WO2019208530A1 - Navire - Google Patents

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Publication number
WO2019208530A1
WO2019208530A1 PCT/JP2019/017111 JP2019017111W WO2019208530A1 WO 2019208530 A1 WO2019208530 A1 WO 2019208530A1 JP 2019017111 W JP2019017111 W JP 2019017111W WO 2019208530 A1 WO2019208530 A1 WO 2019208530A1
Authority
WO
WIPO (PCT)
Prior art keywords
ship
liquefied gas
tank
gas tank
section
Prior art date
Application number
PCT/JP2019/017111
Other languages
English (en)
Japanese (ja)
Inventor
次郎 佐々木
正規 中村
直樹 大庭
Original Assignee
佐々木造船株式会社
三井Ｅ＆Ｓ造船株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 佐々木造船株式会社, 三井Ｅ＆Ｓ造船株式会社 filed Critical 佐々木造船株式会社
Priority to CN201980027905.9A priority Critical patent/CN112272638A/zh
Publication of WO2019208530A1 publication Critical patent/WO2019208530A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B11/00—Interior subdivision of hulls
    • B63B11/04—Constructional features of bunkers, e.g. structural fuel tanks, or ballast tanks, e.g. with elastic walls
    • 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
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B71/00—Designing vessels; Predicting their performance

Definitions

  • the present invention relates to a ship, and more particularly to a ship that supplies liquefied gas to a ship that transports liquefied gas or to a ship that uses liquefied gas as fuel.
  • This multiple tank arrangement ensures that if the hull is damaged, the remaining capacity can be secured and the buoyancy of most parts of the ship will not be lost. Since the front-rear direction is divided by several watertight bulkheads, a plurality of tanks are required to be arranged in accordance with the watertight section between the watertight bulkheads.
  • liquefied natural gas LNG
  • a liquefied gas supply ship equipped with a liquefied gas tank for supplying liquefied gas as fuel to a ship using these liquefied gases as fuel is required.
  • the present invention has been made in view of the above-described situation, and an object of the present invention is to ensure damage stability even in a configuration of a single liquefied gas tank in a ship carrying liquefied gas in a liquefied gas tank.
  • An object of the present invention is to provide a ship that can simplify the ballast operation at the time.
  • the ship of the present invention is a ship that transports liquefied gas in a liquefied gas tank, and the liquefaction is 40% or more and 75% or less of the total length of the ship with respect to the ship's length direction. Only one gas tank is provided, and a preliminary buoyancy section of 10% or more and 25% or less of the total length of the ship provided in front of the liquefied gas tank, and 15% or more of the total length of the ship provided behind the liquefied gas tank and 35 % Or less of the preliminary buoyancy section of not more than%.
  • the buoyancy and the center of gravity are easily balanced by a small change in trim, and there is an effect that the degree of freedom of the arrangement of heavy objects increases at the time of design.
  • the ship when the ship has a total length of 65 m or more and 120 m or less, the ship can take advantage of this structure.
  • ships with a freeboard length of less than 70m may be partially damaged by the classification association's stability rules for damage, which is particularly effective for ships with a freeboard length of 70m or more. is there.
  • the ship is a liquefied gas supply ship that supplies the liquefied gas in the liquefied gas tank to the liquefied gas tank of another ship, not only the convenience of ballasting when supplying fuel to the other ship but also safety It can be even higher.
  • FIG. 1 is a side view schematically showing the configuration of a ship according to an embodiment of the present invention.
  • FIG. 2 is a side view schematically showing a configuration of a conventional ship in which two liquefied gas tanks are provided in series in the longitudinal direction of the hull.
  • a ship As a ship provided with this liquefied gas tank, here, a liquefied gas supply ship (bunker ship) will be described as an example, which transports and supplies liquefied gas as fuel to a ship using liquefied gas as fuel.
  • the ship of the invention is particularly effective in a small liquefied gas carrier ship that carries liquefied gas such as LNG (liquefied natural gas) and LPG (liquefied propane).
  • LNG liquefied natural gas
  • LPG liquefied propane
  • the present invention is not limited to this liquefied gas carrier ship, but can be applied to other liquefied gas carrier ships, ships equipped with a liquefied gas fuel tank, and the like.
  • the total length of the ship is at 120m or less than 65m
  • the total capacity of the liquefied gas tank means a 500m 3 ⁇ 13000m 3 about the ship. It is a ship to which the damage stability rules apply.
  • This damage stability is, for example, the stability of the ship's one side of the hull that has been submerged against the hull that has been preset according to the type and size of the ship.
  • the water and oil installed in the section within the damaged range are completely spilled and replaced with seawater, and buoyancy is lost.
  • lateral tilt and trim change occur due to loss of buoyancy due to damage and weight imbalance (asymmetric flooding).
  • a ship 1 is a liquefied gas supply ship, provided with watertight bulkheads 7 and 8 in the longitudinal direction of a hull 2, a bow section 11, a tank section 12, It is divided into a stern section 13.
  • the bow section 11 is configured as a preliminary buoyancy section having a length Lf that is 10% or more and 25% or less of the total length Ls of the ship provided in front of the liquefied gas tank 20.
  • a watertight bulkhead 7 and a watertight bulkhead 7a called a bow bulkhead are provided, and a forepeak tank (not shown) is arranged.
  • the fuel oil tank 21 is arrange
  • the bow section 11 is used as a preliminary buoyancy section, and is formed longer in the front-rear direction of the ship than the conventional ship 1X, so that sufficient stability at the time of damage can be ensured.
  • the tank section 12 includes only one liquefied gas tank 20 having a length T that is 40% or more and 75% or less of the total length Ls of the ship, and is configured with a length Lt.
  • the liquefied gas tank 20 is a cylindrical tank in which a cylinder is connected between two hemispheres.
  • the liquefied gas tank is a tank of “TYPE-C” of the rules of the International Maritime Organization.
  • the stern section 13 is provided with a main engine and auxiliary equipment (not shown), and a propeller 3 and a rudder 4 for propulsion and steering are provided below the rear section.
  • An upper structure 5 and a chimney 6 are provided above the upper deck of the stern section 13.
  • the upper structure 5 is provided with a bridge on which a sailor operates the ship 1.
  • the stern section 13 is composed of a length La of 15% or more and 35% or less of the total length Ls of the ship. If the fuel tank 22 is arranged in the stern section 13, the stern section 13 can be used more effectively. Moreover, if the upper structure 5 is enlarged, the freedom degree of a residence area design will increase and a crew member's comfort can be improved.
  • the stern section 13 is used as a preliminary buoyancy section, and has sufficient preliminary buoyancy that was not the conventional ship 1X, thereby ensuring sufficient damage stability.
  • the tank section 12 in which the liquefied gas tank 20 for laminating the liquefied gas is disposed loses most of the buoyancy of the ship at the time of the damage, but the bow section 11 or Since the stern section 13 has sufficient preliminary buoyancy, it can be easily adapted to this rule.
  • the conventional ship 1X Comparing the ship 1 of the present invention shown in FIG. 1 with the conventional ship 1X shown in FIG. 2, the conventional ship 1X has two cylindrical liquefied gas tanks 20 arranged in series in the longitudinal direction of the ship. On the other hand, in the ship 1 of the present invention, one liquefied gas tank 20 is arranged in an elongated cylindrical shape.
  • the conventional ship 1X is divided into four sections, a bow section 11, two tank sections 12, 12, and a stern section 13, with watertight bulkheads 7, 8 in the longitudinal direction of the ship.
  • the stability rule is secured by using two tank sections 12.
  • the preliminary buoyancy is increased by configuring the tank section 12 and configuring the bow section 11 long or by providing the stern section 13. It is configured to satisfy the damage stability rules.
  • the tank section 12 of the hull when the tank section 12 of the hull is damaged, the tank section 12 is larger than the conventional ship 1X, so that more buoyancy is lost.
  • the appropriate hull profile of longer and greater reserve buoyancy is selected, so that the damage stability of the damage stability rule can be satisfied.
  • the conventional ship 1X having the two liquefied gas tanks 20 supplies the liquefied gas only from one liquefied gas tank 20 to the other ship. Since only the liquefied gas tank becomes lighter, a relatively large trim change occurs. Therefore, in order to offset the trim change and maintain the trim posture, the ballast water in the ballast tank provided in the bow section 11 and the tank section 12 is increased or decreased. It is necessary to perform a ballast operation.
  • the liquefied gas tank 20 supplies the liquefied gas to another ship, the liquefied gas is reduced in one liquefied gas tank. Because it is equally light, the trim change is relatively small, and the ballast operation to maintain the trim position can be made smaller.
  • the trim change at the time of supplying the liquefied gas can be reduced, the ballast operation can be made relatively small and relatively simple, and the tank section 12 of the hull is damaged. Damage stability can be satisfied.
  • the trim change during the supply (unloading) of the liquefied gas hardly occurs, and the effect of simplifying the ballast operation is the customer ship (other ship) in the liquefied gas supply ship (bunker ship) particularly requiring safety.
  • the effect is high when the gas is supplied (when Ship ⁇ to Ship transfer).

Landscapes

  • 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

L'invention concerne un navire 1 de transport de gaz liquéfié dans un réservoir de gaz liquéfié 20, le navire 1 n'ayant qu'un réservoir de gaz liquéfié 20 ayant une longueur T de 40 à 75 % de la longueur totale Ls du navire par rapport à la direction de la longueur du navire et étant configuré de façon à être pourvu d'au moins une section de flottabilité de secours parmi une section de flottabilité de secours de 10 à 25 % de la longueur totale Ls du navire à l'avant du réservoir de gaz liquéfié 20 et une section de flottabilité de secours de 15 à 35 % de la longueur totale Ls du navire à l'arrière du réservoir de gaz liquéfié 20. Cette configuration permet de garantir une stabilité après avarie même pour un navire ayant une configuration de réservoir de gaz liquéfié et simplifie le fonctionnement du ballast pendant la manutention de cargaison.
PCT/JP2019/017111 2018-04-24 2019-04-23 Navire WO2019208530A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201980027905.9A CN112272638A (zh) 2018-04-24 2019-04-23 船舶

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-082991 2018-04-24
JP2018082991A JP7193250B2 (ja) 2018-04-24 2018-04-24 船舶

Publications (1)

Publication Number Publication Date
WO2019208530A1 true WO2019208530A1 (fr) 2019-10-31

Family

ID=68293957

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/017111 WO2019208530A1 (fr) 2018-04-24 2019-04-23 Navire

Country Status (3)

Country Link
JP (1) JP7193250B2 (fr)
CN (1) CN112272638A (fr)
WO (1) WO2019208530A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021075338A1 (fr) 2019-10-15 2021-04-22 株式会社Ｎｔｔドコモ Terminal et procédé de communication sans fil
JP7446928B2 (ja) 2020-06-12 2024-03-11 三井Ｅ＆Ｓ造船株式会社 液化ガス運搬船
CN112874720B (zh) * 2021-03-01 2023-09-26 南通中远海运船务工程有限公司 一种深水动力定位原油输送船的损失浮力建造方法
CN113212640B (zh) * 2021-06-15 2022-07-22 江南造船(集团)有限责任公司 货舱的半封闭隔舱壁结构
CN116902164B (zh) * 2023-09-14 2023-11-21 常州市戍海智能技术有限公司 一种无人船航行稳定性能模拟试验系统

Citations (5)

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US20130065461A1 (en) * 2011-09-13 2013-03-14 Stx Us Marine, Inc. Small size floating vessel using a dual fuel system
JP2014108759A (ja) * 2012-12-04 2014-06-12 Kawasaki Heavy Ind Ltd 低沸点燃料の移送システム、低沸点燃料の移送方法及び低沸点燃料の燃料供給船
CN203975160U (zh) * 2014-06-12 2014-12-03 中国海洋石油总公司 一种液化天然气燃料加注船
CN105605416A (zh) * 2015-12-25 2016-05-25 江苏现代造船技术有限公司 一种船用lng加注机
CN105889751A (zh) * 2016-04-11 2016-08-24 上海新奥新能源技术有限公司 Lng加注系统、bog处理系统及移动lng加注船

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GB9501169D0 (en) * 1995-01-20 1995-03-08 British Petroleum Co Plc Improvements in and relating to ships
KR100961867B1 (ko) 2009-10-16 2010-06-09 대우조선해양 주식회사 가스연료용 연료탱크를 가지는 부유식 구조물
JP6067804B1 (ja) * 2015-08-25 2017-01-25 三井造船株式会社 液化ガス貯蔵設備を備えた浮体構造物及びその設計方法
CN205686599U (zh) * 2016-06-04 2016-11-16 上海新奥新能源技术有限公司 一种移动lng加注船
JP6737431B2 (ja) * 2016-10-11 2020-08-12 三井Ｅ＆Ｓ造船株式会社 液化ガス運搬船

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130065461A1 (en) * 2011-09-13 2013-03-14 Stx Us Marine, Inc. Small size floating vessel using a dual fuel system
JP2014108759A (ja) * 2012-12-04 2014-06-12 Kawasaki Heavy Ind Ltd 低沸点燃料の移送システム、低沸点燃料の移送方法及び低沸点燃料の燃料供給船
CN203975160U (zh) * 2014-06-12 2014-12-03 中国海洋石油总公司 一种液化天然气燃料加注船
CN105605416A (zh) * 2015-12-25 2016-05-25 江苏现代造船技术有限公司 一种船用lng加注机
CN105889751A (zh) * 2016-04-11 2016-08-24 上海新奥新能源技术有限公司 Lng加注系统、bog处理系统及移动lng加注船

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JP2019188984A (ja) 2019-10-31
JP7193250B2 (ja) 2022-12-20
CN112272638A (zh) 2021-01-26

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