WO2022007216A1 - 一种液化气运输船 - Google Patents

一种液化气运输船 Download PDF

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Publication number
WO2022007216A1
WO2022007216A1 PCT/CN2020/120065 CN2020120065W WO2022007216A1 WO 2022007216 A1 WO2022007216 A1 WO 2022007216A1 CN 2020120065 W CN2020120065 W CN 2020120065W WO 2022007216 A1 WO2022007216 A1 WO 2022007216A1
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Prior art keywords
bulkhead
liquid
liquid tank
tank
fuel
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PCT/CN2020/120065
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English (en)
French (fr)
Inventor
陈兵
林青山
蔡乾亚
胡可一
郑双燕
何儒
周鑫元
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江南造船(集团)有限责任公司
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Publication of WO2022007216A1 publication Critical patent/WO2022007216A1/zh

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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 
    • 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
    • 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

Definitions

  • the invention relates to the technical field of liquefied gas transportation, in particular to a liquefied gas transportation ship.
  • Liquefied gas is the main industrial and civil fuel and chemical raw material. It is a non-polluting clean energy and occupies a very important position in the world's energy structure, accounting for about 20% to 25% of the total energy.
  • the proportion of liquefied gas energy used in industrially developed countries has far exceeded 50%, and China has also risen to 10%, and is in the process of further rapid growth.
  • the annual growth rate of the world's gas energy consumption has been higher than that of oil and coal demand, and its shipping volume is also increasing year by year.
  • Liquefied gas carriers are mainly used to transport gas energy such as liquefied petroleum gas (LPG), petrochemical products (ethane, butane, ethylene, vinyl chloride monomer, etc.), chemical gas and liquid ammonia.
  • LPG liquefied petroleum gas
  • petrochemical products ethane, butane, ethylene, vinyl chloride monomer, etc.
  • chemical gas and liquid ammonia As the world's gas energy consumption and gas chemical raw material demand continue to rise, this brings great development opportunities to liquefied gas ships. Under this international situation, all ship design units have increased their research and development efforts on liquefied gas ships.
  • the cargo carried by the liquefied gas carrier itself can be used as fuel to provide navigation power for the ship, which is convenient and clean.
  • conventional liquefied gas carriers usually use cargo fuel by adding deck tanks, which requires placing deck tanks on the deck, adding corresponding liquid cargo pipelines and supporting outfitting parts, which will increase the cost; at the same time , the position of the deck tank and its facilities is very high, which will affect the blind area of the ship, and its high center of gravity is not conducive to the stability of the ship. Therefore, there is an urgent need for a new form of liquefied gas carrier.
  • the present invention provides a liquefied gas carrier that has a safe and simple structure and can use its own cargo as fuel.
  • the invention provides a liquefied gas carrier, comprising a liquid tank arranged in the hull, a gas chamber for releasing pressure is arranged on the top of the liquid tank, and a transverse transverse direction is arranged in the liquid tank along the width direction of the liquid tank.
  • the bulkhead is provided with longitudinal bulkheads along the length direction of the liquid tank, the transverse bulkheads and the longitudinal bulkheads are vertically arranged, and the liquid tank is divided into at least three liquid tank areas, namely at least one fuel area and two liquid tank areas. The cargo area, the fuel area and the tops of the two liquid cargo areas are all communicated with the gas chamber.
  • the air chamber is located just above the connecting position of the transverse bulkhead and the longitudinal bulkhead.
  • the transverse bulkhead and the longitudinal bulkhead are arranged in a cross shape, and the liquid tank is divided into two fuel areas and two liquid cargo areas, and the tops of the two fuel areas and the two liquid cargo areas are both communicated with the air chamber.
  • the transverse bulkhead and the longitudinal bulkhead are arranged in a T-shape, the longitudinal bulkhead extends along the entire length of the liquid tank, and the transverse bulkhead is connected between the longitudinal bulkhead and one side wall of the liquid tank During this time, the liquid tank is divided into one fuel area and two liquid cargo areas.
  • the bottom of the fuel area is provided with a horizontal bulkhead, and one of the cargo areas extends below the horizontal bulkhead.
  • the transverse bulkhead and the longitudinal bulkhead are arranged in a T-shape, the transverse bulkhead extends along the entire width of the liquid tank, and the longitudinal bulkhead is connected between the transverse bulkhead and one end wall of the liquid tank During this time, the liquid tank is divided into one fuel area and two liquid cargo areas.
  • a liquid collecting tank is provided at the bottom of the liquid tank, and the liquid collecting tank is located directly below the air chamber.
  • the sump is located just below the connecting position of the transverse bulkhead and the longitudinal bulkhead.
  • the advantage of the present invention is that, by arranging transverse bulkheads and longitudinal bulkheads in the liquid tank, the liquid tank is divided into at least one fuel area and two liquid cargo areas, and the cargo used as fuel is independently stored in the fuel area , can effectively use the cargo carried by the liquefied gas ship, save the cost of adding deck tanks and corresponding liquid cargo pipelines; at the same time, it can ensure full-load navigation in other liquid cargo areas, so that there will be no free liquid surface in the liquid cargo area. better; moreover, the fuel area of the present invention is closer to the middle of the ship than the fore and aft fuel tanks, the ship's draught changes little during use, and better floating stability can be maintained.
  • Embodiment 1 is a three-way schematic diagram of Embodiment 1;
  • Fig. 2 is the three-way schematic diagram of embodiment two
  • Fig. 3 is the three-way schematic diagram of embodiment three
  • FIG. 4 is a three-way schematic diagram of the fourth embodiment.
  • the present invention provides a liquefied gas carrier
  • the liquefied gas carrier includes a liquid tank 3 arranged in the hull 1, the top of the liquid tank 3 is provided with an air chamber 2 for releasing pressure,
  • the gas chamber 2 is located on the midline in the length direction of the liquid tank 3, and extends from the open deck of the hull 1.
  • the main pipelines in the liquid supply tank 3 and the equipment such as the liquid cargo pump enter and exit, and store the gasification due to the change of the ambient temperature. gas.
  • the liquid tank 3 is provided with a transverse bulkhead 41 along the width direction of the liquid tank, and a longitudinal bulkhead 42 is provided along the length direction of the liquid tank.
  • the bulkhead 42 is arranged vertically, and divides the liquid tank 3 into at least three liquid tank areas, including at least one fuel area 5 and two liquid cargo areas 6, and the tops of the fuel area 5 and the two liquid cargo areas 6 are connected with the gas chamber 2. connected.
  • the air chamber 2 is located just above the connection position of the transverse bulkhead 41 and the longitudinal bulkhead 42, so that each area can share the same air chamber 2 without changing the shape of the liquid tank 3, which saves the layout of the deck space, and the manufacturing cost of the liquid tank and the liquid cargo system is saved.
  • the hull 1 will produce six degrees of freedom motion in the waves.
  • the roll that has the greatest impact on the stability of the ship is the roll.
  • the liquid tank 3 When the transport ship loads and unloads cargo in different ports, the liquid tank 3 will be partially loaded. The larger the free liquid level inside the tank, the easier it is to cause structural damage when the liquid cargo shakes.
  • the arrangement of the longitudinal bulkhead 42 can significantly reduce the free liquid surface, ease the rolling, and effectively improve the stability of the ship.
  • the independent fuel area 5 is divided by the transverse bulkhead 41 and the longitudinal bulkhead 42, which can ensure that other cargo areas 6 sail with full load during the voyage, so that there will be no free liquid surface in the liquid cargo area 6, and the stability of the ship will be improved. better.
  • the bottom of the liquid tank 3 is provided with a liquid collecting tank 31.
  • the liquid collecting tank 31 can prevent the low-temperature liquid cargo from dispersing at the bottom of the liquid tank 3 during unloading, so that the residual low-temperature liquid cargo at the bottom of the liquid tank 3 can flow back. And concentrated, and the suction port of the liquid cargo pump can be arranged at the bottom of the liquid tank 3 as much as possible.
  • the liquid collecting tank 31 is located directly under the gas chamber 2, preferably located directly under the connection position of the transverse bulkhead 41 and the longitudinal bulkhead 42.
  • connection transition not only has better extraction effect, but also realizes point-to-point centralized arrangement, which saves space, facilitates processing and post-maintenance, and saves the cost of related outfitting parts.
  • the present invention designs four arrangement forms of the liquid tanks 3 .
  • the transverse bulkhead 41 extends along the entire width of the liquid tank 3
  • the longitudinal bulkhead 42 extends along the entire length of the liquid tank 3 and is located at the edge of the liquid tank 3 .
  • the two are arranged in a cross shape, and the liquid tank 3 is divided into two fuel areas 5 and two liquid cargo areas 6.
  • the two fuel areas 5 can meet the endurance needs of the small liquefied gas carrier.
  • the gas chamber 2 is located just above the intersection of the transverse bulkhead 41 and the longitudinal bulkhead 42 , and the tops of the two fuel areas 5 and the two cargo areas 6 communicate with the gas chamber 2 .
  • the transverse bulkhead 41 extends at the sump 31 to the bottom of the sump 31 to separate the cargo entering the sump 31 from the fuel zone 5 and the cargo zone 6 to avoid mixing.
  • the transverse bulkhead 41 is connected between the longitudinal bulkhead 42 and one side wall of the liquid tank 3 , and the longitudinal bulkhead 42 is along the entire length of the liquid tank 3 They extend and are located on the center line of the liquid tank 3 . From a top view, the two are arranged in a T-shape, and the liquid tank 3 is divided into a fuel area 5 and two liquid cargo areas 6 .
  • the gas chamber 2 is located just above the connecting position of the transverse bulkhead 41 and the longitudinal bulkhead 42 , and the tops of one fuel area 5 and two liquid cargo areas 6 communicate with the gas chamber 2 .
  • liquid collecting tank 31 at the bottom of the liquid tank 3 and just below the gas chamber 2 at the intersection of the transverse bulkhead 41 and the longitudinal bulkhead 42. Both the transverse bulkhead 41 and the longitudinal bulkhead 42 are located in the liquid collecting tank 31. It extends to the bottom of the sump 31 at the bottom of the sump, which can separate the cargo entering the sump 31 from the fuel area 5 and the cargo area 6 to avoid mixing.
  • the transverse bulkhead 41 is connected between the longitudinal bulkhead 42 and one side wall of the liquid tank 3 , and the longitudinal bulkhead 42 is along the entire length of the liquid tank 3 It extends and is located on the center line of the liquid tank 3. From a top view, the transverse bulkhead 41 and the longitudinal bulkhead 42 are arranged in a T-shape, and the liquid tank 3 is divided into a fuel area 5 and two liquid cargo areas 6. The fuel area 5 The bottom is provided with a horizontal bulkhead 43, one of the cargo areas 6 extends below the horizontal bulkhead 43.
  • the gas chamber 2 is located just above the connecting position of the transverse bulkhead 41 and the longitudinal bulkhead 42 , and the tops of one fuel area 5 and two liquid cargo areas 6 communicate with the gas chamber 2 .
  • a first liquid collecting tank 311 is provided at the bottom of the fuel area 5, and a second liquid collecting tank 312 is also provided at the bottom of the liquid tank 3 and directly below the gas chamber 2.
  • the two liquid cargo areas 6 are connected to the second collecting tank 312.
  • the liquid tank 312 communicates with each other.
  • the transverse bulkhead 41 extends along the entire width of the liquid tank 3, and the longitudinal bulkhead 42 is connected between the transverse bulkhead 41 and the Between one end wall of the liquid tank 3 and located on the center line of the liquid tank 3 , the two are arranged in a T-shape from a top view, and the liquid tank 3 is divided into a fuel area 5 and two liquid cargo areas 6 .
  • the gas chamber 2 is located just above the connecting position of the transverse bulkhead 41 and the longitudinal bulkhead 42 , and the tops of one fuel area 5 and two liquid cargo areas 6 communicate with the gas chamber 2 .
  • a liquid collecting tank 31 is provided at the bottom of the liquid tank 3 and just below the gas chamber 2.
  • the transverse bulkhead 41 extends from the liquid collecting tank 31 to the bottom of the liquid collecting tank 31, and can connect the fuel area 5 and the liquid cargo area from the fuel area 5 to the liquid cargo area. 6.
  • the liquid cargo entering the sump 31 is separated to avoid mixing.

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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

本发明提供了一种液化气运输船，液罐内沿液罐的宽度方向设有横舱壁，沿液罐的长度方向设有纵舱壁，横舱壁和纵舱壁垂直设置，将液罐划分为至少一个燃料区和左右两个液货区，燃料区和两个液货区的顶部均与气室相连通。本发明的有益之处在于，通过在液罐内设置横舱壁和纵舱壁，将液罐划分成至少一个燃料区和两个液货区，将用作燃料的货物独立存放在燃料区中，能有效利用液化气船运载的货物，节省了增加甲板罐及相应液货管路的成本；同时，可以保证其他液货区满载航行，使得液货区内不会出现自由液面，稳性更好；而且，本发明的燃料区比首尾燃油舱更接近船中，使用的过程中船舶吃水变化不大，能够保持更好的浮态稳定性。

Description

一种液化气运输船 技术领域
本发明涉及液化气运输技术领域，尤其涉及一种液化气运输船。
背景技术
液化气是主要的工业和民用燃料及化学原料，是一种无污染的清洁能源，在世界的能源结构中占有十分重要的地位，约占整个能源比重的20％到25％。工业发达国家利用液化气能源的比重已远超过50％，中国亦已上升到10％，并在进一步快速增长的过程中。目前，世界气体能源消费的年增长率已高于石油、煤的需求增长率，其海运量也在逐年增长。
液化气运输船主要用于运输液化石油气(LPG)、石化产品(乙烷、丁烷、乙烯、氯乙烯单体等)、化学品气体和液氨等气体能源。由于世界气体能源消费和气体化工原料需求呈持续上升趋势，这给液化气船带来很大的发展机遇，在此国际形势下，各船舶设计单位都增大了对液化气船的研发力度。
根据国际海事组织(IMO)对船舶硫排放限制的要求，船用双燃料技术的发展也日益迅速，针对LPG双燃料的技术也由MAN开发成功并取得船级社的形式认可，已完成其经济可行性和成本有效性研究，目前已在某船厂实船上得到应用。
随着双燃料技术的发展，液化气运输船本身运载的货物可以作为燃料来为船舶提供航行动力，既方便又清洁。但常规的液化气运输船通常是以增加甲板罐的方式来利用货物燃料，这样需要在甲板上放置甲板罐，增加相应的液货管路及配套舾装件，会增加较大的成本；同时，甲板罐及其设施位置很高，会影响船舶盲区，其较高的重心也不利于船舶的稳性。因此，目前亟需一种新形式的液化气运输船。
发明内容
针对上述缺陷，本发明提供了一种结构安全简单，同时可以利用自身运载货物作为燃料的液化气运输船。
本发明提供了一种液化气运输船，包括设置在船体内的液罐，在所述液罐的顶部设有用于释放压力的气室，所述液罐内沿液罐的宽度方向设有横舱壁，沿液罐的长度方向设有纵舱壁，所述横舱壁和纵舱壁垂直设置，将所述液罐划分为至少三个液罐区域，即至少一个燃料 区和两个液货区，所述燃料区和两个液货区的顶部均与气室相连通。
优选地，所述气室位于横舱壁和纵舱壁连接位置的正上方。
优选地，所述横舱壁和纵舱壁呈十字形设置，将所述液罐划分为两个燃料区和两个液货区，所述两个燃料区和两个液货区的顶部均与气室相连通。
优选地，所述横舱壁和纵舱壁呈T字形设置，所述纵舱壁沿液罐的整个长度延伸，所述横舱壁连接在所述纵舱壁和液罐的一个侧壁之间，将所述液罐划分为一个燃料区和两个液货区。
优选地，所述燃料区的底部设有水平舱壁，其中一个液货区延伸至所述水平舱壁的下方。
优选地，所述横舱壁和纵舱壁呈T字形设置，所述横舱壁沿液罐的整个宽度延伸，所述纵舱壁连接在所述横舱壁和液罐的一个端壁之间，将所述液罐划分为一个燃料区和两个液货区。
优选地，所述液罐的底部设有集液槽，所述集液槽位于所述气室的正下方。
优选地，所述集液槽位于横舱壁和纵舱壁连接位置的正下方。
本发明的有益之处在于，通过在液罐内设置横舱壁和纵舱壁，将液罐划分成至少一个燃料区和两个液货区，将用作燃料的货物独立存放在燃料区中，能有效利用液化气船运载的货物，节省了增加甲板罐及相应液货管路的成本；同时，可以保证其他液货区满载航行，使得液货区内不会出现自由液面，稳性更好；而且，本发明的燃料区比首尾燃油舱更接近船中，使用的过程中船舶吃水变化不大，能够保持更好的浮态稳定性。
附图说明
图1是实施例一的三向示意图；
图2是实施例二的三向示意图；
图3是实施例三的三向示意图；
图4是实施例四的三向示意图。
元件标号说明：
1   船体
2   气室
3   液罐
31  集液槽
311  第一集液槽
312  第二集液槽
41   横舱壁
42   纵舱壁
43   水平舱壁
5    燃料区
6    液货区
具体实施方式
下面结合附图对本发明的具体实施方式作进一步详细说明。这些实施方式仅用于说明本发明，而并非对本发明的限制。
在本发明的描述中，需要说明的是，术语“纵向”、“横向”、“上”、“下”、“前”、“后”、“水平”、“顶”、“底”、“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本发明中的具体含义。
如图1-4所示，本发明提供了一种液化气运输船，该液化气运输船包括设置在船体1内的液罐3，液罐3的顶部设有用于释放压力的气室2，气室2位于液罐3长度方向上的中线上，从船体1的露天甲板上伸出，主要供液罐3中的管道和液货泵等设备进出，并储存因周围环境温度变化而气化的气体。为了便于利用液化气运输船中的运载货物作为燃料，液罐3内沿液罐的宽度方向设有横舱壁41，沿液罐的长度方向设有纵舱壁42，横舱壁41和纵舱壁42垂直设置，将液罐3划分为至少三个液罐区域，包括至少一个燃料区5和两个液货区6，燃料区5和两个液货区6的顶部均与气室2相连通。优选地，气室2位于横舱壁41和纵舱壁42连接位置的正上方，在不改变液罐3形状的情况下，使得各区域可以共用同一个气室2，既节省了甲板的布置空间，又节省了液罐及液货系统的制造成本。此外，由于船舶在海上航行 过程中肯定会遇到风浪，船体1会在波浪中产生六个自由度的运动，考虑到船舶本身的形状特性，对船舶稳性影响最大的是横摇。当运输船在不同港口装卸货物后，液罐3内会出现部分装载的情况，其内部自由液面越大，液货晃动时越容易造成结构损坏。设置纵舱壁42可以显著减小自由液面，缓解横摇，有效提升船舶稳性。同时，通过横舱壁41和纵舱壁42划分出独立的燃料区5，可以在航行过程中保证其他液货区6满载航行，使得液货区6内不会出现自由液面，船舶稳性更好。
在本发明的具体实施中，液罐3的底部设有集液槽31，集液槽31可以防止卸货时低温液货在液罐3的底部分散，使得液罐3底部残留的低温液货回流并集中，并且可以将液货泵的吸口尽可能地布置在液罐3底部。具体地，集液槽31位于气室2的正下方，优选地位于横舱壁41和纵舱壁42连接位置的正下方，这样设置能够方便液货泵直进直出，不用布置弯曲管路连接过渡，既具有更好的抽取效果，又能够实现点对点集中布置，节省空间，便于加工和后期维护，节约相关舾装件成本。
本发明根据液化气运输船大小的不同，设计了四种液罐3的布置形式。
实施例一
针对小型液化气运输船，如图1所示，根据续航力的需求，横舱壁41沿液罐3的整个宽度延伸，纵舱壁42沿液罐3的整个长度延伸，并位于液罐3的中线上，从俯视角度看，两者呈十字形设置，将液罐3划分为两个燃料区5和两个液货区6，两个燃料区5即可满足小型液化气运输船的续航力需要。气室2位于横舱壁41和纵舱壁42交叉位置的正上方，两个燃料区5和两个液货区6的顶部均与气室2相连通。在液罐3的底部、气室2的正下方还设有一个位于横舱壁41和纵舱壁42交叉位置的集液槽31。横舱壁41在集液槽31处延伸至集液槽31的底部，可以将从燃料区5和液货区6进入集液槽31中的液货分隔开，避免混合。
实施例二
针对中型液化气运输船，如图2所示，根据续航力的需求，横舱壁41连接在纵舱壁42和液罐3的一个侧壁之间，纵舱壁42沿液罐3的整个长度延伸并位于液罐3的中线上，从俯视角度看，两者呈T字形设置，将液罐3划分为一个燃料区5和两个液货区6。气室2位于横舱壁41和纵舱壁42连接位置的正上方，一个燃料区5和两个液货区6的顶部均与气室2相连通。在液罐3的底部、气室2的正下方还设有一个位于横舱壁41和纵舱壁42交叉位置的集液槽31，横舱壁41和纵舱壁42均在集液槽31处延伸至集液槽31的底部，可以将从燃 料区5和液货区6进入集液槽31中的液货分隔开，避免混合。
实施例三
针对大型液化气运输船，如图3所示，根据续航力的需求，横舱壁41连接在纵舱壁42和液罐3的一个侧壁之间，纵舱壁42沿液罐3的整个长度延伸并位于液罐3的中线上，从俯视角度看，横舱壁41和纵舱壁42呈T字形设置，将液罐3划分为一个燃料区5和两个液货区6，燃料区5的底部设有水平舱壁43，其中一个液货区6延伸至水平舱壁43的下方。气室2位于横舱壁41和纵舱壁42连接位置的正上方，一个燃料区5和两个液货区6的顶部均与气室2相连通。在燃料区5的底部设有第一集液槽311，在液罐3的底部、气室2的正下方还设有一个第二集液槽312，两个液货区6均与第二集液槽312相连通。
实施例四
针对超大型液化气运输船，如图4所示，根据超长航程续航力和船舶稳性的需求，横舱壁41沿液罐3的整个宽度延伸，纵舱壁42连接在横舱壁41和液罐3的一个端壁之间，并位于液罐3的中线上，从俯视角度看，两者呈T字形设置，将液罐3划分为一个燃料区5和两个液货区6。气室2位于横舱壁41和纵舱壁42连接位置的正上方，一个燃料区5和两个液货区6的顶部均与气室2相连通。在液罐3的底部、气室2的正下方设有一个集液槽31，横舱壁41在集液槽31处延伸至集液槽31的底部，可以将从燃料区5和液货区6进入集液槽31中的液货分隔开，避免混合。
以上所述仅是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明技术原理的前提下，还可以做出若干改进和替换，这些改进和替换也应视为本发明的保护范围。

Claims (8)

  1. 一种液化气运输船，包括设置在船体(1)内的液罐(3)，在所述液罐(3)的顶部设有用于释放压力的气室(2)，其特征在于，所述液罐(3)内沿液罐的宽度方向设有横舱壁(41)，沿液罐的长度方向设有纵舱壁(42)，所述横舱壁(41)和纵舱壁(42)垂直设置，将所述液罐(3)划分为至少三个液罐区域，即至少一个燃料区(5)和两个液货区(6)，所述燃料区(5)和两个液货区(6)的顶部均与气室(2)相连通。
  2. 根据权利要求1所述的液化气运输船，其特征在于，所述气室(2)位于横舱壁(41)和纵舱壁(42)连接位置的正上方。
  3. 根据权利要求2所述的液化气运输船，其特征在于，所述横舱壁(41)和纵舱壁(42)呈十字形设置，将所述液罐(3)划分为两个燃料区(5)和两个液货区(6)，所述两个燃料区(5)和两个液货区(6)的顶部均与气室(2)相连通。
  4. 根据权利要求2所述的液化气运输船，其特征在于，所述横舱壁(41)和纵舱壁(42)呈T字形设置，所述纵舱壁(42)沿液罐的整个长度延伸，所述横舱壁(41)连接在所述纵舱壁(42)和液罐(3)的一个侧壁之间，将所述液罐(3)划分为一个燃料区(5)和两个液货区(6)。
  5. 根据权利要求4所述的液化气运输船，其特征在于，所述燃料区(5)的底部设有水平舱壁(43)，其中一个液货区(6)延伸至所述水平舱壁(43)的下方。
  6. 根据权利要求2所述的液化气运输船，其特征在于，所述横舱壁(41)和纵舱壁(42)呈T字形设置，所述横舱壁(41)沿液罐的整个宽度延伸，所述纵舱壁(42)连接在所述横舱壁(41)和液罐(3)的一个端壁之间，将所述液罐(3)划分为一个燃料区(5)和两个液货区(6)。
  7. 根据权利要求1所述的液化气运输船，其特征在于，所述液罐(3)的底部设有集液槽(31)，所述集液槽(31)位于所述气室(2)的正下方。
  8. 根据权利要求7所述的液化气运输船，其特征在于，所述集液槽(31)位于横舱壁(41)和纵舱壁(42)连接位置的正下方。
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