KR20170054216A - Power generation system - Google Patents

Power generation system Download PDF

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Publication number
KR20170054216A
KR20170054216A KR1020160065749A KR20160065749A KR20170054216A KR 20170054216 A KR20170054216 A KR 20170054216A KR 1020160065749 A KR1020160065749 A KR 1020160065749A KR 20160065749 A KR20160065749 A KR 20160065749A KR 20170054216 A KR20170054216 A KR 20170054216A
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South Korea
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steam
waste heat
engine
turbine
heat recovery
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KR1020160065749A
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Korean (ko)
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KR102197284B1 (en
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김정래
성창경
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현대중공업 주식회사
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
    • B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J3/00—Driving of auxiliaries
    • B63J3/02—Driving of auxiliaries from propulsion power plant
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/0027—Tanks for fuel or the like ; Accessories therefor, e.g. tank filler caps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid
    • B63B25/12—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed
    • B63B25/16—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed heat-insulated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H21/00—Use of propulsion power plant or units on vessels
    • B63H21/38—Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
    • B63J2/12—Heating; Cooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J3/00—Driving of auxiliaries
    • B63J3/04—Driving of auxiliaries from power plant other than propulsion power plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D15/00—Adaptations of machines or engines for special use; Combinations of engines with devices driven thereby
    • F01D15/10—Adaptations for driving, or combinations with, electric generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
    • F01D25/32—Collecting of condensation water; Drainage ; Removing solid particles
    • 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
    • F01K15/00—Adaptations of plants for special use
    • F01K15/02—Adaptations of plants for special use for driving vehicles, e.g. locomotives
    • F01K15/04—Adaptations of plants for special use for driving vehicles, e.g. locomotives the vehicles being waterborne vessels
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02C—GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS
    • F02C6/00—Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
    • B63B2035/4433—Floating structures carrying electric power plants
    • B63B2035/444—Floating structures carrying electric power plants for converting combustion energy into electric energy
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/03—Mixtures
    • F17C2221/032—Hydrocarbons
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/03—Treating the boil-off
    • F17C2265/031—Treating the boil-off by discharge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/06—Fluid distribution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2265/00—Effects achieved by gas storage or gas handling
    • F17C2265/07—Generating electrical power as side effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0102—Applications for fluid transport or storage on or in the water
    • F17C2270/0105—Ships
    • 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
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
    • 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
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/50—Measures to reduce greenhouse gas emissions related to the propulsion system
    • Y02T70/5218—Less carbon-intensive fuels, e.g. natural gas, biofuels
    • Y02T70/5281—

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

According to an embodiment of the present invention, a power generation system comprises: an engine producing energy with oil or gas; a waste heat recovery device recovering waste heat of the engine to generate steam; a steam turbine supplied with the steam generated in the water heat recovery device; and at least one steam consumer installed in a ship, and consuming the steam. A steam supply line connected from the waste heat recovery device to the steam consumer is provided to pass through the steam turbine.

Description

발전 시스템{Power generation system}Power generation system

본 발명은 발전 시스템에 관한 것이다.The present invention relates to a power generation system.

선박은 대량의 광물이나 원유, 천연가스, 또는 몇천 개 이상의 컨테이너 등을 싣고 대양을 항해하는 운송수단으로서, 강철로 이루어져 있고 부력에 의해 수선면에 부유한 상태에서 프로펠러의 회전을 통해 발생되는 추력을 통해 이동한다.A ship is a means of transporting large quantities of minerals, crude oil, natural gas, or several thousand containers. It is made of steel and buoyant to float on the water surface. The thrust generated by rotation of the propeller ≪ / RTI >

이러한 선박은 엔진을 구동함으로써 추력을 발생시키는데, 이때 엔진은 중유 또는 디젤을 사용하여 피스톤을 움직여서 피스톤의 왕복운동에 의해 크랭크 축이 회전되도록 하는 엔진으로서, 크랭크 축에 연결된 샤프트가 회전되어 프로펠러가 구동되도록 하는 것이 일반적이었다.In this case, the engine generates thrust by driving the engine. In this case, the engine is an engine that rotates the crankshaft by reciprocating movement of the piston by using a heavy oil or diesel to rotate the shaft. The shaft connected to the crankshaft is rotated, .

그러나 최근에는, 액화천연가스(Liquefied Natural Gas)를 운반하는 LNG 운반선에서 LNG를 연료로 사용하여 엔진을 구동하는 LNG 연료공급 방식이 사용되고 있으며, 이와 같이 엔진의 연료로 LNG를 사용하는 방식은 LNG 운반선 외의 다른 선박에도 적용되고 있다.In recent years, however, LNG fuel supply systems for driving an engine using LNG as a fuel have been used in an LNG carrier carrying Liquefied Natural Gas (LNG) It is also applied to other ships.

일반적으로, LNG는 청정연료이고 매장량도 석유보다 풍부하다고 알려져 있고, 채광과 이송기술이 발달함에 따라 그 사용량이 급격히 증가하고 있다. 이러한 LNG는 주성분인 메탄을 1기압 하에서 -162℃도 이하로 온도를 내려서 액체 상태로 보관하는 것이 일반적인데, 액화된 메탄의 부피는 표준상태인 기체상태의 메탄 부피의 600분의 1 정도이고, 비중은 0.42로 원유비중의 약 2분의 1이 된다. Generally, it is known that LNG is a clean fuel and its reserves are more abundant than petroleum, and its usage is rapidly increasing as mining and transfer technology develops. This LNG is generally stored in a liquid state at a temperature of -162 ° C. or below under 1 atm. The volume of liquefied methane is about one sixth of the volume of methane in a gaseous state, The specific gravity is 0.42, which is about one half of that of crude oil.

그러나 엔진이 구동되기 위해 필요한 온도 및 압력 등은, 탱크에 저장되어 있는 LNG의 상태와는 다를 수 있다. 따라서 최근에는 액체 상태로 저장되는 LNG의 온도 및 압력 등을 제어하여 엔진에 공급하는 기술에 대하여, 지속적인 연구 개발이 이루어지고 있다.However, the temperature and pressure required to drive the engine may be different from the state of the LNG stored in the tank. Therefore, in recent years, research and development have been made on the technology of controlling the temperature and pressure of the LNG stored in the liquid state and supplying the engine to the engine.

특히, LNG 운반선에서 선박에 사용되는 공정용 스팀을 생산하기 위하여 별도의 보일러를 설치하여 운전함으로써 공간 활용 제약과 설비에 대한 투자비용이 발생되는 우려가 있어 개선이 요구되는 실정이다.In particular, there is a concern that space utilization restriction and investment cost for equipment may be generated by installing a separate boiler to produce steam for use in a ship in an LNG carrier.

본 발명은 종래기술을 개선하고자 창출된 것으로서, 본 발명의 목적은 스팀을 생성하기 위해 스팀 생성용 보일러를 추가로 설치할 필요가 없어 비용을 절감할 수 있으며, 연료비를 절감할 수 있는 발전 시스템을 제공하기 위한 것이다.It is an object of the present invention to provide a power generation system capable of reducing a cost and saving a fuel cost since it is unnecessary to additionally provide a steam generating boiler for generating steam .

본 발명의 일 실시예에 따른 발전 시스템은, 오일 또는 가스를 이용하여 에너지를 생산하는 기관; 상기 기관의 폐열을 회수하여 스팀을 생성하는 폐열회수장치; 상기 폐열회수장치에서 생성된 스팀을 공급받는 스팀터빈; 및 선박에 설치되며 상기 스팀을 소비하는 적어도 하나 이상의 스팀 수요처를 포함하되, 상기 폐열회수장치에서 상기 스팀 수요처로 연결되는 스팀 공급라인은, 상기 스팀터빈을 경유하도록 마련되는 것을 특징으로 한다.The power generation system according to an embodiment of the present invention includes: an engine that generates energy using oil or gas; A waste heat recovery device for recovering waste heat of the engine to generate steam; A steam turbine supplied with steam generated in the waste heat recovering device; And at least one steam consumer installed in the ship and consuming the steam, wherein the steam supply line connected to the steam demander from the waste heat recovery device is provided to pass through the steam turbine.

구체적으로, 상기 기관에서 상기 폐열회수장치로 상기 기관의 폐열을 전달하는 폐열 전달라인이 마련될 수 있다.Specifically, a waste heat transfer line for transferring the waste heat of the engine to the waste heat recovery apparatus may be provided in the engine.

구체적으로, 상기 스팀 수요처에서 상기 폐열회수장치로 응축수를 전달하는 응축수 전달라인이 마련될 수 있다.Specifically, a condensate transfer line for transferring condensate water from the steam consumer to the waste heat recovery apparatus may be provided.

구체적으로, 상기 스팀터빈에서 상기 응축수 전달라인으로 응축수를 전달하는 응축수 회수라인이 마련될 수 있다.Specifically, a condensate recovery line for transferring condensate from the steam turbine to the condensate transfer line may be provided.

구체적으로, 상기 응축수 회수라인에 마련되는 콘덴서를 더 포함할 수 있다.Specifically, the condenser may further include a condenser provided in the condensate collection line.

구체적으로, 상기 콘덴서는, 상기 스팀터빈에서 배출되는 스팀 또는 응축수 중 스팀을 냉각하여 응축시킬 수 있다.Specifically, the condenser can cool and condense the steam in the steam discharged from the steam turbine or the condensed water.

구체적으로, 상기 스팀 수요처는, 선박에 설치되는 난방시스템 또는 유체의 가열을 위한 열교환기일 수 있다.Specifically, the steam consumer may be a heating system installed on a ship or a heat exchanger for heating a fluid.

본 발명에 따른 발전 시스템은, 추진 등을 위한 기관으로 사용되는 엔진 또는 가스터빈의 폐열을 이용하여 폐열회수장치 또는 스팀터빈의 공정에 필요한 스팀을 추출하여 사용함으로써 스팀 생성용 보일러를 별도로 설치할 필요가 없어 비용을 절감할 수 있을 뿐만 아니라 연료효율이 향상되어 연료비를 절감할 수 있다.The power generation system according to the present invention needs to separately install a steam generating boiler by extracting and using the steam required for the process of the waste heat recovery apparatus or the steam turbine by using the waste heat of an engine or a gas turbine used as an engine for propulsion Not only does it reduce costs, but it also improves fuel efficiency and reduces fuel costs.

도 1은 본 발명의 일 실시예에 따른 발전 시스템을 도시한 도면이다.1 is a view showing a power generation system according to an embodiment of the present invention.

본 발명의 목적, 특정한 장점들 및 신규한 특징들은 첨부된 도면들과 연관되어지는 이하의 상세한 설명과 바람직한 실시예로부터 더욱 명백해질 것이다. 본 명세서에서 각 도면의 구성요소들에 참조번호를 부가함에 있어서, 동일한 구성 요소들에 한해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 번호를 가지도록 하고 있음에 유의하여야 한다. 또한, 본 발명을 설명함에 있어서, 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명은 생략한다.BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

이하, 첨부된 도면을 참조하여 본 발명의 바람직한 실시예를 상세히 설명하기로 한다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 일 실시예에 따른 발전 시스템을 도시한 도면이다.1 is a view showing a power generation system according to an embodiment of the present invention.

도 1에 도시한 바와 같이, 본 발명의 일 실시예에 따른 발전 시스템(100)은 기관(110), 폐열회수장치(120), 스팀터빈(130), 스팀 수요처(140), 콘덴서(150)를 포함한다.1, a power generation system 100 according to an embodiment of the present invention includes an engine 110, a waste heat recovery device 120, a steam turbine 130, a steam consumer 140, a condenser 150, .

기관(110)은 선박에 마련되어 프로펠러(도시하지 않음)의 구동을 위해 추진력을 발생시킬 수 있도록, 오일 또는 가스를 이용하여 에너지를 생산할 수 있다. 예를 들어, 기관(110)은 가스터빈 또는 엔진일 수 있다. The engine 110 can generate energy using oil or gas so as to generate a propulsion force for driving a propeller (not shown) provided on the ship. For example, the engine 110 may be a gas turbine or an engine.

기관(110)은 특히, 가스터빈은 증발가스 또는 기화기(도시하지 않음)에 의해 강제로 생성된 증발가스를 공급받아 증발가스를 압축된 공기와 함께 연소해서 터빈 휠(도시하지 않음)을 회전시킬 수 있다. In particular, the engine 110 is supplied with an evaporative gas, which is forcibly generated by an evaporative gas or a vaporizer (not shown), and burns the evaporative gas together with the compressed air to rotate the turbine wheel (not shown) .

여기서, 가스터빈은 터빈발전기(도시하지 않음)와 연결될 수 있으며 가스터빈에 의해 증발가스가 소비됨에 따라 터빈발전기가 동력을 생산할 수 있다.Here, the gas turbine can be connected to a turbine generator (not shown), and the turbine generator can produce power as the evaporation gas is consumed by the gas turbine.

또한, 기관(110)의 폐열이 전달되도록 폐열 전달라인(111)이 마련될 수 있고, 폐열 전달라인(111)은 기관(110)에서 폐열회수장치(120)까지 연결될 수 있다.The waste heat transfer line 111 may be connected from the engine 110 to the waste heat recovery apparatus 120 so that waste heat of the engine 110 is transferred.

폐열회수장치(120)(HRSG)는 기관(110)의 폐열을 회수하여 스팀을 생성한다. 즉, 폐열회수장치(120)는 기관(110)에서 발생된 배기의 배기열을 이용하여 증기를 생성할 수 있는데, 폐열 전달라인(111)을 통해 공급된 폐열을 통해 폐열회수장치(120)가 증기를 생성하여 스팀터빈(130)으로 공급할 수 있다. The waste heat recovery apparatus 120 (HRSG) recovers the waste heat of the engine 110 to generate steam. That is, the waste heat recovery apparatus 120 can generate steam using the exhaust heat of the exhaust generated in the engine 110 through the waste heat supplied through the waste heat transfer line 111, And supply the steam to the steam turbine 130.

이때, 폐열회수장치(120)에서 생성되는 스팀의 온도는, 스팀터빈(130)의 작동에 의해 가열되는 스팀의 최고 온도에 비하여 상대적으로 낮은 온도로 이루어질 수 있으며, 섭씨 40도 내외로 이루어질 수 있다. 또한, 폐열회수장치(120)의 운행에 의한 스팀의 온도는 거의 일정하게 이루어질 수 있다.At this time, the temperature of the steam generated in the waste heat recovery apparatus 120 may be relatively low as compared with the maximum temperature of the steam heated by the operation of the steam turbine 130, and may be about 40 degrees Celsius . In addition, the temperature of the steam due to the operation of the waste heat recovery apparatus 120 can be made substantially constant.

이러한 폐열회수장치(120)는 가스터빈의 배기열을 이용하여 대기로 방출되는 폐열의 낭비를 방지할 수 있다. 다만, 스팀터빈(130)으로부터 배출되는 스팀을 활용하여 폐열회수장치(120)에서 생산되는 스팀의 온도보다 낮은 온도를 요구하는 조건에 대응시킬 수 있도록, 스팀터빈(130)으로부터 배출되는 스팀을 스팀 수요처(140)로 공급하여 이용할 수 있다. 이에 따라, 조건에 따라 서로 다른 온도를 요구하는 스팀 수요처(140)에서 스팀을 효율적으로 이용할 수 있다.The waste heat recovering device 120 can prevent the waste heat from being discharged to the atmosphere by using exhaust heat of the gas turbine. The steam discharged from the steam turbine 130 may be supplied to the steam turbine 130 in order to correspond to a condition requiring a temperature lower than a temperature of the steam produced in the waste heat recovery apparatus 120, And can be supplied to the customer 140 for use. Accordingly, steam can be efficiently used in the steam demanding unit 140 requiring different temperatures depending on conditions.

스팀터빈(130)은 보조발전기(부호 도시하지 않음)가 마련되어 동력을 생산할 수 있도록 구동되면서도, 특히 본 실시예에서는 폐열회수장치(120)에서 생산되는 스팀보다 낮은 온도의 스팀을 요구하는 스팀 수요처(140)에 스팀을 공급한다.The steam turbine 130 is driven to generate power by providing an auxiliary generator (not shown). In particular, in the present embodiment, the steam turbine 130 may be a steam demanding device that requires steam at a temperature lower than that produced by the waste heat recovering device 120 140).

스팀터빈(130)은 폐열회수장치(120)에서 생성된 스팀을 공급받아, 터빈 휠(도시하지 않음)을 회전시켜 가스터빈과 동일 또는 유사하게 별도의 보조발전기가 마련되어 동력을 생산할 수 있다. 여기서, 터빈발전기가 연결된 가스터빈이 구동되어 배기가 생성되는 경우 보조발전기가 연결된 스팀터빈(130)이 구동될 수 있어, 보조발전기는 터빈발전기를 보조하여 작동될 수 있다. The steam turbine 130 receives steam generated from the waste heat recovering device 120 and rotates the turbine wheel (not shown) to generate a power by providing a separate auxiliary generator that is the same as or similar to the gas turbine. Here, when the gas turbine to which the turbine generator is connected is driven to generate exhaust gas, the steam turbine 130 to which the auxiliary generator is connected can be driven, so that the auxiliary generator can be operated by assisting the turbine generator.

특히, 스팀터빈(130)은 구동에 따라 스팀의 온도가 섭씨 40도 내지 500도로 가변될 수 있는데, 스팀 수요처(140)는 각 프로세스(열교환기 등)에서 요구되는 온도가 상이할 수 있으며, 이에 대응하여 스팀터빈(130)으로부터 스팀이 배출되어 각각의 스팀 수요처(140)로 스팀이 공급될 수 있다.Particularly, the temperature of the steam can be varied from 40 to 500 degrees according to driving of the steam turbine 130. The steam demanded by the steam demanding unit 140 may have different temperatures required in each process (heat exchanger, etc.) The steam is discharged from the steam turbine 130 and steam can be supplied to the respective steam demanders 140.

여기서, 스팀터빈(130)은 하나의 축에 여러 개의 터빈 휠(도시하지 않음)이 맞물린 형태를 이룰 수 있어, 스팀터빈(130)에 유입된 스팀이 복수개의 터빈 휠 중 하나 또는 둘 이상의 터빈휠을 지난 후 빠져나와 스팀 수요처(140)로 공급될 수 있어, 스팀의 온도 및 압력이 조절될 수 있다. 이때, 스팀이 경유하는 터빈 휠의 수가 많아질수록 스팀의 압력 및 온도는 낮아질 수 있다.Here, the steam turbine 130 may have a plurality of turbine wheels (not shown) engaged with one shaft so that the steam introduced into the steam turbine 130 may flow into one or more of the plurality of turbine wheels The steam can be supplied to the steam consumer 140, and the temperature and pressure of the steam can be adjusted. At this time, as the number of turbine wheels passing through the steam increases, the pressure and the temperature of the steam can be lowered.

또한, 후술되는 스팀 공급라인(131) 상에서 스팀터빈(130)의 하류에는 온도계 및 압력계가 마련될 수 있어 스팀 공급라인(131)을 경유하는 스팀의 온도 및 압력을 측정하여 각각의 스팀 수요처(140)에서 요구하는 스팀의 스펙(온도, 압력 등)에 대응하여 스팀 공급라인(131)의 개도를 조절함으로써 스팀의 공급을 조절할 수 있다. A thermometer and a pressure gauge may be provided downstream of the steam turbine 130 on the steam supply line 131 to measure the temperature and pressure of the steam passing through the steam supply line 131, The supply of steam can be controlled by adjusting the opening degree of the steam supply line 131 in accordance with the specification (temperature, pressure, etc.) of the steam required by the steam supply line 131.

아울러, 도면에 도시하지는 않았으나, 스팀 공급라인(131), 폐열 전달라인(111), 응축수 전달라인(145), 응축수 회수라인(132) 등의 라인 상에는 밸브가 마련되어 밸브의 개도 조절에 의해 스팀의 공급 및 유량이 조절될 수도 있다.Although not shown in the drawings, valves are provided on the lines of the steam supply line 131, the waste heat transfer line 111, the condensate transfer line 145, the condensate collection line 132, etc., The supply and flow rates may be adjusted.

스팀 수요처(140)는 선박(도시하지 않음)에 설치되며 스팀을 소비하고, 적어도 하나 이상 마련될 수 있다. 여기서, 스팀 수요처(140)는 선박에 설치되는 난방시스템(141) 또는 유체의 가열을 위한 열교환기(142)일 수 있다. The steam demanding unit 140 is installed in a ship (not shown) and consumes steam, and at least one steam can be provided. Here, the steam consumer 140 may be a heating system 141 installed on the ship or a heat exchanger 142 for heating the fluid.

예를 들어, 난방시스템(141)은 열교환기(142)보다 낮은 온도를 요구할 수 있으며, 난방시스템(141)이 섭씨 100도 내외의 스팀을 요구하고, 열교환기(142)는 섭씨 140도 내외의 스팀을 요구할 수 있다.For example, the heating system 141 may require a lower temperature than the heat exchanger 142, the heating system 141 requires steam at around 100 degrees Celsius and the heat exchanger 142 is at 140 degrees Celsius You can demand steam.

이와 같이, 각각의 스팀 수요처(140) 마다 요구하는 스팀의 온도는 상이할 수 있는데, 스팀터빈(130)의 구동 진행에 따라 온도가 변경되는(스팀이 경유하는 터빈휠의 수 증가에 따름) 스팀을 공급받을 수 있도록, 스팀 공급라인(131)이 스팀터빈(130)으로부터 스팀 수요처(140)로 연결될 수 있다. In this way, the temperature of steam required for each steam demanding unit 140 may be different. In accordance with the increase of the number of turbine wheels passing through the steam, The steam supply line 131 may be connected to the steam supply source 140 from the steam turbine 130 so that the steam supply line 131 can be supplied with steam.

이때, 스팀터빈(130)으로 공급되는 스팀은 폐열회수장치(120)로부터 공급될 수 있으며, 이에 따라, 스팀 공급라인(131)은 폐열회수장치(120), 스팀터빈(130), 스팀 수요처(140) 각각을 경유하여 연결될 수 있다. 즉, 스팀 공급라인(131)은 폐열회수장치(120)에서 스팀 수요처(140)로 연결되며, 스팀터빈(130)을 경유하도록 마련된다.At this time, the steam supplied to the steam turbine 130 can be supplied from the waste heat recovery device 120, and the steam supply line 131 is connected to the waste heat recovery device 120, the steam turbine 130, 140, respectively. That is, the steam supply line 131 is connected to the steam demander 140 in the waste heat recovery apparatus 120, and is provided to pass through the steam turbine 130.

여기서, 난방시스템(141)과 열교환기(142) 등은 요구되는 스팀의 온도를 달리 이루므로, 스팀 공급라인(131)은 난방시스템(141)과 열교환기(142) 각각에 연결되도록 분기될 수 있다.Since the heating system 141 and the heat exchanger 142 are different from each other in the required steam temperature, the steam supply line 131 can be branched to be connected to the heating system 141 and the heat exchanger 142, respectively. have.

아울러, 각각의 스팀 수요처(140)에서 사용된 후 배출된 스팀은 하나의 콘덴서(150)로 공급될 수 있으며, 응축수 전달라인(145)이 각각의 스팀 수요처(140)에서 합류되어 폐열회수장치(120)까지 연결되어 폐열회수장치(120)로 응축수를 전달할 수 있다.The steam discharged from the steam consumer 140 may be supplied to one condenser 150 and the condensed water transfer line 145 may be combined in the respective steam consumers 140 to be connected to the waste heat recovery device 120 to transfer the condensed water to the waste heat recovery apparatus 120.

콘덴서(150)는 스팀터빈(130)에서 배출된 스팀을 재활용하기 위해서, 스팀을 냉각시켜 응축수를 생성한 후 폐열회수장치(120)에 공급하는 구성으로서, 콘덴서(150)는 스팀터빈(130)에서 배출되는 스팀 또는 응축수 중 스팀을 냉각하여 응축시킬 수 있어, 콘덴서(150)에서 응축된 증기는 폐열회수장치(120)로 공급된다. The condenser 150 is configured to cool the steam to generate condensed water and then supply the condensed water to the waste heat recovery apparatus 120. The condenser 150 is connected to the steam turbine 130, The steam condensed in the condenser 150 is supplied to the waste heat recovering device 120. The condensed steam can be condensed by cooling the condensed steam.

여기서, 응축수 회수라인(132)이 스팀터빈(130)에서 응축수 전달라인(145)까지 연결되어 응축수를 전달할 수 있으며, 응축수 회수라인(132) 상에 콘덴서(150)가 마련되어, 스팀터빈(130)으로부터 배출된 스팀이 콘덴서(150)에서 응축되어 스팀 수요처(140)에서 배출된 스팀과 합류할 수 있다. 이러한 스팀은 응축수 전달라인(145)을 통해 폐열회수장치(120)로 공급될 수 있다.A condensate recovery line 132 is connected from the steam turbine 130 to a condensed water delivery line 145 to deliver condensate. A condenser 150 is provided on the condensate recovery line 132, The steam discharged from the steam consumer 140 may be condensed in the condenser 150 to join with the steam discharged from the steam consumer 140. This steam may be supplied to the waste heat recovery apparatus 120 through the condensate delivery line 145.

이때, 폐열회수장치(120)에 유입된 응축수는 기관(110)의 배기에 의해 스팀으로 변환되어 스팀터빈(130)으로 다시 유입되는 바와 같이, 스팀의 발생, 응축, 발생의 과정이 반복될 수 있다.At this time, the condensed water flowing into the waste heat recovering device 120 is converted into steam by the exhaust of the engine 110 and flows into the steam turbine 130 again, so that the process of generating, condensing and generating steam can be repeated have.

이와 같이 본 실시예는, 추진 등을 위한 기관(110)으로 사용되는 엔진 또는 가스터빈의 폐열을 이용하여 폐열회수장치(120) 또는 스팀터빈(130)의 공정에 필요한 스팀을 추출하여 사용함으로써 스팀 생성용 보일러를 별도로 설치할 필요가 없어 비용을 절감할 수 있을 뿐만 아니라 연료효율이 향상되어 연료비를 절감할 수 있다.Thus, in this embodiment, the steam used for the process of the waste heat recovering apparatus 120 or the steam turbine 130 is extracted and used by using the waste heat of the engine or the gas turbine used as the engine 110 for propulsion, There is no need to separately provide a boiler for production, so that the cost can be reduced, and the fuel efficiency can be improved and the fuel cost can be reduced.

이상 본 발명을 구체적인 실시예를 통하여 상세히 설명하였으나, 이는 본 발명을 구체적으로 설명하기 위한 것으로, 본 발명은 이에 한정되지 않으며, 본 발명의 기술적 사상 내에서 당해 분야의 통상의 지식을 가진 자에 의해 그 변형이나 개량이 가능함은 명백하다고 할 것이다.While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification and the modification are possible.

본 발명의 단순한 변형 내지 변경은 모두 본 발명의 영역에 속하는 것으로 본 발명의 구체적인 보호 범위는 첨부된 특허청구범위에 의하여 명확해질 것이다.It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

100: 발전 시스템 110: 기관
111: 폐열 전달라인 120: 폐열회수장치
130: 스팀터빈 131: 스팀 공급라인
132: 응축수 회수라인 140: 스팀 수요처
141: 난방시스템 142: 열교환기
145: 응축수 전달라인 150: 콘덴서100: power generation system 110: engine
111: waste heat transfer line 120: waste heat recovery device
130: Steam turbine 131: Steam supply line
132: Condensate recovery line 140: Steam demand source
141: Heating system 142: Heat exchanger
145: Condensate delivery line 150: Condenser

Claims (7)

오일 또는 가스를 이용하여 에너지를 생산하는 기관;
상기 기관의 폐열을 회수하여 스팀을 생성하는 폐열회수장치;
상기 폐열회수장치에서 생성된 스팀을 공급받는 스팀터빈; 및
선박에 설치되며 상기 스팀을 소비하는 적어도 하나 이상의 스팀 수요처를 포함하되,
상기 폐열회수장치에서 상기 스팀 수요처로 연결되는 스팀 공급라인은,
상기 스팀터빈을 경유하도록 마련되는 것을 특징으로 하는 발전 시스템.An engine that produces energy using oil or gas;
A waste heat recovery device for recovering waste heat of the engine to generate steam;
A steam turbine supplied with steam generated in the waste heat recovering device; And
At least one steam consumer installed in the ship and consuming the steam,
The steam supply line connected to the steam demanding unit in the waste heat recovering unit includes:
And the steam turbine is arranged to pass through the steam turbine. 제1항에 있어서,
상기 기관에서 상기 폐열회수장치로 상기 기관의 폐열을 전달하는 폐열 전달라인이 마련되는 것을 특징으로 하는 발전 시스템.The method according to claim 1,
And a waste heat transfer line for transferring the waste heat of the engine to the waste heat recovery apparatus is provided in the engine. 제1항에 있어서,
상기 스팀 수요처에서 상기 폐열회수장치로 응축수를 전달하는 응축수 전달라인이 마련되는 것을 특징으로 하는 발전 시스템.The method according to claim 1,
And a condensed water delivery line for delivering condensed water to the waste heat recovery device in the steam consumer. 제3항에 있어서,
상기 스팀터빈에서 상기 응축수 전달라인으로 응축수를 전달하는 응축수 회수라인이 마련되는 것을 특징으로 하는 발전 시스템.The method of claim 3,
And a condensate collection line for transferring condensate from the steam turbine to the condensate delivery line. 제4항에 있어서,
상기 응축수 회수라인에 마련되는 콘덴서를 더 포함하는 것을 특징으로 하는 발전 시스템.5. The method of claim 4,
And a condenser provided in the condensate collection line. 제5항에 있어서, 상기 콘덴서는,
상기 스팀터빈에서 배출되는 스팀 또는 응축수 중 스팀을 냉각하여 응축시키는 것을 특징으로 하는 발전 시스템.The plasma display apparatus according to claim 5,
And the steam in the steam turbine or the condensed water is cooled and condensed. 제1항에 있어서, 상기 스팀 수요처는,
선박에 설치되는 난방시스템 또는 유체의 가열을 위한 열교환기인 것을 특징으로 하는 발전 시스템.The steam supply system according to claim 1,
And a heating system installed in the ship or a heat exchanger for heating the fluid.
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