KR100474521B1 - A heating system for seawater on LNG regasification vessel - Google Patents

A heating system for seawater on LNG regasification vessel Download PDF

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Publication number
KR100474521B1
KR100474521B1 KR10-2002-0075292A KR20020075292A KR100474521B1 KR 100474521 B1 KR100474521 B1 KR 100474521B1 KR 20020075292 A KR20020075292 A KR 20020075292A KR 100474521 B1 KR100474521 B1 KR 100474521B1
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South Korea
Prior art keywords
heat exchanger
temperature
steam
reducing valve
pressure
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KR10-2002-0075292A
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Korean (ko)
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KR20040047175A (en
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유진열
김남수
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유진열
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Priority to KR10-2002-0075292A priority Critical patent/KR100474521B1/en
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Classifications

    • 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
    • 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
    • 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
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/004—Details of vessels or of the filling or discharging of vessels for large storage vessels not under pressure
    • 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
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0309—Heat exchange with the fluid by heating using another fluid
    • F17C2227/0316—Water heating
    • F17C2227/0318—Water heating using seawater
    • 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
    • F17C2265/05—Regasification
    • 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

Abstract

본 발명은 엘엔지 기화선에 있어서 선박 기관실에 위치한 추진용 증기 보일러에서 발생하는 과열 증기의 일부분을 압력 및 온도 제어를 통하여 해수 증기 열교환기에 공급하여 해수의 온도를 증가시켜 기화기에 공급하여 주는 엘엔지 기화선의 해수 가열 시스템에 관한 것이며, 증기 보일러에 추진 터빈과 증기 발전기가 설치되어 추진하는 엘엔지 기화선에 있어서, 상기 증기 보일러(2)를 열교환기(16)의 열공급부에 연결 설치하고, 상기 열교환기(16)의 열흡수부에 해수공급장치(14)를 연결설치하며, 상기 열교환기(16)의 열흡수부의 배출구를 기화기(13)와 연결 설치하며, 증기 보일러(2)와 상기 열교환기(16) 사이에 감압 밸브(11)와 감온 밸브(12)를 설치하고, 상기 열교환기(16)의 열공급부 입구에 인접하여 온도센서(6)와 압력센서(7)를 설치하고, 상기 온도센서(6)와 압력센서(7)를 선박 통합자동화 시스템(5)에 연결하여 그 측정값을 설정된 측정값과 비교하여 개폐신호를 보내 각각 감온밸브(12)와 감압밸브(11)를 개폐하여 일정온도와 일정압력의 증기를 열교환기(16)로 공급하는 것을 특징으로 한다.The present invention is to provide a portion of the superheated steam generated in the propulsion steam boiler located in the engine room of the LENGE gas supply to the seawater steam heat exchanger through pressure and temperature control to increase the temperature of the seawater to supply to the carburetor Related to the sea water heating system, in an L-engine vaporizer, in which a propulsion turbine and a steam generator are installed in a steam boiler, the steam boiler (2) is connected to a heat supply unit of a heat exchanger (16), and the heat exchanger ( The seawater supply unit 14 is connected to and installed in the heat absorption unit of the heat exchanger 16, and the outlet of the heat absorption unit of the heat exchanger 16 is connected to the vaporizer 13, and the steam boiler 2 and the heat exchanger 16 are installed. Between the pressure reducing valve 11 and the temperature reducing valve 12, and adjacent to the heat supply inlet of the heat exchanger 16, a temperature sensor 6 and a pressure sensor 7 are installed. (6) and the pressure sensor (7) is connected to the vessel integrated automation system (5) and compares the measured value with the set measured value and sends an open / close signal to open and close the temperature reducing valve (12) and the pressure reducing valve (11), respectively. It is characterized in that the supply of steam and the temperature of a constant pressure to the heat exchanger (16).

Description

엘엔지 기화선의 해수 가열 시스템{A heating system for seawater on LNG regasification vessel}A heating system for seawater on LNG regasification vessel

본 발명은 엘엔지 기화선에 있어서 선박 기관실에 위치한 추진용 증기 보일러에서 발생하는 과열 증기의 일부분을 압력 및 온도 제어를 통하여 해수 증기 열교환기에 공급하여 해수의 온도를 증가시켜 기화기에 공급하여 주는 엘엔지 기화선의 해수 가열 시스템에 관한 것이다.The present invention is to provide a portion of the superheated steam generated in the propulsion steam boiler located in the engine room of the LENGE gas supply to the seawater steam heat exchanger through pressure and temperature control to increase the temperature of the seawater to supply to the carburetor A seawater heating system.

종래에는 엘엔지 기화선에서의 기화기(vaporizer)에서 필요한 열전달 매체로서 해수를 이용하므로 해수의 온도 상승이 필요하고, 이를 위하여 증기 및 고온수등의 전용 발생장치를 별도 설치하여 운용한다.Conventionally, since seawater is used as a heat transfer medium required by an evaporator in an LNG vaporizer, the temperature of the seawater needs to be increased, and for this purpose, a dedicated generator such as steam and hot water is separately installed and operated.

그러므로 별도의 장비를 부착하여야 하므로 설비비가 증가하고, 공간의 이용율이 낮아지는 문제가 발생한다.Therefore, a separate equipment must be attached, so the cost of equipment increases, the use of space is low.

본 발명은 전술한 문제를 해결하기 위하여 안출한 것으로서, 증기를 발생하는 과열증기를 감압 감온 밸브를 통하여 기화기에서 필요한 해수의 온도를 이루기 위한 특정온도 및 압력의 증기로 만든다음 이를 기화기로 공급하여 주는 엘엔지 기화선의 해수 가열 시스템을 제공하고자 하는 목적을 가지고 있다.The present invention has been made in order to solve the above-mentioned problems, by making the superheated steam generating steam to the steam of a specific temperature and pressure to achieve the temperature of the seawater required in the vaporizer through a reduced pressure reducing valve and supplying it to the vaporizer Its purpose is to provide a seawater heating system for an LNG vaporizer.

본 발명은 전술한 목적을 달성하기 위하여 증기 보일러에 추진 터빈과 증기 발전기가 설치되어 추진하는 엘엔지 기화선에 있어서, 상기 증기 보일러를 열교환기의 열공급부에 연결 설치하고, 상기 열교환기의 열흡수부에 해수공급장치를 연결설치하며, 상기 열교환기의 열흡수부의 배출구를 기화기와 연결 설치하며, 증기 보일러와 상기 열교환기 사이에 감압 밸브와 감온 밸브를 설치하고, 상기 열교환기의 열공급부 입구에 인접하여 온도센서와 압력센서를 설치하고, 상기 온도센서와 압력센서를 선박 통합자동화 시스템에 연결하여 그 측정값을 설정된 측정값과 비교하여 개폐신호를 보내 각각 감온밸브와 감압밸브를 개폐하여 일정온도와 일정압력의 증기를 열교환기(16)로 공급하는 것을 특징으로 하는 엘엔지 기화선의 해수 가열 시스템을 제공한다.The present invention is to provide a steam turbine boiler propulsion turbine and steam generator installed in order to achieve the above object, in the LG vaporizer, the steam boiler is connected to the heat supply of the heat exchanger, the heat absorption unit of the heat exchanger Install a seawater supply device to the outlet, connect the outlet of the heat absorber of the heat exchanger to a carburetor, install a pressure reducing valve and a temperature reducing valve between the steam boiler and the heat exchanger, and adjoin the heat supply inlet of the heat exchanger. The temperature sensor and the pressure sensor, and the temperature sensor and the pressure sensor are connected to the ship integrated automation system, and the measured value is compared with the set measurement value and the open / close signal is sent to open and close the temperature and pressure reducing valves respectively. It provides a seawater heating system of the LNG vaporizer ship characterized in that to supply a constant pressure steam to the heat exchanger (16). The.

이하 첨부된 도면을 참조하여 본 발명의 구성을 상세히 설명하면 다음과 같다.Hereinafter, the configuration of the present invention will be described in detail with reference to the accompanying drawings.

증기 보일러(2)에 선박의 추진을 위한 추진터빈(4)이 연결되어 있고, 상기 추진터빈(4)외에 선박 내의 전기 사용을 위한 증기발전기(3)가 설치되어 있다.A propulsion turbine 4 for propulsion of the ship is connected to the steam boiler 2, and in addition to the propulsion turbine 4, a steam generator 3 for electric use in the ship is installed.

엘엔지를 기화시키기 위해서는 기화기에 사용되는 해수의 온도를 일정 온도로 유지시켜야 하는데, 이를 위한 장치를 별도로 설치하지 않고 증기 보일러에서 나오는 과열 증기의 일부분을 일정온도와 압력으로 공급하는 것을 주요 구성으로 한다.In order to vaporize LENG, the temperature of the seawater used in the vaporizer must be maintained at a constant temperature. The main configuration is to supply a portion of the superheated steam from the steam boiler at a constant temperature and pressure without installing a device for this purpose.

통상적으로 열교환기(16)는 열공급부와 열흡수부로 나뉘는데, 증기 보일러(2)의 증기 배출구를 열교환기(16)의 열공급부에 연결설치하고, 해수공급장치(14)의 해수 공급부를 열흡수부에 연결 설치한다.Typically, the heat exchanger 16 is divided into a heat supply unit and a heat absorbing unit. The steam outlet of the steam boiler 2 is connected to the heat supply unit of the heat exchanger 16, and the sea water supply unit of the seawater supply unit 14 is heat absorbed. Connect to the unit and install.

기존의 증기 보일러(2)와 열교환기(16)를 감압밸브(11)와 감온밸브(12)를 사이에 두고 연결한다. 상기 열교환기(16)에 해수공급장치(14)를 연결하여 증기 보일러(2)에서 공급된 과열 증기에서 얻은 열로 해수를 가열하여 기화기(13)로 보낸다.The existing steam boiler 2 and the heat exchanger 16 are connected with the pressure reducing valve 11 and the temperature reducing valve 12 interposed therebetween. The seawater supply device 14 is connected to the heat exchanger 16 to heat the seawater with heat obtained from superheated steam supplied from the steam boiler 2 to the vaporizer 13.

상기 감압밸브(11), 감온밸브(12)와 열교환기(16) 사이에 증기의 온도를 측정하는 온도센서(6)와 압력을 측정하는 압력센서(7)를 설치한다. 상기 온도센서(6)와 압력센서(7)는 선박통합자동화시스템(5)내의 온도제어기(8)와 압력제어기(9)와 연결 설치하며, 상기 온도제어기(8)는 감온밸브(12)에 연결되어 상기 온도센서(6)의 측정값에 따라 감온밸브(12)를 개폐한다. 그리고 압력제어기(9)는 감압밸브(11)에 연결되어 상기 압력센서(7)의 측정값에 따라 감압밸브(11)를 개폐한다.Between the pressure reducing valve 11, the temperature reduction valve 12, and the heat exchanger 16, a temperature sensor 6 for measuring the temperature of steam and a pressure sensor 7 for measuring pressure are provided. The temperature sensor 6 and the pressure sensor 7 are installed in connection with the temperature controller 8 and the pressure controller 9 in the vessel integrated automation system 5, and the temperature controller 8 is connected to the temperature reducing valve 12. Is connected to open and close the thermostat valve 12 in accordance with the measured value of the temperature sensor (6). The pressure controller 9 is connected to the pressure reducing valve 11 to open and close the pressure reducing valve 11 according to the measured value of the pressure sensor 7.

상기 감압밸브(11)에는 에어공급밸브(10)가 연결 설치되어 공기를 공급한다. 상기 감압밸브(11)는 에어공급밸브(10)로부터 공급된 에어 양을 조절하여 압력을 조절한다.An air supply valve 10 is connected to the pressure reducing valve 11 to supply air. The pressure reducing valve 11 adjusts the pressure by adjusting the amount of air supplied from the air supply valve 10.

감온밸브(12)는 보일러 공급수(1)와 연결 설치되며, 상기 보일러 공급수를 감온밸브(12)에 공급하여 열교환기로(16)로 가는 증기의 온도를 낮추어 준다.The thermostat valve 12 is installed in connection with the boiler feed water 1, and supplies the boiler feed water to the thermostat valve 12 to lower the temperature of the steam going to the heat exchanger 16.

이와 같이 본 발명은 증기보일러(2)에서 발생되는 과열증기의 일부를 일정 온도와 압력으로 해수공급장치(14)에서 공급된 해수를 가열하는 열교환기(16)로 공급한다. 이때 일정 온도와 압력을 유지시키는 구성으로 온도센서(6)와 압력센서(7)에 연결된 선박통합 자동화시스템(5)이 감압밸브(11)와 감온밸브(12)를 작동시켜 온도센서(6)와 압력센서(7)에서 측정된 값과 미리 설정되어 있는 값과 비교하여 압력제어기(9)와 온도제어기(8)에서 감압밸브(11)와 감온밸브(12)를 개폐하여 일정하게 조절한다. As described above, the present invention supplies a part of the superheated steam generated by the steam boiler 2 to the heat exchanger 16 for heating the seawater supplied from the seawater supply device 14 at a predetermined temperature and pressure. At this time, the vessel integrated automation system (5) connected to the temperature sensor (6) and the pressure sensor (7) by operating the pressure reducing valve (11) and the temperature reducing valve (12) to maintain a constant temperature and pressure to the temperature sensor (6) The pressure controller 9 and the temperature controller 8 open and close the pressure reducing valve 11 and the temperature reduction valve 12 in comparison with the values measured by the pressure sensor 7 and the preset values.

이상과 같이 본 발명은 추진을 하는 증기보일러(2)에서 공급되는 과열의 증기를 이용하여 해수공급장치에서 공급되는 해수를 가열하여 엘엔지를 기화시키므로 별도의 증기 및 고온수 전용 발생장치를 설치하지 않아도 되므로 장비를 최소화하고 공간을 극대화하여 사용할 수 있는 효과가 있다.As described above, the present invention heats the seawater supplied from the seawater supply device using the superheated steam supplied from the steam boiler 2 for propelling to vaporize the LEN, so that a separate steam and hot water generator is not required to be installed. Therefore, there is an effect that can be used to minimize the equipment and maximize the space.

도 1은 본 발명의 해수 가열 시스템을 도시한 도면.1 shows a seawater heating system of the present invention.

< 도면의 주요 부분에 대한 부호의 간단한 설명 ><Brief description of symbols for the main parts of the drawings>

1 : 보일러 공급수 2 : 증기 보일러1: boiler feed water 2: steam boiler

3 : 증기 발전기 4 : 추진터빈3: steam generator 4: propulsion turbine

5 : 선박통합 자동화 시스템 6 : 온도센서5: ship integrated automation system 6: temperature sensor

7 : 압력센서 8 : 온도제어기7: pressure sensor 8: temperature controller

9 : 압력제어기 10 : 에어공급밸브9: pressure controller 10: air supply valve

11 : 감압밸브 12 : 감온밸브11: pressure reducing valve 12: temperature reducing valve

13 : 기화기 14 : 해수공급장치13: carburetor 14: sea water supply device

15 : 보일러 환원수 16 : 열교환기15: boiler reduced water 16: heat exchanger

Claims (2)

증기 보일러에 추진 터빈과 증기 발전기가 설치되어 추진하는 엘엔지 기화선에 있어서, 상기 증기 보일러(2)를 열교환기(16)의 열공급부에 연결 설치하고, 상기 열교환기(16)의 열흡수부에 해수공급장치(14)를 연결설치하며, 상기 열교환기(16)의 열흡수부의 배출구를 기화기(13)와 연결 설치하는 것을 특징으로 하는 엘엔지 기화선의 해수 가열 시스템.In an LNG vaporizer, in which a propulsion turbine and a steam generator are installed in a steam boiler, the steam boiler 2 is connected to a heat supply unit of a heat exchanger 16, and a heat absorption unit of the heat exchanger 16 is installed. Sea water supply system (14) is connected to the installation, the sea water heating system of the LNG vaporizer, characterized in that the outlet of the heat absorption portion of the heat exchanger (16) is connected to the carburetor (13). 제 1 항에 있어서, 증기 보일러(2)와 상기 열교환기(16) 사이에 감압 밸브(11)와 감온 밸브(12)를 설치하고, 상기 열교환기(16)의 열공급부 입구에 인접하여 온도센서(6)와 압력센서(7)를 설치하고, 상기 온도센서(6)와 압력센서(7)를 선박 통합자동화 시스템(5)에 연결하여 그 측정값을 설정된 측정값과 비교하여 개폐신호를 보내 각각 감온밸브(12)와 감압밸브(11)를 개폐하여 일정온도와 일정압력의 증기를 열교환기(16)로 공급하는 것을 특징으로 하는 엘엔지 기화선의 해수 가열 시스템. 2. A temperature sensor according to claim 1, wherein a pressure reducing valve (11) and a temperature reducing valve (12) are provided between the steam boiler (2) and the heat exchanger (16), and adjacent to the heat supply inlet of the heat exchanger (16). (6) and the pressure sensor (7) is installed, and the temperature sensor (6) and the pressure sensor (7) is connected to the ship integrated automation system (5) and compares the measured value with the set measured value and sends an open / close signal. A seawater heating system of an LNG vaporizer, characterized in that for opening and closing the temperature reducing valve (12) and the pressure reducing valve (11), respectively, to supply steam of a constant temperature and a constant pressure to the heat exchanger (16).
KR10-2002-0075292A 2002-11-29 2002-11-29 A heating system for seawater on LNG regasification vessel KR100474521B1 (en)

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Cited By (2)

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Publication number Priority date Publication date Assignee Title
KR100897287B1 (en) 2003-08-12 2009-05-14 익셀러레이트 에너지 리미티드 파트너쉽 Shipboard regasification for LNG carriers with alternate propulsion plants
CN102079551B (en) * 2009-11-26 2012-09-05 中国神华能源股份有限公司 TVC (Thermal Vapor Compression) exhaust vapor temperature reducer and temperature reducing method for seawater multi-effect distillation system

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KR20040049031A (en) * 2002-12-03 2004-06-11 대우조선해양 주식회사 A system for heating seawater

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JPH11125397A (en) * 1997-10-22 1999-05-11 Ishikawajima Harima Heavy Ind Co Ltd Liquefied gas vaporizer
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100897287B1 (en) 2003-08-12 2009-05-14 익셀러레이트 에너지 리미티드 파트너쉽 Shipboard regasification for LNG carriers with alternate propulsion plants
CN102079551B (en) * 2009-11-26 2012-09-05 中国神华能源股份有限公司 TVC (Thermal Vapor Compression) exhaust vapor temperature reducer and temperature reducing method for seawater multi-effect distillation system

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