를 포함하는 것을 특징으로 한다.In addition, the circulation line, characterized in that it comprises a pump for pumping the working fluid into the evaporator.

아울러, 상기 증기과열부와 증발부는 하나의 세트를 이루되, 상기 배기관의 하류 방향으로, 제 1증기과열부, 제 1증발부, 제 2증기과열부, 제 2증발부가 차례로 배치되며, 상기 드럼은; 제 1순환라인을 통해 상기 제 1증발부와 연결되는 고압드럼과, 제 2순환라인을 통해 상기 제 2증발부와 연결되는 저압드럼으로 구성되는 것을 특징으로 한다.In addition, the steam superheater and the evaporator constitute a set, and in the downstream direction of the exhaust pipe, a first steam superheater, a first evaporator, a second steam superheater, and a second evaporator are sequentially disposed, and the drum silver; A high pressure drum is connected to the first evaporator through a first circulation line, and a low pressure drum is connected to the second evaporator through a second circulation line.

또한, 상기 회수라인은; 상기 엔진에 구비되어 있는 에어쿨러를 통과하도록 배관되어, 회수라인을 내부 유동하는 작동유체는 에어쿨러를 통과하며 엔진에서 발생하는 열을 받아 가열되는 것을 특징으로 한다.In addition, the recovery line; The working fluid which is piped to pass through the air cooler provided in the engine, and flows through the recovery line, passes through the air cooler and is heated by receiving heat generated from the engine.

또한, 상기 회수라인은; 상기 엔진에 구비되어 있는 냉각재킷을 통과하도록 배관되어, 회수라인을 내부 유동하는 작동유체는 냉각재킷을 통과하며 냉각재킷의 열을 전달받아 가열되는 것을 특징으로 한다.In addition, the recovery line; The working fluid which is piped to pass through the cooling jacket provided in the engine and flows through the recovery line passes through the cooling jacket and is heated by receiving heat from the cooling jacket.

상기와 같이 이루어지는 본 발명의 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템은, 메인엔진에서 발생하는 폐열을 이용하여 전기를 생산하고 이를 브라운가스 생산에 사용하므로 브라운가스를 얻기 위하여 추가적인 발전기 엔진을 구동할 필요가 없게 되므로 그만큼 연료의 소모가 없다.Brown gas production system using the engine waste heat recovery device of the present invention made as described above, by using the waste heat generated from the main engine to produce electricity and use it for the production of brown gas to drive additional generator engine to obtain Brown gas Since there is no need for fuel consumption.

도 1은 종래 브라운가스 생산시스템 및 상기 브라운가스를 원료의 일부로 사용하는 엔진을 함께 도시한 도면이다.
도 2는 본 발명의 일 실시예에 따른 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템을 설명하기 위하여 도시한 계통도이다.
도 3은 본 발명의 일 실시예에 따른 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템의 다른 예를 나타내 보인 도면이다.1 is a view showing a conventional brown gas production system and the engine using the brown gas as part of the raw material.
Figure 2 is a schematic diagram illustrating a brown gas production system using the engine waste heat recovery apparatus according to an embodiment of the present invention.
3 is a view showing another example of a brown gas production system using the engine waste heat recovery apparatus according to an embodiment of the present invention.

이하, 본 발명에 따른 하나의 실시예를 첨부된 도면을 참조하여 보다 상세히 설명하기로 한다.Hereinafter, one embodiment according to the present invention will be described in detail with reference to the accompanying drawings.

도 2는 본 발명의 일 실시예에 따른 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템을 설명하기 위하여 도시한 계통도이다.Figure 2 is a schematic diagram illustrating a brown gas production system using the engine waste heat recovery apparatus according to an embodiment of the present invention.

도시한 바와같이, 본 실시예에 따른 브라운가스 생산시스템(31)은, 메인엔진(33)으로부터 배출되는 폐열을 회수하는 폐열회수부(71)와, 상기 폐열회수부(71)로부터 회수된 과열증기에 의해 동작하는 증기터어빈(43)과, 상기 증기터어빈(43)에 연동하며 전기를 생산하는 메인발전기(45)와, 상기 메인발전기(45)에서 생산된 전력을 분배하는 배전반(17)과, 상기 배전반(17)의 전기를 인가받아 브라운가스를 생산하는 브라운가스 발생유니트(19)와, 상기 배전반(17)에 전기를 공급하는 예비발전부(73)를 포함한다.As illustrated, the brown gas production system 31 according to the present embodiment includes a waste heat recovery unit 71 for recovering waste heat discharged from the main engine 33 and overheat recovered from the waste heat recovery unit 71. A steam turbine 43 operated by steam, a main generator 45 interoperating with the steam turbine 43 to produce electricity, and a switchboard 17 distributing electric power produced by the main generator 45; And a brown gas generating unit 19 for producing brown gas by receiving electricity from the switchboard 17 and a preliminary power generation unit 73 for supplying electricity to the switchboard 17.

상기 메인엔진(33)은 화석연료를 사용하는 박용엔진으로서 선박의 추진을 담당한다. 상기 메인엔진(33)에서 발생하는 고온의 배기가스는 배기관(35)을 통해 외부로 배출된다. 아울러 상기 메인엔진(33)에는 에어쿨러(33a)와 냉각재킷(33b)이 구비된다. The main engine 33 is responsible for the propulsion of the ship as a marine engine using fossil fuel. The high temperature exhaust gas generated from the main engine 33 is discharged to the outside through the exhaust pipe 35. In addition, the main engine 33 is provided with an air cooler 33a and a cooling jacket 33b.

한편, 상기 폐열회수부(71)는, 상기 배기관(35)에 장착되며 배기관을 통과하는 배기가스의 열을 전달받는 이코노마이저(37)와, 작동유체를 그 내부에 순환시키며 이코노마이저를 통과시키는 제 1,2증기공급라인(55,57)과 회수라인(53,59,61)과, 응축기(49)와 펌프(50,52) 등을 포함한다. 상기 작동유체는 물이다.On the other hand, the waste heat recovery unit 71 is mounted on the exhaust pipe 35, the economizer 37 receives the heat of the exhaust gas passing through the exhaust pipe, and the first to pass the economizer circulating the working fluid therein And two steam supply lines (55, 57) and recovery lines (53, 59, 61), condenser (49), pumps (50, 52) and the like. The working fluid is water.

상기 이코노마이저(37)는 그 내부에, 배기관(35)의 하류 방향으로, 제 1증기과열부(37a), 제 1증발부(37b), 제 2증기과열부(37c), 제 2증발부(37d)를 갖는다. 상기 제 1,2증기과열부(37a,37c) 및 제 1,2증발부(37b,37d)는 모두 배기가스로부터 전달받은 열을 작동유체로 전달하는 역할을 한다.The economizer 37 has a first steam superheater 37a, a first evaporator 37b, a second vapor superheater 37c, and a second evaporator in a downstream direction of the exhaust pipe 35 therein. 37d). The first and second steam superheaters 37a and 37c and the first and second steam evaporators 37b and 37d both serve to transfer heat received from the exhaust gas to the working fluid.

상기 제 1,2증발부(37b,37d)는 증발기(evaporator)로서 그 내부를 통과하는 작동유체를 증발시킨다. 또한 제 1,2증기과열부(37a,37c)는 과열기(superheater)이며, 증기상태로 유입한 증기를 끓는점 이상의 온도로 가열한다.The first and second evaporators 37b and 37d evaporate the working fluid passing through the inside as an evaporator. In addition, the first and second steam superheaters 37a and 37c are superheaters and heat the steam introduced into the steam at a temperature higher than the boiling point.

상기 제 1,2증기과열부(37a,37c)를 통과하며 과열된 증기는 제1,2증기공급라인(55,57)을 내부 유동하여 증기터어빈(43)으로 이동하고 증기터어빈(43)을 회전시킨다. 상기 증기터어빈(43)이 동작함에 따라 증기터어빈(43)에 연결되어 있는 메인발전기(45)가 전기를 생산하게 됨은 물론이다. 아울러 과열증기를 이용해 증기터어빈을 회전시키는 원리는 공지의 증기터어빈 구동원리와 같다.The superheated steam passing through the first and second steam superheating units 37a and 37c flows through the first and second steam supply lines 55 and 57 to move to the steam turbine 43 and moves the steam turbine 43. Rotate As the steam turbine 43 operates, the main generator 45 connected to the steam turbine 43 produces electricity. In addition, the principle of rotating the steam turbine using superheated steam is the same as the known steam turbine driving principle.

상기 증기터어빈(43)을 동작시킨 과열증기는 응축기(49)를 통과하며 응축되고, 펌프(50)에 의해 온수챔버(hot well)(51)로 이동한다.The superheated steam operated by the steam turbine 43 is condensed while passing through the condenser 49 and moved to the hot well 51 by the pump 50.

상기 온수챔버(51)에 임시 저장되어 있는 작동유체는 펌프(52)의 작동에 의해 회수라인(53)을 따라 이동한다. 상기 회수라인(53)은 작동유체를, 후술할 고압드럼(39) 및 저압드럼(41)으로 유도하는 파이프로서, 메인엔진(33)의 에어쿨러(33a)와 냉각재킷(33b)을 경유한다. 따라서 상기 회수라인(53)을 내부 유동하는 작동유체는 유동 중 에어쿨러(33a)와 냉각재킷(33b)의 열을 전달받아 가열된다. 본 도면에서는 상기 회수라인(53)이 에어쿨러(33a)와 냉각재킷(33b)에 직렬로 연결되어 있으나, 회수라인(53)의 배관방식은 얼마든지 변경 가능하다. 가령 회수라인(53)을 에어쿨러(33a) 및 냉각재킷(33b)에 병렬로 연결할 수도 있음은 물론이다.The working fluid temporarily stored in the hot water chamber 51 moves along the recovery line 53 by the operation of the pump 52. The recovery line 53 is a pipe for guiding the working fluid to the high pressure drum 39 and the low pressure drum 41 to be described later, and passes through the air cooler 33a and the cooling jacket 33b of the main engine 33. . Therefore, the working fluid flowing through the recovery line 53 is heated by receiving heat from the air cooler 33a and the cooling jacket 33b during the flow. In this figure, the recovery line 53 is connected to the air cooler 33a and the cooling jacket 33b in series, but the piping method of the recovery line 53 can be changed. For example, the recovery line 53 may be connected to the air cooler 33a and the cooling jacket 33b in parallel.

상기 고압드럼(39)은 외부로부터 밀폐된 케이스로서, 회수라인(53)을 따라 공급된 작동유체를 받아들여 그 내부에 임시 저장하고 제 1회수라인(59)을 통해 제 1증기과열부(37a)로 보낸다. 또한 상기 저압드럼(41)도 밀폐케이스로서 상기 회수라인(53)을 통해 회수된 작동유체의 일부를 그 내부에 일단 받아들인 후 제 2회수라인(61)을 통해 제 2증기과열부(37c)로 보낸다. The high pressure drum 39 is a case sealed from the outside, and receives the working fluid supplied along the recovery line 53 and temporarily stores the working fluid therein, and the first steam superheater 37a through the first recovery line 59. Send to). In addition, the low-pressure drum 41 also receives a part of the working fluid recovered through the recovery line 53 as a sealed case therein, and then the second steam superheater 37c through the second recovery line 61. Send to.

한편, 상기 고압드럼(39)은 제 1순환라인(63)을 통해 제 1증발부(37b)와 연결된다. 상기 제 1순환라인(63)은 상기 제 1증발부(37b)를 통과하고 양단부가 고압드럼(39)에 연통하는 파이프이다. 따라서 상기 고압드럼(39)에 수용되어 있는 작동유체는 제 1순환라인(63)상에 설치되어 있는 펌프를 통해 배출되어 제 1증발부(37b)에 다녀와 증기상태가 된다. On the other hand, the high pressure drum 39 is connected to the first evaporator 37b through the first circulation line 63. The first circulation line 63 is a pipe passing through the first evaporation part 37b and both ends communicating with the high pressure drum 39. Therefore, the working fluid accommodated in the high pressure drum 39 is discharged through the pump installed on the first circulation line 63 and goes to the first evaporator 37b to become a vapor state.

상기 과정을 통해 증기상태가 된 작동유체는 제 1회수라인(59)을 통해 제 1증기과열부(37a)로 이동하여 과열증기가 된 후 상기 증기터어빈(43)으로 이동한다.The working fluid, which has become a steam state through the above process, moves to the first steam superheat unit 37a through the first recovery line 59, and then moves to the steam turbine 43 after it becomes superheated steam.

또한 상기 저압드럼(41)도 제 2순환라인(65)을 통해 제 2증발부(37d)와 연통한다. 상기 제 2순환라인(65)은 상기 제 2증발부(37d)를 통과하고 양단부가 저압드럼(41)에 연결된 파이프이다. 상기 저압드럼(41)에 수용되어 있는 작동유체는 제 2순환라인(65)상에 설치되어 있는 펌프를 통해 배출되어 제 2증발부(37d)를 거쳐 증기상태로 변화한 후 저압드럼(41)으로 돌아온다.The low pressure drum 41 also communicates with the second evaporation unit 37d via the second circulation line 65. The second circulation line 65 is a pipe passing through the second evaporation unit 37d and both ends connected to the low pressure drum 41. The working fluid accommodated in the low pressure drum 41 is discharged through a pump installed on the second circulation line 65 to change into a vapor state through the second evaporation part 37d and then the low pressure drum 41. Return to

상기 과정을 통해 증기상태로 변화한 작동유체는 제 2회수라인(61)을 통해 제 2증기과열부(37c)로 이동하여 과열증기로 바뀐 후 증기터어빈(43)으로 이동한다.The working fluid changed to the steam state through the above process is moved to the second steam superheater 37c through the second recovery line 61, is changed to superheated steam, and then moves to the steam turbine 43.

결국 상기 폐열회수부(71)에 의해 메인발전기(45)가 작동하여 전기가 발생한다.As a result, the main generator 45 is operated by the waste heat recovery unit 71 to generate electricity.

상기 메인발전기(45)에서 생산된 전기는 배전반(17)을 거쳐 브라운가스 발생유니트(19)로 전달된다. 상기 브라운가스 발생유니트(19)는 공지의 장치로서, 외부로부터 인가된 전기에 의해 동작하여 상기한 브라운 가스를 발생한다.The electricity produced by the main generator 45 is transferred to the brown gas generating unit 19 via the switchboard 17. The brown gas generating unit 19 is a known device and operates by electricity applied from the outside to generate the brown gas.

도면부호 67은 브라운가스 공급파이프이다. 상기 브라운가스 공급파이프(67)는 생산된 브라운가스를 메인엔진(33)의 연소실로 공급하는 통로이다. Reference numeral 67 is a brown gas supply pipe. The brown gas supply pipe 67 is a passage for supplying the produced brown gas to the combustion chamber of the main engine 33.

또한 도면부호 73은 예비발전부이다. 상기 예비발전부(73)는, 평상시 사용되지 않고, 폐열회수부(71)가 동작하지 않을 때나 또는 가령 메인엔진(33)의 시동 초기에 폐열회수부(71)의 기능이 정상상태로 올라서지 않았을 때 작동하여 브라운가스를 생산한다.Reference numeral 73 denotes a preliminary power generation unit. The preliminary power generation unit 73 is not normally used, and the function of the waste heat recovery unit 71 is raised to a normal state when the waste heat recovery unit 71 does not operate or at the beginning of the start of the main engine 33, for example. When not in operation, it produces brown gas.

상기 예비발전부(73)는, 다수의 발전엔진(13)과, 각 발전엔진(13)에 연결되며 발전엔진(13)으로부터 회전력을 받아 작동하여 전기를 생산하고 이를 상기 배전반(17)으로 전달하는 다수의 발전기(15)를 포함한다. 상기 발전엔진(13)은 디젤엔진이다.The preliminary power generation unit 73 is connected to a plurality of power generation engines 13 and each power generation engine 13 to operate by receiving rotational force from the power generation engine 13 to produce electricity and transfer them to the switchboard 17. It includes a plurality of generators (15). The power generation engine 13 is a diesel engine.

도 3은 본 발명의 일 실시예에 따른 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템의 다른 예를 나타내 보인 도면이다.3 is a view showing another example of a brown gas production system using the engine waste heat recovery apparatus according to an embodiment of the present invention.

상기한 도면부호와 동일한 도면부호는 동일한 기능의 동일한 부재를 가리킨다.The same reference numerals as the above reference numerals denote the same members having the same function.

도면을 참조하면, 상기 배전반(17)에 축전부(69)가 연결되어 있음을 알 수 있다. 상기 축전부(69)는 배전반(17)으로부터 전기를 공급받아 그 내부에 저장하고 필요시 브라운가스 발생유니트(19)로 공급한다. 상기 축전부(69)로서 2차전지를 사용할 수 있다.Referring to the drawings, it can be seen that the electrical storage unit 69 is connected to the switchboard 17. The power storage unit 69 receives electricity from the switchboard 17 and stores it therein and supplies the brown gas generating unit 19 as necessary. A secondary battery may be used as the power storage unit 69.

이상, 본 발명을 구체적인 실시예를 통하여 상세하게 설명하였으나, 본 발명은 상기 실시예에 한정하지 않고, 본 발명의 기술적 사상의 범위내에서 통상의 지식을 가진 자에 의하여 여러 가지 변형이 가능하다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

11:메인엔진　　　　　 13:발전엔진　　　　　　　　 15:발전기
17:배전반　　　　　　　 19:브라운가스발생유니트　 21:공급파이프
31:브라운가스생산시스템　　 33:메인엔진　　　　 33a:에어쿨러
33b:냉각재킷　　　　　　　 35:배기관　　　　　　　 37:이코노마이저
37a:제 1증기과열부　 37b:제 1증발부　　 37c:제 2증기과열부
37d:제 2증발부　　　　　 39:고압드럼　　　　　 41:저압드럼
43:증기터어빈　　　　　　 45:메인발전기　　　 49:응축기
50:펌프　　　　　　　　　　　　 51:온수챔버　　　　　 52:펌프
53:회수라인　　　　　　　　 55:제 1증기공급라인　　　 57:제 2증기공급라인
59:제 1회수라인　　　　 61:제 2회수라인　 63:제 1순환라인
65:제 2순환라인　　　　 67:브라운가스공급파이프　　 69:축전부
71:폐열회수부　　　　　　 73:예비발전부11: Main engine 13: Power generation engine 15: Generator
17: switchboard 19: brown gas generating unit 21: supply pipe
31: Brown gas production system 33: Main engine 33a: Air cooler
33b: cooling jacket 35: exhaust pipe 37: economizer
37a: 1st steam superheat part 37b: 1st evaporation part 37c: 2nd steam superheat part
37d: second evaporation part 39: high pressure drum 41: low pressure drum
43: steam turbine 45: main generator 49: condenser
50: pump 51: hot water chamber 52: pump
53: recovery line 55: 1st steam supply line 57: 2nd steam supply line
59: 1st recovery line 61: 2nd recovery line 63: 1st circulation line
65: second circulation line 67: brown gas supply pipe 69: power storage
71: waste heat recovery unit 73: preliminary power generation unit

Claims (9)

순환라인을 따라 작동유체를 순환시키며, 순환 중의 작동유체를 엔진의 배기가스와 열교환시켜 과열증기를 생산하는 폐열회수부와;
상기 폐열회수부로부터 배출되는 과열증기에 의해 회전하며 회전토오크를 발생하는 증기터어빈과;
상기 증기터어빈에 연동하여 전기를 생산하는 메인발전기와;
상기 메인발전기에서 발생한 전기를 공급받아 브라운가스를 생산하는 브라운가스 발생유니트;를 포함하며,
상기 폐열회수부는;
상기 엔진의 배기가스가 배출되는 배기관에 장착되며, 그 내부에 작동유체를 상기 배기가스와 접촉시켜 과열증기를 발생하는 증기과열부를 갖는 이코노마이저와,
상기 증기과열부에서 발생한 과열증기를 상기 증기터어빈으로 공급하는 증기공급라인과,
상기 증기터어빈을 통과한 증기를 응축시키는 응축기와,
상기 응축기를 통과한 작동유체를 상기 증기과열부로 유도하는 회수라인과,
상기 작동유체를 펌핑하여 순환시키는 펌프를 포함하고,
상기 이코노마이저의 내부에는 상기 작동유체를 배기가스와 열교환시켜 가열하기 위한 증발부가 구비되며,
상기 회수라인에는 회수라인을 따라 증기과열부로 향하는 작동유체가 그 내부를 경유하는 드럼이 배치되고,
상기 드럼과 상기 증발부의 사이에는, 상기 증기과열부로 유입되기 전의 작동유체를 가열 증발시키는 것으로서, 드럼에 유입된 작동유체를 상기 증발부로 보내어 증발시키고, 상기 증발부를 통과한 작동유체를 드럼으로 귀환시키는 순환라인이 배치된 것을 특징으로 하는 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템.A waste heat recovery unit for circulating the working fluid along the circulation line and producing superheated steam by exchanging the working fluid in circulation with the exhaust gas of the engine;
A steam turbine rotating by superheated steam discharged from the waste heat recovery unit and generating a rotating torque;
A main generator for producing electricity in conjunction with the steam turbine;
It includes; Brown gas generating unit for producing brown gas by receiving electricity generated from the main generator;
The waste heat recovery unit;
An economizer mounted on an exhaust pipe through which the exhaust gas of the engine is discharged and having a steam superheater configured to generate a superheated steam by contacting the working fluid with the exhaust gas;
A steam supply line for supplying superheated steam generated in the steam superheater to the steam turbine;
A condenser for condensing the steam passed through the steam turbine,
A recovery line for guiding the working fluid passing through the condenser to the steam superheater;
A pump for pumping and circulating the working fluid,
Inside the economizer is provided with an evaporator for heating the working fluid by heat exchange with the exhaust gas,
The drum is provided with a drum through which the working fluid directed toward the steam superheater along the recovery line passes through the recovery line.
Between the drum and the evaporator, the working fluid before flowing into the steam superheater is evaporated by heating. The working fluid introduced into the drum is sent to the evaporator to evaporate, and the working fluid passed through the evaporator is returned to the drum. Brown gas production system using an engine waste heat recovery device, characterized in that the circulation line is arranged. 제 1항에 있어서,
상기 메인발전기에서 생산된 전기를 저장하며, 필요시 상기 브라운가스 발생유니트로 전기를 공급하는 축전부를 더 포함하는 것을 특징으로 하는 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템.The method of claim 1,
Brown gas production system using an engine waste heat recovery device, characterized in that for storing the electricity produced by the main generator, and supplying electricity to the brown gas generation unit if necessary. 제 1항 또는 제 2항에 있어서,
상기 브라운가스 발생유니트에는,
상기 메인발전기의 비동작시 작동하여 전기를 생산하고, 생산된 전기를 상기 브라운가스 발생유니트로 인가하는 예비발전부가 더 구비된 것을 특징으로 하는 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템.3. The method according to claim 1 or 2,
The brown gas generating unit,
Brown gas production system using an engine waste heat recovery device, characterized in that it further comprises a pre-generation unit for operating the non-operation of the main generator to produce electricity, and apply the generated electricity to the brown gas generation unit. 삭제delete 삭제delete 제 1항에 있어서,
상기 순환라인은,
상기 작동유체가 상기 증발부로 유입되도록 펌핑하는 펌프를 포함하는 것을 특징으로 하는 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템.The method of claim 1,
The circulation line,
Brown gas production system using an engine waste heat recovery device, characterized in that it comprises a pump for pumping the working fluid flows into the evaporator. 제 1항에 있어서,
상기 증기과열부와 증발부는 하나의 세트를 이루되, 상기 배기관의 하류 방향으로, 제 1증기과열부, 제 1증발부, 제 2증기과열부, 제 2증발부가 차례로 배치되며,
상기 드럼은;
제 1순환라인을 통해 상기 제 1증발부와 연결되는 고압드럼과,
제 2순환라인을 통해 상기 제 2증발부와 연결되는 저압드럼으로 구성되는 것을 특징으로 하는 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템.The method of claim 1,
The steam superheater and the evaporator constitute one set, and the first steam superheater, the first evaporator, the second steam superheater, and the second evaporator are sequentially disposed in the downstream direction of the exhaust pipe.
The drum;
A high pressure drum connected to the first evaporator through a first circulation line;
Brown gas production system using an engine waste heat recovery device, characterized in that consisting of a low-pressure drum connected to the second evaporator through a second circulation line. 제 1항에 있어서,
상기 회수라인은;
상기 엔진에 구비되어 있는 에어쿨러를 통과하도록 배관되어, 회수라인을 내부 유동하는 작동유체는 에어쿨러를 통과하며 엔진에서 발생하는 열을 받아 가열되는 것을 특징으로 하는 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템.The method of claim 1,
The recovery line is;
The working fluid, which is piped to pass through the air cooler provided in the engine and flows through the recovery line, passes through the air cooler and is heated by receiving heat generated from the engine, thereby producing brown gas using an engine waste heat recovery device. system. 제 1항에 있어서,
상기 회수라인은;
상기 엔진에 구비되어 있는 냉각재킷을 통과하도록 배관되어, 회수라인을 내부 유동하는 작동유체는 냉각재킷을 통과하며 냉각재킷의 열을 전달받아 가열되는 것을 특징으로 하는 엔진 폐열 회수장치를 이용한 브라운가스 생산시스템.The method of claim 1,
The recovery line is;
The working fluid, which is piped to pass through the cooling jacket provided in the engine and flows through the recovery line, passes through the cooling jacket and is heated by receiving heat from the cooling jacket to produce brown gas using an engine waste heat recovery device. system.
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