CN110789663B - Liquefied natural gas fuel tank arrangement structure of bulk carrier - Google Patents
Liquefied natural gas fuel tank arrangement structure of bulk carrier Download PDFInfo
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- CN110789663B CN110789663B CN201911105958.6A CN201911105958A CN110789663B CN 110789663 B CN110789663 B CN 110789663B CN 201911105958 A CN201911105958 A CN 201911105958A CN 110789663 B CN110789663 B CN 110789663B
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- natural gas
- liquefied natural
- gas fuel
- fuel tank
- reinforcing
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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
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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
- B63B25/14—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid closed pressurised
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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
The invention discloses a liquefied natural gas fuel cabin arrangement structure of a bulk carrier, which comprises a liquefied natural gas fuel cabin, wherein the liquefied natural gas fuel cabin comprises an outer shell and an inner shell, the liquefied natural gas fuel cabin is arranged behind an upper-layer building, the liquefied natural gas fuel cabin is embedded in an upper deck, and the top of the liquefied natural gas fuel cabin is flush with the middle deck of the upper-layer building; the bottom of the liquefied natural gas fuel tank is flush with the platform of the engine room; an outer shell of the liquefied natural gas fuel tank is fixedly provided with an overhanging T-shaped beam; the web of the overhanging T-shaped beam is fixedly connected with the shell, and the web of the overhanging T-shaped beam is flush with the lower deck of the superstructure. The invention effectively solves the structural strength problem of the fuel cabin, can utilize the lower platform of the fuel cabin, has higher utilization rate in the height direction and optimizes the layout of the whole fuel cabin.
Description
Technical Field
The invention relates to the technical field of ships, in particular to a liquefied natural gas fuel tank arrangement structure of a bulk carrier.
Background
The LNG (liquefied natural gas) is used as fuel, so that the environment-friendly requirement of gas emission can be met, and the LNG fuel tank is more and more widely applied to ships at present.
The membrane type LNG bunker is currently mainly used on large container ships, arranged below superstructure. The research on the arrangement of LNG bunker for large container ship propelled by gas turbine (jow, ship engineering, 40 th volume, 2018 supplement 1) introduces: considering the requirement of minimum loss of container positions when the LNG fuel tank is arranged, the LNG fuel tank is reasonably positioned in the ship body; meanwhile, in order to effectively utilize space and solve the actual problem that the LNG fuel tank cannot be boxed under the coverage of the living building, the LNG fuel tank is finally and definitely arranged below the living building.
In the ship specification CN 109178204B (arrangement structure of natural gas high-low pressure integrated gas supply system of large-scale dual-fuel bulk carrier), it is specified that the C-type cabin is partially arranged below the main deck and partially arranged on both sides of the superstructure.
An LNG fuel tank on the existing bulk cargo ship is mainly a C-shaped tank and is arranged on a deck; some adopt the formula of buryying, the below is arranged at cabin upper mounting plate, and whole jar body is arranged in superstructure both sides. After the tank capacity of the LNG fuel tank becomes large, the LNG fuel tank is increasingly difficult to arrange, and inconvenience is brought to the overall design layout of the ship type.
The existing film type LNG fuel tank structure is applied to a bulk cargo ship, is arranged below a deck, faces limited space of a cabin, has more equipment and is difficult to arrange an LNG fuel tank; the fuel tank is arranged above the deck, is similar to a cantilever beam, is only welded with the upper deck at the bottom and has three suspended sides without hull structure support, the structural strength is weak and the safety is not enough.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a bulk carrier liquefied natural gas fuel tank arrangement structure.
The invention solves the technical problems through the following technical scheme:
a liquefied natural gas fuel tank arrangement structure of a bulk carrier comprises an liquefied natural gas fuel tank, wherein the liquefied natural gas fuel tank comprises an outer shell and an inner shell, and is characterized in that the liquefied natural gas fuel tank is arranged behind an upper-layer building and embedded on an upper deck, and the top of the liquefied natural gas fuel tank is flush with the middle deck of the upper-layer building; the bottom of the liquefied natural gas fuel tank is flush with the platform of the engine room; an outer shell of the liquefied natural gas fuel tank is fixedly provided with an overhanging T-shaped beam; the web of the overhanging T-shaped beam is fixedly connected with the shell, and the web of the overhanging T-shaped beam is flush with the lower deck of the superstructure.
Preferably, the overhanging T-beams are distributed continuously over the left, rear and right side walls of the housing.
Preferably, an anti-tilt bracket is fixedly arranged between the overhanging T-shaped beam and the shell, and the anti-tilt bracket is positioned below the overhanging T-shaped beam.
Preferably, a reinforcing toggle plate is fixedly arranged between the overhanging T-shaped beam and a lower deck of the superstructure; the reinforced toggle plates are horizontally distributed and are flush with the web plate of the outwards extending T-shaped beam.
Preferably, a first reinforcing plate is fixedly arranged between the front end wall of the shell and a lower deck of the superstructure, the first reinforcing plate is flush with a web plate of the outward extending T-shaped beam, and the outward extending T-shaped beam is fixedly connected with the first reinforcing plate.
Preferably, a second reinforcing plate is fixedly arranged between the top of the liquefied natural gas fuel tank and a middle deck of the superstructure.
Preferably, a plurality of first reinforcing frames and a plurality of second reinforcing frames are fixedly arranged between the outer shell and the inner shell, and the first reinforcing frames and the second reinforcing frames are circumferentially distributed along the outer wall of the inner shell; the first reinforcing frame and the second reinforcing frame are parallel to each other.
Preferably, the first reinforcing frame is a plate-shaped member provided with a through hole; the first reinforcing frame takes a midship line as a symmetry center, the top and the bottom of the first reinforcing frame are both of uniform cross-section structures, the top of the inner shell is parallel to the top of the outer shell, and the bottom of the inner shell is parallel to the bottom of the outer shell.
Preferably, the side edge of the first reinforcing frame comprises a first oblique part, a vertical part and a second oblique part which are sequentially connected from top to bottom; the first oblique part is connected to the top of the first reinforcing frame, and the second oblique part is connected to the bottom of the first reinforcing frame; the first inclined parts are distributed from the top of the first reinforcing frame to the outer side of the ship in an inclined downward mode, and the second inclined parts are distributed from the bottom of the first reinforcing frame to the outer side of the ship in an inclined upward mode; the width of the junction of the first oblique portion and the vertical portion is the minimum width of the side edge of the first reinforcing frame, the width of the first oblique portion is gradually increased from bottom to top, the width of the vertical portion is gradually increased from top to bottom, and the width of the second oblique portion is gradually increased from top to bottom.
Preferably, the second reinforcing frame is a bone piece for reinforcing the structure.
The invention has the beneficial effects that: the structure of the invention adopts an embedded arrangement scheme, part of the embedded arrangement scheme is arranged below the upper deck, part of the embedded arrangement scheme is arranged above the upper deck and arranged at the rear end of the superstructure, and part of the deck of the superstructure extends to be connected with the LNG fuel tank to play a role of supporting. In addition, the invention adopts a T-shaped beam fastening structure to effectively support the fuel tank placed on the upper deck. The invention adopts various measures, thus fundamentally solving the problem of insufficient supporting strength of the LNG fuel tank. Compared with the existing film type LNG fuel tank used on a container ship, the invention breaks through the limit condition that the fuel tank is completely supported by a ship body, is applied to the rear end of the bulk cargo ship, adopts an embedded arrangement scheme, and adopts an overhanging T-shaped beam fastening structure, thereby effectively solving the structural strength problem of the LNG fuel tank. Compared with the C-shaped fuel cabin on the existing bulk carrier, the lower platform of the cabin can be utilized in the cabin, the utilization rate of the height direction is higher, and the layout of the whole cabin is more optimized.
Drawings
FIG. 1 is a side view of the preferred embodiment of the present invention.
3 FIG. 32 3 is 3 a 3 schematic 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 in 3 FIG. 31 3. 3
Fig. 3 is a schematic diagram of the upper deck structure according to the preferred embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a first reinforcing frame according to a preferred embodiment of the invention.
Fig. 5 is a schematic structural diagram of a second reinforcing frame according to a preferred embodiment of the invention.
Detailed Description
The present invention will be more clearly and completely described in the following description of preferred embodiments, taken in conjunction with the accompanying drawings.
As shown in fig. 1, 2, 3, 4 and 5, a bulk carrier lng bunker arrangement includes an lng bunker 11.
As shown in fig. 1, the bulk cargo stern mainly comprises an outer hull plate 1, an upper deck plate 2, a front end wall 3 of a cabin, a rear end wall 4 of the cabin, a lower platform 5 of the cabin, an upper platform 6 of the cabin, a front end wall 7 of an superstructure, a rear end wall 8 of the superstructure, a B deck 9 of the superstructure, a D deck 10 of the superstructure, and the like.
The lng bunker 11 is provided behind the superstructure, and the lng bunker 11 includes an outer shell 15 and an inner shell 12.
The liquefied natural gas fuel cabin is embedded in the upper deck and adopts a burying mode. In this embodiment, the lng bunker is arranged about 40% of its height below the upper deck 2.
The inner shell 12 of the liquefied natural gas fuel tank is of a fully closed flat plate structure and supports a cold insulation system of the LNG fuel tank 11.
The shell 15 of the liquefied natural gas fuel cabin is of a fully-closed flat plate structure, and the top of the liquefied natural gas fuel cabin is flush with the middle deck of an upper-layer building. In this embodiment, the middle deck of the superstructure is a superstructure D-deck 10, i.e. the top of the housing 15 is flush with the superstructure D-deck 10.
A second reinforcing plate 22 is fixedly arranged between the top of the liquefied natural gas fuel tank 11 and the middle deck of the superstructure, namely the second reinforcing plate 22 is fixedly arranged between the top D decks 10 of the superstructure on the outer shell 15.
An outer shell 15 of the liquefied natural gas fuel tank is fixedly provided with an overhanging T-shaped beam 13; the web of the overhanging T-beam 13 is fixed to the housing 15, the web of the overhanging T-beam being flush with the lower deck of the superstructure. In this embodiment, the lower deck of the superstructure is a B deck 9 of the superstructure, i.e., the web of the overhanging T-beam is flush with the B deck 9 of the superstructure.
The bottom of the lng bunker 11 is flush with the platform of the nacelle. In this embodiment, the cabin platform is a lower cabin platform 5, that is, the bottom of the outer shell of the lng bunker is flush with the lower cabin platform 5.
The overhanging T-beams 13 are continuously distributed on the left, rear and right side walls of the housing 15. An anti-tilt elbow plate 14 is fixedly arranged between the overhanging T-shaped beam 13 and the shell 15, and the anti-tilt elbow plate is positioned below the overhanging T-shaped beam.
A reinforcing toggle plate 20 is fixedly arranged between the overhanging T-shaped beam 13 and the B deck 9 of the superstructure; the reinforced toggle plates are horizontally distributed and are flush with the web plate of the outwards extending T-shaped beam.
A first reinforcing plate 21 is fixedly arranged between the front end wall of the shell 15 and the B deck 9 of the superstructure, the first reinforcing plate is flush with a web plate of the outward extending T-shaped beam, and the outward extending T-shaped beam is fixedly connected with the first reinforcing plate. The first reinforcing plate 21 is fixedly attached to the rear end wall 8 of the superstructure.
A plurality of first reinforcing frames 16 and a plurality of second reinforcing frames 17 are fixedly arranged between the outer shell 15 and the inner shell 12, and the first reinforcing frames 16 and the second reinforcing frames 17 are distributed along the circumferential direction of the outer wall of the inner shell; the first reinforcing frame and the second reinforcing frame are parallel to each other. The first reinforcing frame and the second reinforcing frame are transversely distributed.
The first reinforcing frame 16 is a plate-shaped member provided with a through hole; the first reinforcing frame is symmetrical about a midship line, the top 31 and the bottom 32 of the first reinforcing frame are of uniform cross-sectional structures, the top of the inner shell 12 is parallel to the top of the outer shell 15, and the bottom of the inner shell is parallel to the bottom of the outer shell.
The side edge of the first reinforcing frame comprises a first inclined part 41, a vertical part 40 and a second inclined part 42 which are sequentially connected from top to bottom; the first diagonal portion 41 is connected to the top portion 31 of the first reinforcing frame, and the second diagonal portion 42 is connected to the bottom portion 32 of the first reinforcing frame.
The first diagonal portion 41 is distributed diagonally downward from the top of the first reinforcing frame toward the outside of the vessel, and the second diagonal portion 42 is distributed diagonally upward from the bottom of the first reinforcing frame toward the outside of the vessel.
The side edge of the first reinforcing frame adopts a variable cross section mode. The width of the joint of the first oblique portion 41 and the vertical portion 40 is the minimum width of the side edge of the first reinforcing frame, the width of the first oblique portion 41 gradually increases from bottom to top, the width of the vertical portion 40 gradually increases from top to bottom, and the width of the second oblique portion 42 gradually increases from top to bottom.
The second reinforcing frame 17 is a bone member for reinforcing the structure. The second reinforcing frame 17 is in a transverse framework type and is respectively supported by a non-watertight platform 19. The non-watertight platform 19 is of uniform cross-section in both horizontal and longitudinal directions. The aggregate parts and the non-watertight platform structure of the second reinforcing frame are common reinforcing members for ships, and are not described herein again.
The structure of the invention adopts an embedded arrangement scheme, part of the embedded arrangement scheme is arranged below the upper deck, part of the embedded arrangement scheme is arranged above the upper deck and arranged at the rear end of the superstructure, and part of the deck of the superstructure extends to be connected with the LNG fuel tank to play a role of supporting. In addition, the invention adopts a T-shaped beam fastening structure to effectively support the fuel tank placed on the upper deck. The invention adopts various measures, thus fundamentally solving the problem of insufficient supporting strength of the LNG fuel tank.
The invention can solve the obstacle of applying the film type LNG fuel tank to the large bulk carrier, and makes a contribution to the popularization and application of the LNG fuel. The technical scheme of the invention solves the contradiction that the large-scale C-shaped cabin occupies a large space and is inconvenient for the arrangement of upper-layer buildings.
The invention has the following advantages:
(1) compared with the existing film type LNG fuel tank used on a container ship, the invention breaks through the limit condition that the fuel tank is completely supported by a ship body, is applied to the rear end of the bulk cargo ship, adopts an embedded arrangement scheme, and adopts an overhanging T-shaped beam fastening structure, thereby effectively solving the structural strength problem of the LNG fuel tank.
(2) Compared with the C-shaped fuel cabin on the existing bulk carrier, the lower platform of the cabin can be utilized in the cabin, the utilization rate of the height direction is higher, and the layout of the whole cabin is more optimized.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (7)
1. A liquefied natural gas fuel tank arrangement structure of a bulk carrier comprises an liquefied natural gas fuel tank, wherein the liquefied natural gas fuel tank comprises an outer shell and an inner shell, and is characterized in that the liquefied natural gas fuel tank is arranged behind an upper-layer building and embedded on an upper deck, and the top of the liquefied natural gas fuel tank is flush with the middle deck of the upper-layer building; the bottom of the liquefied natural gas fuel tank is flush with the platform of the engine room; an outer shell of the liquefied natural gas fuel tank is fixedly provided with an overhanging T-shaped beam; the web plate of the overhanging T-shaped beam is fixedly connected to the shell, and the web plate of the overhanging T-shaped beam is flush with the lower deck of the superstructure; a plurality of first reinforcing frames and a plurality of second reinforcing frames are fixedly arranged between the outer shell and the inner shell, and are circumferentially distributed along the outer wall of the inner shell; the first reinforcing frame and the second reinforcing frame are parallel to each other; the first reinforcing frame is a plate-shaped component provided with a through hole; the first reinforcing frame takes a midship line as a symmetry center, the top and the bottom of the first reinforcing frame are both of uniform cross-section structures, the top of the inner shell is parallel to the top of the outer shell, and the bottom of the inner shell is parallel to the bottom of the outer shell; the side edge of the first reinforcing frame comprises a first inclined part, a vertical part and a second inclined part which are sequentially connected from top to bottom; the first oblique part is connected to the top of the first reinforcing frame, and the second oblique part is connected to the bottom of the first reinforcing frame; the first inclined parts are distributed from the top of the first reinforcing frame to the outer side of the ship in an inclined downward mode, and the second inclined parts are distributed from the bottom of the first reinforcing frame to the outer side of the ship in an inclined upward mode; the width of the junction of the first oblique portion and the vertical portion is the minimum width of the side edge of the first reinforcing frame, the width of the first oblique portion is gradually increased from bottom to top, the width of the vertical portion is gradually increased from top to bottom, and the width of the second oblique portion is gradually increased from top to bottom.
2. The bulk carrier lng bunker arrangement of claim 1, wherein the overhanging T-beams are distributed continuously across the left side wall, the rear end wall, and the right side wall of the outer shell.
3. The arrangement of the lng bunker of a bulk carrier as recited in claim 1, wherein an anti-roll knee is fixedly disposed between the overhanging T-beam and the outer shell, the anti-roll knee being located below the overhanging T-beam.
4. The arrangement structure of liquefied natural gas fuel tanks of bulk carriers according to claim 1, wherein a reinforcing bracket is fixedly arranged between the overhanging T-shaped beam and a lower deck of the superstructure; the reinforced toggle plates are horizontally distributed and are flush with the web plate of the outwards extending T-shaped beam.
5. The arrangement structure of liquefied natural gas fuel tank of bulk carrier as claimed in claim 1, wherein a first reinforcing plate is fixed between the front end wall of the outer shell and the lower deck of the superstructure, the first reinforcing plate is flush with the web of the T-shaped beam, and the T-shaped beam is fixedly connected with the first reinforcing plate.
6. The arrangement structure of the lng bunker of bulk carrier of claim 1, wherein a second reinforcing plate is fixedly installed between the top of the lng bunker and the middle deck of the superstructure.
7. The bulk carrier lng-fuel tank arrangement as recited in claim 1, wherein the second reinforcing frame is a skeletal member for reinforcing the structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911105958.6A CN110789663B (en) | 2019-11-13 | 2019-11-13 | Liquefied natural gas fuel tank arrangement structure of bulk carrier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911105958.6A CN110789663B (en) | 2019-11-13 | 2019-11-13 | Liquefied natural gas fuel tank arrangement structure of bulk carrier |
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| Publication Number | Publication Date |
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| CN110789663A CN110789663A (en) | 2020-02-14 |
| CN110789663B true CN110789663B (en) | 2021-02-09 |
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| CN201911105958.6A Active CN110789663B (en) | 2019-11-13 | 2019-11-13 | Liquefied natural gas fuel tank arrangement structure of bulk carrier |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112193361B (en) * | 2020-12-10 | 2021-05-28 | 沪东中华造船(集团)有限公司 | Container ship and large-capacity gas fuel cabin arrangement structure thereof |
| CN113428288B (en) * | 2021-07-21 | 2022-05-17 | 上海外高桥造船有限公司 | Ship cabin structure and design method thereof |
| CN113428293B (en) * | 2021-07-21 | 2022-08-30 | 上海外高桥造船有限公司 | Oil tanker cabin arrangement system |
| CN113443076A (en) * | 2021-07-21 | 2021-09-28 | 上海外高桥造船有限公司 | Bulk cargo ship |
| FR3130739A1 (en) | 2021-12-22 | 2023-06-23 | Gaztransport Et Technigaz | Ship comprising a castle and a tank for the storage of liquefied gas behind the castle |
| CN114604355A (en) * | 2022-03-14 | 2022-06-10 | 江苏科技大学 | Cargo transport ship with LNG (liquefied natural gas) fuel tank |
| JP2023157599A (en) * | 2022-04-15 | 2023-10-26 | 三菱造船株式会社 | ship |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201834200U (en) * | 2010-07-23 | 2011-05-18 | 江苏现代造船技术有限公司 | LNG device of diesel oil-LNG dual-fuel inland river dry-cargo ship |
| CN202911944U (en) * | 2012-11-15 | 2013-05-01 | 中集船舶海洋工程设计研究院有限公司 | Double-fuel ship |
| CN103640683A (en) * | 2013-12-06 | 2014-03-19 | 江苏现代造船技术有限公司 | Electric propulsion dry cargo carrier using single fuel gas generator set |
| CN104044697A (en) * | 2014-06-09 | 2014-09-17 | 山东航宇船业集团有限公司 | Gas storage tank bearing device for LNG (liquefied natural gas) single-fuel ship |
| CN104015913B (en) * | 2014-06-09 | 2016-08-31 | 山东航宇船业集团有限公司 | A kind of LNG mono-fuel boats and ships |
| JP6002813B1 (en) * | 2015-05-29 | 2016-10-05 | 株式会社大島造船所 | Ship |
| WO2019146087A1 (en) * | 2018-01-26 | 2019-08-01 | 株式会社大島造船所 | Lng fuel module for ship and ship equipped with lng fuel module |
| CN109178204B (en) * | 2018-09-12 | 2019-09-06 | 上海外高桥造船有限公司 | The arragement construction of large-scale double fuel bulk freighter natural gas high-low pressure integrated gas supply system |
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