KR101177897B1 - Liquefied gas storage tank for ship and ship including the same - Google Patents

Liquefied gas storage tank for ship and ship including the same Download PDF

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KR101177897B1
KR101177897B1 KR1020090130163A KR20090130163A KR101177897B1 KR 101177897 B1 KR101177897 B1 KR 101177897B1 KR 1020090130163 A KR1020090130163 A KR 1020090130163A KR 20090130163 A KR20090130163 A KR 20090130163A KR 101177897 B1 KR101177897 B1 KR 101177897B1
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South Korea
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liquefied gas
storage tank
buffer member
gas storage
ship
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KR1020090130163A
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Korean (ko)
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KR20110073019A (en
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송애경
박종진
김병우
이봉왕
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삼성중공업 주식회사
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    • 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 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • B63B17/0081—Vibration isolation or damping elements or arrangements, e.g. elastic support of deck-houses
    • 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
    • F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
    • F17C2205/01—Mounting arrangements
    • F17C2205/0153—Details of mounting arrangements
    • F17C2205/0196—Details of mounting arrangements with shock absorbing means
    • 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
    • F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
    • 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
    • F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
    • F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
    • F17C2223/0146—Two-phase
    • F17C2223/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2223/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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
    • F17C2225/00—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel
    • F17C2225/01—Handled fluid after transfer, i.e. state of fluid after transfer from the vessel characterised by the phase
    • F17C2225/0146—Two-phase
    • F17C2225/0153—Liquefied gas, e.g. LPG, GPL
    • F17C2225/0161—Liquefied gas, e.g. LPG, GPL cryogenic, e.g. LNG, GNL, PLNG
    • 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

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

선박용 액화가스 저장탱크 및 이를 구비한 선박이 개시된다. 개시된 선박용 액화가스 저장탱크는 액화가스를 저장하기 위한 내부공간을 갖는 저장부와, 저장부의 내측면 모서리에 경사지게 형성된 챔퍼부와, 챔퍼부 중 적어도 하나에 설치된 완충부재를 포함하며, 선박의 운항 등에 의해 액화가스 저장탱크에 저장된 액화가스에 슬로싱이 발생하게 되면 각 챔퍼부에 형성된 완충부재에 의해 슬로싱 충격을 감소시킬 수 있다. 또한, 완충부재는 액화가스의 유동을 완충 및 저감시킬 수 있다. 이와 같이, 완충부재에 의해 저장탱크에 전달되는 충격이 저감되므로, 저장탱크의 구조적인 안정성을 향상시킬 수 있다.A liquefied gas storage tank for ships and a vessel having the same are disclosed. The disclosed liquefied gas storage tank for ship includes a storage unit having an internal space for storing liquefied gas, a chamfer portion inclined at an inner side edge of the storage portion, and a buffer member installed at at least one of the chamfer portions, and the like. When sloshing occurs in the liquefied gas stored in the liquefied gas storage tank by the buffer member formed in each chamfer portion can reduce the sloshing impact. In addition, the buffer member can buffer and reduce the flow of the liquefied gas. In this way, since the shock transmitted to the storage tank by the buffer member is reduced, it is possible to improve the structural stability of the storage tank.

액화가스, 저장탱크, 슬로싱, 챔퍼, 완충부재, 충격 Liquefied Gas, Storage Tank, Sloshing, Chamfer, Shock Absorber, Impact

Description

선박용 액화가스 저장탱크 및 이를 구비한 선박 {LIQUEFIED GAS STORAGE TANK FOR SHIP AND SHIP INCLUDING THE SAME}Liquefied gas storage tank for ship and ship equipped with it {LIQUEFIED GAS STORAGE TANK FOR SHIP AND SHIP INCLUDING THE SAME}

본 발명은 선박용 액화가스 저장탱크 및 이를 구비한 선박에 관한 것으로서, 더욱 상세하게는 액화가스의 슬로싱 현상의 감소 및 이에 따른 충격을 감소할 수 있는 선박용 액화가스 저장탱크 및 이를 구비한 선박에 관한 것이다.The present invention relates to a liquefied gas storage tank for ships and a vessel having the same, and more particularly to a liquefied gas storage tank for ships that can reduce the slewing phenomenon of the liquefied gas and thereby the impact and a vessel having the same will be.

액화가스는 가스를 극저온(대략 -163℃)으로 냉각시켜 액화시킨 것으로서, 액화천연가스(LNG : Liquefied Natural Gas)가 대표적이다.Liquefied gas is liquefied by cooling the gas to cryogenic temperature (about -163 ℃), a typical liquefied natural gas (LNG: Liquefied Natural Gas).

이러한 LNG는 가스 상태일 때보다 그 부피가 대략 1/600로 줄어들므로 해상을 통한 원거리 운반에 매우 적합하다.These LNGs are approximately 1/600 smaller in volume than in gaseous form, making them well suited for long distance transport by sea.

LNG는 단열시스템을 갖춘 액화가스 저장탱크 내에 저장되는데, 이러한 액화가스 저장탱크는 선박이나 육상용 저장시설물 등에 설치될 수 있다.LNG is stored in a liquefied gas storage tank with an insulation system, which can be installed in ships or onshore storage facilities.

일례로, 선박에 설치된 액화가스 저장탱크는 운항에 따라 내부에 저장된 LNG가 유동하게 되며, 이에 따라 저장탱크의 내벽면에 심한 충격을 주는 슬로 싱(sloshing) 현상이 발생할 수 있다.For example, LNG stored in the liquefied gas storage tank installed in the vessel is flowed, according to the sloshing (sloshing) that can severely impact the inner wall surface of the storage tank may occur.

종래의 액화가스 저장탱크는 내측면 상부 및 하부에 대략 46도 각도로 경사진 상부 챔퍼부 및 하부 챔퍼부를 형성하여 슬로싱 현상을 감소시키고 있다.Conventional liquefied gas storage tanks reduce the sloshing phenomenon by forming an upper chamfer portion and a lower chamfer portion inclined at approximately 46 degrees on the upper and lower inner surfaces thereof.

그런데, 액화가스 저장탱크의 크기가 증가함에 따라 액화가스의 슬로싱 현상도 증가하고 있다.However, as the size of the liquefied gas storage tank increases, the sloshing phenomenon of the liquefied gas also increases.

그러나, 종래의 선박용 액화가스 저장탱크에 적용된 상부 챔퍼부 및 하부 챔퍼부 만으로는 액화가스의 슬로싱 현상을 억제할 수 없어 내벽면으로 전달되는 충격이 증가하고 있다. 더욱이, 액화가스 저장탱크는 내부에 액화가스가 15 내지 30% 정도 채워질 경우, 슬로싱 현상이 더 크게 발생하고 있고 있다. 이에 따라 액화가스 저장탱크에 발생되는 슬로싱 현상을 감소시킬 뿐만 아니라 이에 따른 충격을 감소시키기 위한 구조의 개선이 요구되고 있다.However, since the upper chamfer portion and the lower chamfer portion applied to the conventional liquefied gas storage tank for ships cannot suppress the sloshing phenomenon of the liquefied gas, the impact transmitted to the inner wall surface is increasing. Further, when the liquefied gas storage tank is filled with about 15 to 30% of the liquefied gas therein, the sloshing phenomenon is larger. Accordingly, there is a need to improve the structure to reduce the sloshing phenomenon generated in the liquefied gas storage tank as well as to reduce the impact.

본 발명의 일 실시예는 액화가스 저장탱크의 각 챔퍼부에 액화가스의 슬로싱 현상을 억제하며 충격을 감소시키는 구조를 마련한 선박용 액화가스 저장탱크 및 이를 구비한 선박을 제공하는 것이다.One embodiment of the present invention is to provide a liquefied gas storage tank for ships provided with a structure for suppressing the sloshing phenomenon of the liquefied gas to reduce the impact on each chamfer portion of the liquefied gas storage tank and a vessel having the same.

본 발명의 일 측면에 따르면, 선박용 액화가스 저장탱크는 액화가스를 저장 하기 위한 내부공간을 갖는 저장부와, 저장부의 내측면 모서리에 경사지게 형성된 챔퍼부와, 챔퍼부 중 적어도 하나에 설치된 완충부재를 포함한다.According to an aspect of the present invention, a marine liquefied gas storage tank has a storage unit having an inner space for storing the liquefied gas, a chamfer portion formed inclined at the corner of the inner surface of the storage portion, and a buffer member installed in at least one of the chamfer portion Include.

또한, 본 발명의 다른 측면에 따르면, 선박은 선체와, 선체에 설치되며 액화가스를 저장하기 위한 내부공간을 갖는 저장부와, 저장부의 내측면 모서리에 경사지게 형성된 챔퍼부와, 챔퍼부 중 적어도 하나에 설치된 완충부재를 포함하는 선박용 액화가스 저장탱크를 포함한다.In addition, according to another aspect of the invention, the vessel is at least one of the hull, a storage unit installed on the hull having an internal space for storing the liquefied gas, a chamfer portion formed inclined at the inner surface edge of the storage portion, the chamfer portion It includes a liquefied gas storage tank for ship comprising a buffer member installed in.

저장부의 내측면에 형성되며 완충부재의 주변부를 감싸 결합시키는 걸이부를 더 포함할 수 있다.Is formed on the inner side of the storage portion may further include a hook portion for wrapping and engaging the peripheral portion of the buffer member.

챔퍼부의 하부에 설치되는 완충부재는 상단의 높이가 저장부 높이의 15 내지 30%의 높이에 위치되도록 설치될 수 있다.The buffer member installed below the chamfer portion may be installed so that the height of the upper end is located at a height of 15 to 30% of the height of the storage portion.

챔퍼부의 상부에 설치되는 완충부재는 하단의 높이가 저장부 높이의 70 내지 90%의 높이에 위치되도록 설치될 수 있다.The buffer member installed on the upper portion of the chamfer portion may be installed so that the height of the lower portion is located at a height of 70 to 90% of the height of the storage portion.

완충부재는 실리콘 또는 우레탄을 포함할 수 있다.The buffer member may include silicone or urethane.

저장부의 내측면 양측에 설치되는 보조 완충부재를 더 포함할 수 있다.Auxiliary buffer member may be further provided on both sides of the inner side of the storage.

따라서, 선박의 운항 등에 의해 액화가스 저장탱크에 저장된 액화가스에 슬로싱이 발생하게 되면 각 챔퍼부에 형성된 완충부재에 의해 슬로싱 충격을 감소시킬 수 있다. 또한, 완충부재는 액화가스의 유동을 완충 및 저감시킬 수 있다. 이와 같이, 완충부재에 의해 저장탱크에 전달되는 충격이 저감되므로, 저장탱크의 구 조적인 안정성을 향상시킬 수 있다.Therefore, when sloshing occurs in the liquefied gas stored in the liquefied gas storage tank due to the operation of the ship, the sloshing impact can be reduced by the buffer members formed in the respective chamfered portions. In addition, the buffer member can buffer and reduce the flow of the liquefied gas. In this way, since the shock transmitted to the storage tank by the buffer member is reduced, it is possible to improve the structural stability of the storage tank.

본 발명은 다양한 변환을 가할 수 있고 여러 가지 실시 예를 가질 수 있는바, 특정 실시 예들을 도면에 예시하고 상세한 설명에 상세하게 설명하고자 한다. 그러나, 이는 본 발명을 특정한 실시 형태에 대해 한정하려는 것이 아니며, 본 발명의 사상 및 기술 범위에 포함되는 모든 변환, 균등물 내지 대체물을 포함하는 것으로 이해되어야 한다. 본 발명을 설명함에 있어서 관련된 공지 기술에 대한 구체적인 설명이 본 발명의 요지를 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다.BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

이하, 본 발명에 따른 선박용 액화가스 저장탱크 및 이를 구비한 선박의 실시 예를 첨부도면을 참조하여 상세히 설명하기로 하며, 첨부 도면을 참조하여 설명함에 있어, 동일하거나 대응하는 구성 요소는 동일한 도면번호를 부여하고 이에 대한 중복되는 설명은 생략하기로 한다.Hereinafter, with reference to the accompanying drawings, a ship liquefied gas storage tank and a vessel having the same according to the present invention will be described in detail with reference to the accompanying drawings, the same or corresponding components are the same reference numerals. And duplicate description thereof will be omitted.

도 1은 본 발명의 일 실시 예에 따른 선박용 액화가스 저장탱크의 단면도이고, 도 2는 본 발명의 일 실시 예에 따른 선박용 액화가스 저장탱크의 일부를 확대한 단면도이다.1 is a cross-sectional view of a liquefied gas storage tank for ships according to an embodiment of the present invention, Figure 2 is an enlarged cross-sectional view of a portion of a liquefied gas storage tank for ships according to an embodiment of the present invention.

도 1과 도 2를 참고하면, 액화가스 저장탱크는 LNG와 같이 극저온으로 냉각된 액화가스를 저장하기 위한 단열 시스템이 마련되어 있다.1 and 2, the liquefied gas storage tank is provided with an insulation system for storing the liquefied gas cooled to cryogenic temperature, such as LNG.

이러한 액화가스 저장탱크(20)는 LNG 수송선이나 LNG RV(LNG Regasification Vessel)와 같은 선박(10)이나 LNG FPSO(Floating, Production, Storage and Offloading)나 LNG FSRU(Floating Storage and Regasification Unit)와 같은 해상구조물뿐만 아니라 육상의 저장시설물에 설치될 수 있다.The liquefied gas storage tank 20 may be a vessel such as an LNG carrier or an LNG Regasification Vessel (RV RV) 10 or a marine vessel such as an LNG Floating, Production, Storage and Offloading (FPSO) or LNG Floating Storage and Regasification Unit (FSRU). It can be installed in structures as well as onshore storage facilities.

본 실시 예에서 액화가스 저장탱크(20)는 선박(10)에 설치될 수 있으며, 선체가 이동함에 따라 내부에 저장된 화물, 일례로 LNG와 같은 액화가스가 유동하며 슬로싱(sloshing) 현상이 발생할 수 있다.In the present embodiment, the liquefied gas storage tank 20 may be installed in the vessel 10, and as the hull moves, cargoes stored therein, for example, liquefied gas such as LNG may flow and sloshing may occur. Can be.

이러한 액화가스 저장탱크(20)는 내부에 액화가스를 저장하기 위한 내부공간이 형성된 저장부(22)를 포함할 수 있다.The liquefied gas storage tank 20 may include a storage unit 22 having an internal space for storing the liquefied gas therein.

이 저장부(22)의 내부공간은 대략 육방면체형으로 형성되며, 각 모서리에는 대략 46도 각도로 경사진 챔퍼부(24, 26)가 형성될 수 있다.The inner space of the storage unit 22 is formed in a substantially hexagonal shape, and each corner may be formed with chamfers 24 and 26 inclined at an angle of about 46 degrees.

즉, 액화가스 저장탱크(20)는 저장부(22) 및 이 저장부(22)의 내측면 상부 및 하부에 대략 46도 각도로 경사지게 형성된 상부 챔퍼부(24) 및 하부 챔퍼부(26)를 포함할 수 있다.That is, the liquefied gas storage tank 20 includes a storage unit 22 and an upper chamfer 24 and a lower chamfer 26 formed to be inclined at an angle of about 46 degrees on the upper and lower inner surfaces of the storage unit 22. It may include.

이 상부 펌퍼부(24) 및 하부 챔퍼부(26)는 내부에 저장된 액화가스가 유동함에 따라 발생하는 슬로싱 충격력을 감소시킬 수 있다.The upper pump portion 24 and the lower chamfer portion 26 can reduce the sloshing impact force generated as the liquefied gas stored therein flows.

본 실시 예에서, 저장부(22)에는 하부 챔퍼부(26)에 발생하는 슬로싱 충격력을 감소시키기 위해, 하부 챔퍼부(26)의 내측으로 완충부재(30)가 설치될 수 있다.In the present embodiment, the shock absorbing member 30 may be installed inside the lower chamfer 26 to reduce the sloshing impact force generated in the lower chamfer 26.

이를 위해, 저장부(22)의 내측면에는 완충부재(30)를 결합하기 위한 걸이부(28)가 형성될 수 있다.To this end, a hook portion 28 for coupling the buffer member 30 may be formed on the inner surface of the reservoir 22.

이 걸이부(28)는 챔퍼부의 주변부에 설치되어 완충부재(30)의 주변부를 감싸 도록 형성될 수 있다.The hook portion 28 may be installed to surround the chamfer portion to surround the periphery of the buffer member 30.

일례로, 걸이부(28)는 챔퍼부 주변의 내측면에 설치된 제1부재(28a)와, 이 제1부재(28a)에서 완충부재(30)의 주변부를 감싸도록 꺾여 형성된 제2부재(28b)를 포함할 수 있다.In one example, the hook portion 28 is the first member 28a provided on the inner surface around the chamfer portion, and the second member 28b formed by bending the first member 28a so as to surround the periphery of the buffer member 30. ) May be included.

본 실시 예에서, 완충부재(30)는 걸이부(28)에 의해 저장부(22)의 내측면에 결합되도록 구성되어 있으나, 이에 한정되지 않으며 완충부재(30)를 가로질러 설치되는 다수의 케이블 등에 의해 결합되는 것도 가능하다.In the present embodiment, the shock absorbing member 30 is configured to be coupled to the inner surface of the storage part 22 by the hook part 28, but is not limited thereto, and a plurality of cables installed across the shock absorbing member 30. It is also possible to combine by.

또한, 본 실시 예에서 완충부재(30)는 점성이 큰 물질로 이루어질 수 있으며, 일례로 실리콘 또는 우레탄 재질을 포함할 수 있다. 또한, 완충부재(30)는 젤 또는 겔과 같은 상태로 존재할 수 있으며, 액화가스의 유동에 따른 충격을 흡수할 수 있다.In addition, the buffer member 30 in the present embodiment may be made of a material having a high viscosity, for example, may include a silicon or urethane material. In addition, the buffer member 30 may exist in a state such as a gel or a gel, and may absorb an impact caused by the flow of the liquefied gas.

완충부재(30)가 젤 또는 겔과 같은 상태로 존재할 경우, 완충부재(30)의 형체를 유지하기 위해 팩(pack)을 더 포함하는 것도 가능하다.When the buffer member 30 is present in a gel or gel state, it is also possible to further include a pack to maintain the shape of the buffer member 30.

한편, 액화가스 저장탱크(20)는 저장부(22)의 내부에 저장된 액화가스의 높이가 저장부(22) 높이의 15 내지 30%의 높이인 A영역에 있을 경우, 선체의 유동에 의한 액화가스의 슬로싱 충격이 가장 크게 발생할 수 있다.On the other hand, the liquefied gas storage tank 20 is liquefied by the flow of the hull, when the height of the liquefied gas stored in the storage 22 is in the area A of 15 to 30% of the height of the storage 22. The sloshing impact of the gas can occur most greatly.

또한, 본 실시 예에서 하부 챔퍼부(26)에 설치된 완충부재(30)는 저장부(22) 높이의 적어도 15 내지 30% 영역을 커버하도록 설치되며, 이에 따라 액화가스의 슬로싱 충격을 효과적으로 감소시킬 수 있다.In addition, in the present embodiment, the buffer member 30 installed in the lower chamfer portion 26 is installed to cover at least 15 to 30% of the height of the storage portion 22, thereby effectively reducing the sloshing impact of the liquefied gas. You can.

또한, 본 실시 예에서 완충부재(30)는 하부 챔퍼부(26)에 설치된 것으로 설 명하고 있으나, 이에 한정되지 않으며 도 3과 같이 상부 챔퍼부(24)에 더 설치되어 상부에서 발생되는 슬로싱 충격을 완충하는 것도 가능하다.In addition, the buffer member 30 is described as being installed in the lower chamfer portion 26 in the present embodiment, but is not limited thereto and is further installed in the upper chamfer portion 24 as shown in FIG. It is also possible to cushion the impact.

도 3은 본 발명의 다른 실시 예에 따른 액화가스 저장탱크의 단면도이다.3 is a cross-sectional view of a liquefied gas storage tank according to another embodiment of the present invention.

여기서, 상부 챔퍼부(24)에 설치되는 완충부재(30)는 저장부(22) 높이의 적어도 70 내지 90%인 B영역을 커버하도록 설치될 수 있다.Here, the shock absorbing member 30 installed in the upper chamfer 24 may be installed to cover a region B of at least 70 to 90% of the height of the storage 22.

상부 챔퍼부(24)에 설치된 완충부재(30)는 액화가스가 저장부(22)에 가득찬 상태에서 발생되는 슬로싱 충격을 흡수하고, 슬로싱의 발생을 억제할 수 있다.The buffer member 30 provided in the upper chamfer portion 24 can absorb the sloshing shock generated when the liquefied gas is filled in the storage portion 22 and can suppress the occurrence of sloshing.

도 4는 본 발명의 또 다른 실시 예에 따른 액화가스 저장탱크의 단면도이다.4 is a cross-sectional view of a liquefied gas storage tank according to another embodiment of the present invention.

도 4를 참고하면, 액화가스 저장탱크(20)는 각각의 챔퍼부(24, 26) 이외의 저장부(22)의 내측면 영역에 보조 완충부재(35)를 더 설치하여 슬로싱 충격을 완충시키는 것도 가능하다.Referring to FIG. 4, the liquefied gas storage tank 20 further installs an auxiliary buffer member 35 in the inner surface region of the storage portion 22 other than the respective chamfer portions 24 and 26 to cushion the sloshing shock. It is also possible.

일례로, 보조 완충부재(35)를 저장부(22)의 내측면 양측벽에 설치될 수 있다.For example, the auxiliary buffer member 35 may be installed on both side walls of the inner surface of the storage unit 22.

여기서, 보조 완충부재(35)는 챔퍼부에 설치되어 완충부재(30)를 결합시키는 걸이부(28) 등에 의해 저장부(22)의 양측벽에 결합될 수 있다.Here, the auxiliary buffer member 35 may be installed on the chamfer portion and coupled to both side walls of the storage portion 22 by a hook portion 28 or the like for coupling the buffer member 30.

상기에서는 본 발명의 바람직한 실시 예를 참조하여 설명하였지만, 해당 기술분야에서 통상의 지식을 가진 자라면 하기의 특허 청구의 범위에 기재된 본 발명의 사상 및 영역으로부터 벗어나지 않는 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the present invention as set forth in the claims below It will be appreciated that modifications and variations can be made.

도 1은 본 발명의 일 실시 예에 따른 액화가스 저장탱크의 단면도.1 is a cross-sectional view of a liquefied gas storage tank according to an embodiment of the present invention.

도 2는 본 발명의 일 실시 예에 따른 액화가스 저장탱크의 일부를 확대한 단면도.2 is an enlarged cross-sectional view of a portion of a liquefied gas storage tank according to an embodiment of the present invention.

도 3은 본 발명의 다른 실시 예에 따른 액화가스 저장탱크의 단면도.3 is a cross-sectional view of a liquefied gas storage tank according to another embodiment of the present invention.

도 4는 본 발명의 또 다른 실시 예에 따른 액화가스 저장탱크의 단면도.4 is a cross-sectional view of a liquefied gas storage tank according to another embodiment of the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10 : 선박 20 : 저장탱크10: vessel 20: storage tank

22 : 저장부 24 : 상부 챔퍼부22: storage portion 24: upper chamfer portion

26 : 하부 챔퍼부 28 : 걸이부26: lower chamfer portion 28: hook portion

28a : 제1부재 28b : 제2부재28a: first member 28b: second member

30 : 완충부재30: buffer member

Claims (10)

액화가스를 저장하기 위한 내부공간을 갖는 저장부와,A storage unit having an internal space for storing liquefied gas, 상기 저장부의 내측면 모서리에 경사지게 형성된 챔퍼부와,A chamfer portion formed to be inclined at an inner side edge of the storage portion; 상기 챔퍼부 중 적어도 하나에 설치된 완충부재를 포함하는 선박용 액화가스 저장탱크.A marine liquefied gas storage tank comprising a buffer member installed on at least one of the chamfer portion. 청구항 1에 있어서,The method according to claim 1, 상기 저장부의 내측면에 형성되며 상기 완충부재의 주변부를 감싸 결합시키는 걸이부를 더 포함하는 것을 특징으로 하는 선박용 액화가스 저장탱크.The liquefied gas storage tank for a ship, characterized in that it further comprises a hook portion formed on the inner side of the storage portion wrapped around the buffer member. 청구항 1에 있어서,The method according to claim 1, 상기 완충부재는 실리콘 또는 우레탄을 포함하는 것을 특징으로 하는 선박용 액화가스 저장탱크.The buffer member is a liquefied gas storage tank for ships, characterized in that containing silicon or urethane. 청구항 1 내지 청구항 3 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 완충부재는 상기 저장부 높이의 적어도 15 내지 30%의 영역을 커버하도록 설치된 것을 특징으로 하는 선박용 액화가스 저장탱크.The buffer member is a marine liquefied gas storage tank, characterized in that installed to cover an area of at least 15 to 30% of the height of the storage. 청구항 1 내지 청구항 3 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 완충부재는 상기 저장부 높이의 적어도 70 내지 90%의 영역을 커버하도록 설치된 것을 특징으로 하는 선박용 액화가스 저장탱크.The buffer member is a liquefied gas storage tank for ships, characterized in that installed to cover an area of at least 70 to 90% of the height of the storage. 청구항 1 내지 청구항 3 중 어느 한 항에 있어서,The method according to any one of claims 1 to 3, 상기 저장부의 내측면 양측에 설치되는 보조 완충부재를 더 포함하는 것을 특징으로 하는 선박용 액화가스 저장탱크.The vessel liquefied gas storage tank further comprises an auxiliary buffer member provided on both sides of the inner side of the storage. 선체와,Hull, 상기 선체에 설치되는 청구항 1 내지 청구항 3 중 어느 한 항에 따른 선박용 액화가스 저장탱크를 포함하는 선박.Ship comprising a liquefied gas storage tank for ship according to any one of claims 1 to 3 installed in the hull. 청구항 7에 있어서,The method of claim 7, 상기 완충부재는 상기 저장부 높이의 적어도 15 내지 30%의 영역을 커버하도록 설치된 것을 특징으로 하는 선박.And the buffer member is installed to cover an area of at least 15 to 30% of the height of the reservoir. 청구항 7에 있어서,The method of claim 7, 상기 완충부재는 상기 저장부 높이의 적어도 70 내지 90%의 영역을 커버하도록 설치된 것을 특징으로 하는 선박.And the buffer member is installed to cover an area of at least 70 to 90% of the height of the reservoir. 청구항 7에 있어서,The method of claim 7, 상기 저장부의 내측면 양측에 설치되는 보조 완충부재를 더 포함하는 것을 특징으로 하는 선박.Ship further comprising an auxiliary buffer member installed on both sides of the inner side of the storage.
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KR101349871B1 (en) * 2011-12-16 2014-01-10 삼성중공업 주식회사 Lng storage tank
KR101942351B1 (en) * 2013-04-30 2019-04-11 현대중공업 주식회사 Carrier vessel of liquefied nature gas
KR101447861B1 (en) * 2013-05-21 2014-10-07 삼성중공업 주식회사 Cargo tank for liquid cargo

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