CN1910079A - A lng-carrier with spherical tanks and double bottom - Google Patents

A lng-carrier with spherical tanks and double bottom Download PDF

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Publication number
CN1910079A
CN1910079A CNA2005800026208A CN200580002620A CN1910079A CN 1910079 A CN1910079 A CN 1910079A CN A2005800026208 A CNA2005800026208 A CN A2005800026208A CN 200580002620 A CN200580002620 A CN 200580002620A CN 1910079 A CN1910079 A CN 1910079A
Authority
CN
China
Prior art keywords
carrier
cavity
double bottom
space
interior end
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CNA2005800026208A
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Chinese (zh)
Other versions
CN1910079B (en
Inventor
P·H·克里斯滕森
L·桑内斯
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Moss Maritime AS
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Moss Maritime AS
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Publication date
Application filed by Moss Maritime AS filed Critical Moss Maritime AS
Publication of CN1910079A publication Critical patent/CN1910079A/en
Application granted granted Critical
Publication of CN1910079B publication Critical patent/CN1910079B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/62—Double bottoms; Tank tops
    • 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
    • B63B2025/087—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid comprising self-contained tanks installed in the ship structure as separate units

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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

A carrier arranged with at least one cargo tank preferably spherical or near spherical, for transporting liquefied gas preferably liquefied natural gas (LNG). The carrier has an outer bottom (4) and a inner bottom (3) defining a double bottom and a number of hollows (5) are provided in the inner bottom (3) and spaced in the longitudinal direction of the carrier. Each hollow is designed to accomodate a portion of each cargo tank, and wherein the distance from the inner bottom to the neutral axis of the carrier constitutes about 25 % (15-30 %) of the distance from the outer bottom to the maindeck.

Description

A kind of Double bottom liquified natural gas carrier (LNGC) with spherical tank
Technical field
The present invention relates to a kind of liquefied natural gas (LNG) carrier according to claim 1 preamble.
Background technology
Below, the ship of conveying liquified natural gas (LNG) is called carrier or LNG carrier.Those of ordinary skill understands, this expression of carrier should be equal to and is interpreted as naval vessel, ship etc.
Fluid ton is commonly used to describe the size of ship, for example the LNG carrier.The tonnage of ship is to calculate according to hull total enclosed volume and the most of effectively separation of ship.When at the harbour with when passing canal computational costs and travelling tax, need utilize the tonnage of ship.Because sea-freight all over the world has various rule and practices, the method for therefore calculating ships tonnage is also different with the difference of official.
The independent method that is used to calculate ships tonnage is very important for special vessel, for example, when definite financial tariff when allowing ship pass through the canal.Because Suez Canal official has formulated a kind of adhoc approach that calculates ships tonnage, this is particularly like this for entering as the ship in the Suez Canal.According to this method, if ship is constructed to the structure with Double bottom, the computed volume of ship can reduce.When making in this way, and when comprising certain Double bottom in the design of ship, can reduce by the total volume of ship deducting the ship feature tonnage that the volume of Double bottom defines.
Ship can select not enter the inlet in the Suez Canal, walks around Africa but trudge, thereby has increased total duration of voyage and ship operating cost.
These special stipulation in Suez have caused the construction of novel LNG carrier, and this novel LNG carrier is particularly suitable for reaching the needs of Suez about ship calculated tonnage regulation.Also brought a kind of Double bottom of abundant definition, this Double bottom structure obviously can be accepted within the regulation of Double bottom definition, and can reach the requirement of the secure context of the Double bottom that official sets.Yet Double bottom must be suitable for guaranteeing the carrier of carrier stowage capacity.
Summary of the invention
The purpose of this invention is to provide a kind of LNG carrier, wherein, weighed for the demand of the clearly Double bottom of definition that helps to reduce the ship fluid ton with for the demand that sufficient intensity is provided for carrier and is suitable for supporting the Double bottom of LNG cargo tank.
From simple commerce or economic point of view, need provide a kind of LNG carrier of finance tariff when having most probable Double bottom and passing the canal with reduction.But this needs must be weighed in the needs for the stable hull structure with enough compartments, sufficient intensity.
Purpose of the present invention realizes that by the carrier according to claim 1 wherein, these aforesaid demands are all weighed.
According to the present invention, carrier has the cargo tank that at least one transport liquefied gases is preferably liquefied natural gas (LNG).Preferably, this carrier has the cargo tank of a plurality of spheries or subglobular.This carrier design has the outer bottom and the interior end that forms Double bottom.Have a plurality of cavities (hollow), and described cavity is spaced at the axial direction of carrier, wherein, each cavity design is in order to hold the bottom of each cargo tank at interior the end.Distance from the interior end to the carrier axis accounts for about 25% of distance (degree of depth of ship (vessel)) from the outer bottom to the main deck.Distance from the interior end to the axis can change, thereby this percentum can change between 15%-30%.
Preferably, carrier has the side jar that is used for ballace, and the side jar separates with Double bottom, and is supported on the Double bottom top of each axial sides of carrier.Space between the interior end and outer bottom (Double bottom) is an osed top, and is preferably empty or is used for ballace.In a preferred embodiment of the present invention, axial bulkhead is port space, intermediate space and right string space with the space segmentation of Double bottom.
Carrier has skirt section (skirt), is used to support cargo tank.The skirt section is connected to the cargo tank and the interior end.
Each cavity be osed top with the space between the end in guaranteeing and the outer bottom, and each cavity is deep in the space of Double bottom for the structure at the end in being arranged in.
Each empty horizontal section changes with the degree of depth in cavity.Even so, the surface at the interior end is greater than the aggregate surface of the empty horizontal section that is positioned at end horizontal surface.In a preferred implementation in cavity, successively decrease to the bottom in cavity in the horizontal section in cavity.The cavity can be hemispherical dome structure, perhaps half polygonized structure, and the horizontal section in cavity can be octagon, polygon, circle etc.
Description of drawings
Below, be described in detail with reference to the attached drawings an embodiment of the preferred embodiment for the present invention, wherein:
Fig. 1 is the transparent view of new carrier Double bottom structure.
Fig. 2 is the cross sectional drawing of new carrier in the middle of the cavity.
Fig. 3 is the cross sectional drawing according to existing design-calculated carrier.
Fig. 4 is the transparent view according to existing design-calculated carrier bottom.
The specific embodiment
Carrier shown in Fig. 1 and Fig. 2 is a kind of novel LNG carrier 1, and design has Double bottom 2, and this Double bottom was made of the interior end 3 and outer bottom 4.Carriers main deck is by 23 expressions.The interior end 3, have a plurality of empty 5, and the quantity in cavity 5 is corresponding to the quantity that is arranged in the cargo tank 6 on the LNG carrier 1.LNG carrier 1 also has skirt section 7, to support cargo tank.
5 horizontal section, cavity can be with the degree of depth in cavity the shape and size in change level cross section.As seen, the surface at the interior end 3 is greater than the aggregate surface of the horizontal section in each cavity 5 in Fig. 1.The horizontal section in the cavity 5 of the ends 3 horizontal surface is shown as octagon in being in.Each cavity 5 is arranged at interior the end 3, with the space between the deeply interior end 3 and the outer bottom 4.In being combined in, cavity 5, keeps sealing with the space between the end in guaranteeing and the outer bottom at the end 3.
The part at the end 3 in cavity 5 can be designed to is perhaps for being connected to the absolute construction at the interior end 3.As long as each cavity 5 energy holding portion cargo tank 6, the shape in cavity 5 can change to some extent.In Fig. 1, each cavity 5 comprises a plurality of surfaces that have a down dip to the center in outer bottom 4 and cavity 5.The ends 3 horizontal location in the bottom in cavity 5 is parallel to.
The novel invention design of LNG carrier as depicted in figs. 1 and 2 will be described below, and make comparisons with existing design as shown in Figure 3 and Figure 4.
Existing design-calculated LNG carrier shown in cross-sectional plane among Fig. 3 comprises shell 9 and inner casing 8.The shape of inner casing 8 is used to hold the bottom of cargo tank 22.Structure 8a is that rectangle is to form the support of goods jar.Described shell is divided into independent space or compartment by axial bulkhead 10,11 and transverse box 12, sees Fig. 4. Space 13a, 13b are as the side that is used for ballast water dark jar (side deep tank), and space 13c is the tunnel that is used for pipeline.The skirt section 21 that is used to support cargo tank is connected to the platform that forms as one with the side jar.
Be according to LNG carrier of the present invention shown in Fig. 2.Double bottom 2 was made of the interior end 3 and outer bottom 4, and was furnished with the cavity 5 that is used to hold cargo tank 6 bottoms in the interior end 3.Each cavity 5 is by inclined element 5a and horizontal cell 5b structure.Axially bulkhead 14,15 is port space 16, intermediate space 17 and starboard space 18 with the separated by spaces of Double bottom.The end 3 in the side jar 19,20 that is used for ballast water is arranged in, and the skirt section 7 that is used to support cargo tank be connected in the end 3.
When the structure of LNG transportation shell of the present invention among the structure of comparison diagram 3 mesochites and Fig. 2, it is evident that for those of ordinary skills, LNG carrier among Fig. 3 is not configured with Double bottom, and LNG carrier of the present invention has the Double bottom that clearly limits among Fig. 2.In Fig. 3, the jar 13a, the 13b that are used for ballast water are so-called water tank, and each jar filling is positioned at the segment space of LNG carrier bottom and sidepiece.And in Fig. 2, Double bottom 2 is separated by the interior end 3 and the space 19,20 of LNG carrier sidepiece.Be positioned at sidepiece space 19,20 act as the jar that is used for ballast water, the space 16,17,18 of Double bottom can be used for ballast water or is empty space simultaneously.
In Fig. 3, the structure 8a at water tank top is a rectangle, to form the support of cargo tank, as shown in Figure 4.The interior end 3 of novel LNG carrier, be provided with the cavity that is used to hold cargo tank 6 among Fig. 2, and the surface at the interior like this end 3 is greater than the aggregate surface of each empty horizontal section.This ratio is not practicable for the top of water tank, sees Fig. 4, and wherein outshot is that rectangle is to hold the bottom of cargo tank 22.This structure is as Double bottom and inapplicable.
In Fig. 2 and Fig. 3, the axis is represented by NA.For making the minimum deviation of the bottom of supporting the skirt section, the interior end 3, should be near the location, axis.When the distance of the axis NA from the interior end 3 to carrier accounts for from outer bottom 4 to main deck the about 25% time of 23 distance, the present invention realizes two aspects of the object of the invention; Carrier and cargo tank support has enough intensity, and clearly defines Double bottom, and satisfies the requirement of the secure context of the stipulative definition of Double bottom and setting.In addition, be apparent that, when the tonnage that calculates carrier when for example entering the Suez Canal, deduct the capacity of Double bottom.

Claims (9)

1. one kind has the carrier that at least one is preferably the cargo tank of sphere or subglobular, this carrier is used for transport liquefied gases, be preferably liquefied natural gas, wherein, described carrier has the interior end and the outer bottom that forms Double bottom, in the interior end, have a plurality of cavities, arrange along the axially spaced-apart of carrier in this cavity, wherein, each cavity is used to hold the part of each cargo tank, and wherein the distance from the interior end to the carrier axis accounts for about 25% (15%-30%) of the distance from the outer bottom to the main deck.
2. carrier according to claim 1, wherein, the side jar and the Double bottom that are preferred for ballace are separated, and are supported in the top of Double bottom.
3. carrier according to claim 1 and 2, wherein, the skirt section that is used to support cargo tank is connected to the interior end of Double bottom.
4. according to any described carrier in the claim 1 to 3, wherein, the space between the interior end and outer bottom is an osed top, and as slack tank or ballast tanks.
5. according to any described carrier among the claim 1-4, wherein, axially bulkhead is port space, intermediate space and right string space with the separated by spaces of Double bottom.
6. according to any described carrier among the claim 1-5, wherein, each cavity be osed top with the space between the end in guaranteeing and the outer bottom, and each cavity is deep in the space of Double bottom for the structure at the end in being arranged in.
7. according to any described carrier among the claim 1-6, wherein, the horizontal section in cavity changes with the degree of depth in cavity, and the surface at the interior end is greater than the aggregate surface of empty horizontal section.
8. according to any described carrier among the claim 1-7, wherein, the cavity is semisphere or half polygonized structure, and the horizontal section in cavity is octagon, polygon, circle.
9. according to any described carrier among the claim 1-8, wherein, successively decrease to the bottom in cavity in the horizontal section in cavity.
CN2005800026208A 2004-01-28 2005-01-21 A lng-carrier with spherical tanks and double bottom Expired - Fee Related CN1910079B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB0401847.9 2004-01-28
GB0401847A GB2410471B (en) 2004-01-28 2004-01-28 An LNG-carrier with spherical tanks and double bottom
PCT/NO2005/000026 WO2005073069A1 (en) 2004-01-28 2005-01-21 A lng-carrier with spherical tanks and double bottom

Publications (2)

Publication Number Publication Date
CN1910079A true CN1910079A (en) 2007-02-07
CN1910079B CN1910079B (en) 2012-11-28

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EP (1) EP1711395B1 (en)
JP (1) JP4774373B2 (en)
KR (1) KR20060127958A (en)
CN (1) CN1910079B (en)
DE (1) DE602005021457D1 (en)
GB (1) GB2410471B (en)
WO (1) WO2005073069A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102958797A (en) * 2010-09-08 2013-03-06 三菱重工业株式会社 Liquefied gas carrying ship
CN103153775A (en) * 2010-10-18 2013-06-12 大宇造船海洋株式会社 Ship for transporting a liquefied natural gas storage container
CN104787249A (en) * 2015-03-27 2015-07-22 浙江欣海船舶设计研究院有限公司 River-sea transportation double-fuel LNG tank car transport ship
CN105292384A (en) * 2015-11-13 2016-02-03 舟山长宏国际船舶修造有限公司 Anti-freezing liquefied natural gas (LNG) cargo tank ship
CN103153775B (en) * 2010-10-18 2016-11-30 大宇造船海洋株式会社 Ship for conveying liquified natural gas storage vessel
CN114212188A (en) * 2016-12-29 2022-03-22 现代重工业株式会社 Container transport ship propelled by gas fuel

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JP5403900B2 (en) * 2007-11-16 2014-01-29 三菱重工業株式会社 Liquefied gas carrier
CN101665143A (en) * 2008-09-05 2010-03-10 吴植融 Multifunctional offshore bases and quality replacement method for ballast seawater and LNG or LPG and the like
WO2010150126A2 (en) * 2009-06-23 2010-12-29 Thanappuhettige Sunil Somasiri Gomes Technology of ecodesigned spherical for latex handling
CN102322264B (en) * 2011-05-26 2014-07-02 上海交通大学 Gas hydrate exploitation, well completion, collection and conveying platform system
JP2015217749A (en) * 2014-05-15 2015-12-07 川崎重工業株式会社 Ship body support structure of liquefied gas tank, and liquefied gas carrier
JP6554126B2 (en) * 2017-02-21 2019-07-31 株式会社新来島どっく Gas fuel independent tank installation structure of car carrier
CN107776827A (en) * 2017-10-18 2018-03-09 上海新奥新能源技术有限公司 A kind of load-carring transport

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Cited By (9)

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Publication number Priority date Publication date Assignee Title
CN102958797A (en) * 2010-09-08 2013-03-06 三菱重工业株式会社 Liquefied gas carrying ship
CN102958797B (en) * 2010-09-08 2015-11-25 三菱重工业株式会社 Liquefied gas carrier
CN103153775A (en) * 2010-10-18 2013-06-12 大宇造船海洋株式会社 Ship for transporting a liquefied natural gas storage container
CN103153775B (en) * 2010-10-18 2016-11-30 大宇造船海洋株式会社 Ship for conveying liquified natural gas storage vessel
CN104787249A (en) * 2015-03-27 2015-07-22 浙江欣海船舶设计研究院有限公司 River-sea transportation double-fuel LNG tank car transport ship
CN104787249B (en) * 2015-03-27 2017-04-26 浙江欣海船舶设计研究院有限公司 River-sea transportation double-fuel LNG tank car transport ship
CN105292384A (en) * 2015-11-13 2016-02-03 舟山长宏国际船舶修造有限公司 Anti-freezing liquefied natural gas (LNG) cargo tank ship
CN114212188A (en) * 2016-12-29 2022-03-22 现代重工业株式会社 Container transport ship propelled by gas fuel
CN114212188B (en) * 2016-12-29 2024-06-07 现代重工业株式会社 Gas fuel propelling container transport ship

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Publication number Publication date
WO2005073069A1 (en) 2005-08-11
GB2410471A (en) 2005-08-03
EP1711395A1 (en) 2006-10-18
EP1711395B1 (en) 2010-05-26
CN1910079B (en) 2012-11-28
JP2007519572A (en) 2007-07-19
GB2410471B (en) 2007-04-11
DE602005021457D1 (en) 2010-07-08
JP4774373B2 (en) 2011-09-14
GB0401847D0 (en) 2004-03-03
KR20060127958A (en) 2006-12-13

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