CN116279983A - B-type fuel tank arrangement structure and container ship - Google Patents

Abstract

The invention discloses a B-type fuel tank arrangement structure and a container ship, wherein the B-type fuel tank arrangement structure comprises a main ship body, a cargo hold place, a fuel tank place and a B-type fuel tank. The cargo hold is arranged in the main ship body, and the fuel hold is arranged in the main ship body and adjacent to the cargo hold. The B-type fuel tank comprises a body part and a protruding part, wherein the body part is arranged in the fuel tank, and extends from a first shipboard of the main ship to a second shipboard of the main ship along the width direction of the main ship. The protruding portion protrudes from at least a central region in a direction from the first side of the body portion to the second side of the main hull toward the cargo hold along a longitudinal direction of the main hull. The protruding length of the protruding portion occupies the length of N containers at the cargo hold, where N is an integer and N is 0 or more. The invention can increase more cargo loading space, avoid the waste of the container loading space due to the expansion of the B-type fuel cabin, and effectively improve the cargo loading rate of the container ship.

Description

B-type fuel tank arrangement structure and container ship

Technical Field

The invention relates to the technical field of ship construction, in particular to a B-type fuel tank arrangement structure and a container ship.

Background

Liquefied fuels are regarded as transition fuels for achieving zero carbon emissions in the future, and alternative fuels including liquefied natural gas, liquid hydrogen, liquid ammonia, and methanol are expected to play a more important role in the decarbonizing industry in order to achieve the carbon emission target. Some current non-liquefied gas carrier vessels, such as container ships, require a corresponding fuel tank to be located on the ship for storing the relevant fuel that can be used for propulsion and sailing of the ship when using the dual fuel solution. Therefore, how to consider the arrangement of the fuel tanks on the container ship by fully utilizing the effective space, and reduce the cargo loading loss is a problem to be solved urgently by those skilled in the art.

Disclosure of Invention

In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide a B-type fuel tank arrangement structure and a container ship, so as to effectively improve the cargo loading rate of the container ship and the construction efficiency of the ship.

To achieve the above and other related objects, the present invention provides a B-type fuel tank arrangement structure comprising:

a main hull;

the cargo hold is arranged in the main ship body;

the fuel cabin place is arranged in the main ship body and is adjacent to the cargo cabin place;

the B-type fuel cabin is arranged in the fuel cabin, and comprises a body part and a protruding part, wherein the body part extends from a first shipboard of the main ship body to a second shipboard of the main ship body along the width direction of the main ship body; along the length direction of the main hull, the protruding part protrudes from at least the central area of the main body part in the direction from the first side to the second side of the main hull to the cargo hold, and the protruding part is symmetrically distributed relative to a vertical line perpendicular to the line center of the first side to the second side; the protruding length of the protruding portion occupies the length of N containers in the cargo hold, N being an integer and N being greater than or equal to 0.

Optionally, along the width direction of the main hull, a first space is reserved on one side, close to the first ship side, of the protruding portion, a second space is reserved on one side, close to the second ship side, of the protruding portion, and the first space and the second space are equal in size.

Alternatively, the protruding portion is of a rectangular or square shape.

Optionally, a plurality of supporting bulkheads are arranged in the B-type fuel tank, and the supporting bulkheads are parallel along the length direction of the main hull.

Alternatively, each of the support bulkheads is formed in a fluid-tight configuration, with adjacent two of the support bulkheads being spaced apart to form a closed space within the type B fuel tank, or each of the support bulkheads is formed in a non-fluid-tight configuration.

Optionally, each of the support bulkheads is provided with a plurality of through holes, and the support bulkheads formed with the through holes are formed in a non-fluid-tight structure.

Optionally, a plurality of through holes are formed in each supporting bulkhead, a sealing cover is correspondingly arranged on each through hole, and the supporting bulkhead with the sealing cover arranged on the through holes in a sealing mode is formed into a liquid-tight structure.

Optionally, a main deck is arranged on the main hull, the main deck separates the main hull along the height direction of the main hull to form a main hull upper space and a main hull lower space, and the B-type fuel tank and the cargo hold are both arranged in the main hull lower space.

Optionally, the B-type fuel tank is further provided with an air chamber protruding from the main hull lower space through the main deck to the main hull upper space.

Optionally, an isolation empty cabin is further arranged between the fuel cabin place and the cargo cabin place, and a support is arranged between the outer wall of the B-type fuel cabin and the inner wall of the fuel cabin place.

The invention also provides a container ship which comprises the B-type fuel tank arrangement structure.

Compared with the prior art, the arrangement structure of the B-type fuel tank and the container ship have the following beneficial effects:

the B-type fuel tank arrangement structure comprises a main ship body, a cargo tank place, a fuel tank place and a B-type fuel tank. The cargo hold is arranged in the main ship body, and the fuel hold is arranged in the main ship body and adjacent to the cargo hold. The B-type fuel tank comprises a body part and a protruding part, wherein the body part is arranged in the fuel tank, and extends from a first shipboard of the main ship to a second shipboard of the main ship along the width direction of the main ship. Along the length direction of the main hull, the protruding parts protrude from at least the central area of the main hull in the direction from the first side to the second side of the main hull to the cargo hold, and the protruding parts are symmetrically distributed relative to a vertical line perpendicular to the line center of the first side to the second side. The protruding length of the protruding portion occupies the length of N containers in the cargo hold, where N is an integer and N is 0 or more. Therefore, when the B-type fuel tank needs smaller tank capacity, the N value can be set to 0, the B-type fuel tank at the moment can meet the tank capacity requirement without arranging a protruding part protruding to the goods, and meanwhile, the loading space of the goods is not occupied. When the B-type fuel tank needs to be expanded, the capacity of the protruding part of the B-type fuel tank can be expanded by arranging the protruding part of the B-type fuel tank, the protruding part protrudes from the central area of the body part in the direction from the first ship side to the second ship side of the main ship body to the cargo hold, the first space is reserved on one side, close to the first ship side, of the protruding part, along the width direction of the main ship body, a second space is reserved on one side, close to the second ship side, of the protruding part, the sizes of the first space and the second space are equal, and the protruding part can be diffused from the protruding part to the first space and the second space according to the expanded size. Because the first space and the second space are equal to the N container ships in length direction, the containers can still be placed, more cargo loading space is increased, the waste of the container loading space due to the expansion of the B-type fuel cabin is avoided, and the cargo loading rate of the container ship is effectively improved.

Furthermore, the B-type fuel cabin can be synchronously built with the main hull, and the B-type fuel cabin is integrally hoisted into the main hull after the lower part of the main hull has a complete structure, so that the ship building efficiency is effectively improved, and the ship building period is shortened.

Furthermore, the invention provides that a plurality of supporting bulkheads arranged inside the B-type fuel tank can be of a non-liquid-tight structure, so that the dead weight of the fuel tank is reduced, and the manufacturing cost is reduced. The fuel tank can be divided into a plurality of fuel tanks by a liquid-tight structure, the plurality of fuel tanks can be loaded with the same fuel, and also can be loaded with different fuels, so that the flexibility of fuel loading is greatly improved, and the fuel loading conditions can be flexibly combined under the condition of diversification of the current alternative fuels.

Further, the arrangement structure of the B-type fuel tank in the invention effectively reduces the emission of ship pollutants by arranging the B-type fuel tank loading fuel on a ship for transporting non-liquefied gas cargoes, such as a container ship, and the arrangement structure of the B-type fuel tank is arranged in the lower space of the main ship body, fully utilizes the inner space of the main ship body, and can realize the maximum tank capacity of the B-type fuel tank.

Drawings

FIG. 1 is a schematic structural view of a container ship according to an embodiment of the present invention;

FIG. 2 is a schematic illustration of the configuration of the type B fuel pod arrangement of FIG. 1;

FIG. 3a is a top view of a B-mode fuel pod arrangement according to one embodiment of the present invention;

FIG. 3b is a cross-sectional view taken along line A-A of FIG. 3 a;

FIG. 4a is a top view of a B-mode fuel pod arrangement according to another embodiment of the present invention;

FIG. 4B is a cross-sectional view taken along the direction B-B in FIG. 4 a;

FIG. 5a is a schematic view of a structure of a supporting bulkhead according to an embodiment of the invention;

FIG. 5b is a schematic view of a structure of a supporting bulkhead according to another embodiment of the invention;

fig. 5c is a schematic view of a structure of a supporting bulkhead according to another embodiment of the invention.

List of reference numerals:

10. main hull

101. A first ship board

102. Second ship board

11. Main deck

12. Main hull upper space

13. Lower space of main hull

14. Cargo hold place

141. A first space

142. Second space

15. Isolation air cabin

16. Cabin

17. Cargo hold cover

18. Fuel tank department

19 B-type fuel tank

191. Body part

192. Protruding part

193. Supporting bulkhead

1931. Through hole

1932. Sealing cover

194. Air chamber

195. Support seat

20. Container

Detailed Description

Further advantages and effects of the present invention will become apparent to those skilled in the art from the disclosure of the present invention, which is described by the following specific examples. The invention may be practiced or carried out in other embodiments and details within the scope and range of equivalents of the specific embodiments and ranges of equivalents, and modifications and variations may be made in the practice of the invention without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict.

It should be noted that the illustrations provided in the embodiments of the invention are merely schematic illustrations of the basic concepts of the invention, and only the components related to the invention are shown in the illustrations, rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, number and proportion of each component in actual implementation may be arbitrarily changed, and the layout of the components may be more complicated. The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the present disclosure, and should not be construed as limiting the scope of the invention, since any modification, variation in proportions, or adjustment of the structures, proportions, etc. which would otherwise be used by those skilled in the art, should not be construed as limiting the scope of the invention, which is otherwise, used by the claims, without affecting the efficacy of the invention or the objects obtained.

The present embodiment provides a B-mode fuel tank arrangement comprising a main hull 10, a cargo hold site 14, a fuel tank site 18 and a B-mode fuel tank 19, with reference to fig. 1. The cargo hold 14 is disposed within the main hull 10, and the fuel hold 18 is disposed within the main hull 10 adjacent to the cargo hold 14. Referring to fig. 3a or 4a, the b-type fuel tank is provided in the fuel tank site 18 and includes a body portion 191 and a protruding portion 192, the body portion 191 extending from the first side 101 of the main hull 10 to the second side 102 of the main hull 10 in the width direction Y of the main hull 10. Along the longitudinal direction X of the main hull 10, the protruding portions 192 protrude from at least a central region of the body portion 191 in the direction from the first side 101 to the second side 102 toward the cargo space 14, and the protruding portions 192 are symmetrically distributed with respect to a perpendicular line perpendicular to the center of the line connecting the first side 101 to the second side 102. The protruding length L of the protruding portion 192 occupies the length of N containers 20 within the cargo space 14, where N is an integer and N is 0 or more.

Specifically, referring to fig. 1, a main deck 11 is provided on a main hull 10, and the main deck 11 partitions the main hull 10 in a height direction of the main hull 10 to form a main hull upper space 12 and a main hull lower space 13. The cargo hold place 14 is provided in the main hull lower space 13. The main hull headspace 12 and the interior of the cargo hold 14 are used to arrange cargo containers 20. A fuel tank site 18 is provided also in the main hull lower space 13 adjacent to the cargo tank site 14. Referring to fig. 2 or 4b, a cargo hold 17 is provided at the top of the cargo hold 14 to be lifted off, and the cargo hold 17 is lifted off by a quay crane when cargo handling activities are performed.

Referring to fig. 3a or 4a, a B-type fuel tank 19 is provided in the fuel tank site 18, the B-type fuel tank including a body portion 191 and a protruding portion 192. The body portion 191 extends from the first side 101 of the main hull 10 to the second side 102 of the main hull 10 in the width direction of the main hull 10, and the protruding portion 192 protrudes from at least a central region of the body portion 191 in the direction from the first side 101 to the second side 102 of the main hull 10 toward the cargo space 14 in the length direction of the main hull 10, and the protruding length L of the protruding portion 192 occupies the length of N containers in the cargo space 14. In an embodiment, referring to fig. 3a and 3b, the protruding portion 192 protrudes from the central region of the body portion 191 in the direction from the first side 101 to the second side 102 of the main hull 10 toward the cargo space 14, and the protruding length L of the protruding portion 192 occupies the length of N containers within the cargo space 14. In the width direction of the main hull 10, a first space 141 is reserved on the side of the projection 192 close to the first side 101, and a second space 142 is reserved on the side of the projection 192 close to the second side 102, and the first space 141 and the second space 142 are equal in size. Alternatively, the protruding portion 192 is of a rectangular parallelepiped or a square. Thus, when the B-type fuel tank 19 needs to be expanded, it is possible to first protrude at least one container 20 length from the central region of the body of the B-type fuel tank 19 in the direction from the first side 101 to the second side 102 of the main hull 10 toward the cargo hold 14, and to determine the size of the protruding portion 192, the first space 141, or the second space 142 according to the size of the expanded capacity. At this time, since the first space 141 and the second space 142 are equal to the container ship in length direction, the container can still be placed, more cargo loading space is increased, and waste of the container loading space due to expansion of the B-type fuel tank 19 is avoided. In another embodiment, referring to fig. 4a and 4B, the protruding portion 192 protrudes from the first side 101 of the body portion 191 to the second side 102 of the main body boat as a whole toward the cargo compartment 14, and the protruding portion 192 of the B-type fuel compartment 19 and the body portion 191 have the same width, which can be used for loading more fuel. If the protruding length of the protruding portion 192 occupies less than one or N containers within the space of the length of one or N containers in the cargo space 14, the remaining space except for the space occupied by the protruding portion 192 may not be used to hold the containers, which results in the problem of wasting space in the cargo space 14, and the protruding length L of the protruding portion 192 is at least one container length, which can avoid the problem of wasting space in the cargo space 14.

Alternatively, referring to fig. 3a or 4a, a plurality of support bulkheads 193 are provided in the b-type fuel tank 19, the support bulkheads 193 being parallel along the length of the main hull 10. The fuel tank support bulkhead 193 can effectively ensure the structural strength of the B-type fuel tank 19, is also beneficial to the stress transmission of the top and bottom supports 195, and can effectively reduce the sloshing effect when the liquid level in the tank moves left and right. The support bulkhead 193 can be a non-fluid tight structure and the fuel tank is an integral tank, which reduces the dead weight of the fuel tank and reduces manufacturing costs. The support bulkhead 193 can also be a fluid-tight structure to separate the fuel compartments to form a plurality of independent compartments. In one embodiment of the present embodiment, referring to FIG. 5a, each support bulkhead 193 is in a fluid-tight configuration, with adjacent two support bulkheads 193 forming a sealed space within the B-mode fuel tank 19. The support bulkhead 193 of the watertight structure divides the fuel tank into a plurality of fuel tanks, in which case the flexibility of fuel loading can be enhanced, and the plurality of fuel tanks can be loaded with the same fuel or different fuels. In another embodiment of the present embodiment, referring to fig. 5b, the support bulkhead 193 is of a non-fluid tight construction, i.e. a plurality of through holes 1931 are provided in the support bulkhead 193 to reduce the weight of the fuel compartment while supporting the combustion chamber. Alternatively, referring to fig. 5c, sealing caps 1932 corresponding to the through holes 1931 one by one may be further provided on the basis of fig. 5b, and the sealing caps 1932 are provided to convert the supporting bulkhead 193 into a liquid-tight structure. The arrangement can keep two scheme designs when initially constructing, is convenient for switching according to the requirements in the ship operation process, and improves the use flexibility of the fuel cabin. Alternatively, the sealing cap 1932 may be a watertight hatch or a manhole cover.

Referring to fig. 4a, in the width direction of the main hull 10, the first space 141 and the second space 142 on both sides of the protruding portion 192 of the B-type fuel tank 19 may serve as the cargo space 14, and the number or length of the supporting bulkheads 193 in the tank may be reduced due to the shortened width of the protruding portion 192, which is advantageous in reducing the dead weight.

Optionally, referring to fig. 2, 3b or 4b, a support 195 is provided between the outer wall of the b-type fuel compartment 19 and the inner wall of the fuel compartment 18. The support 195 is provided at the top and bottom of the fuel tank site 18 or the B-type fuel tank 19 to support the B-type fuel tank 19. The weight of the B-type fuel tank 19 and the weight of the fuel loaded therein is transferred to the hull structure bulkhead of the fuel tank 18 by the support 195, and the support 195 can restrict the displacement of the B-type fuel tank 19 relative to the hull. The B-type fuel tanks 19 can be constructed in synchronization with the main hull 10, and the B-type fuel tanks 19 are integrally lifted into the main hull 10 after the lower portion of the main hull 10 has a complete structure. The B-type fuel tank 19 is further provided with an air chamber 194, which air chamber 194 protrudes from the main hull lower space 13 through the main deck 11 to the main hull upper space 12. The air chamber 194 of the B-type fuel tank 19 protrudes into the main deck 11 and is arranged at the fuel joint, and the fuel in the B-type fuel tank 19 is pumped by a fuel pump and is delivered via a fuel line to the air consuming equipment in the cabin 16, such as a host, a generator, a boiler, etc.

Referring to fig. 2, an insulating space 15 is provided between the fuel cell site 18 and the cargo compartment site 14 to ensure that cargo handling activities within the cargo compartment site 14 do not affect the strength of the fuel cell site 18. The space capsule 15 is also arranged between the fuel capsule place 18 and the main deck 11, and the space capsule 15 surrounding the periphery of the fuel capsule place 18 can be mutually communicated with the space capsule 15 at the top of the fuel capsule place 18, so that the convenience of the arrival path of the space capsule 15 can be ensured, and a plurality of sets of air pipe systems in the capsule generated by the number of the space capsule 15 can be reduced. A partial sub-shield (not shown) is also arranged between the inner wall of the fuel tank 18 and the outer wall of the B-type fuel tank 19 at the bottom of the B-type fuel tank 19, and the partial sub-shield can bear the leakage of the B-type fuel tank 19, and is usually considered to be capable of bearing the leakage amount of 15 days, so that the fuel tank 18 does not need to bear low temperature and can be designed according to a conventional hull structure.

The present embodiment also provides a container ship comprising a main hull 10, a main deck 11, a nacelle 16, a cargo hold 14, a fuel hold 18, a B-mode fuel hold 19 and a container 20, see fig. 1. The main hull 10 is provided with a main deck 11, and the main deck 11 partitions the main hull 10 along the height direction of the main hull 10 to form a main hull upper space 12 and a main hull lower space 13. The cargo hold place 14 is provided in the main hull lower space 13. A cargo container 20 is disposed within the main hull headspace 12 and cargo hold 14. A nacelle 16 is also provided in the main hull lower space 13. The arrangement of the B-type fuel tanks is the same as that of the B-type fuel tanks in the above-described embodiments, and will not be described here again.

In summary, the B-type fuel tank arrangement of the present invention includes a main hull, a cargo hold, a fuel tank and a B-type fuel tank. The cargo hold is arranged in the main ship body, and the fuel hold is arranged in the main ship body and adjacent to the cargo hold. The B-type fuel tank comprises a body part and a protruding part, wherein the body part is arranged in the fuel tank, and extends from a first shipboard of the main ship to a second shipboard of the main ship along the width direction of the main ship. Along the length direction of the main hull, the protruding parts protrude from at least the central area of the main hull in the direction from the first side to the second side of the main hull to the cargo hold, and the protruding parts are symmetrically distributed relative to a vertical line perpendicular to the line center of the first side to the second side. The protruding length of the protruding portion occupies the length of N containers at the cargo hold, where N is an integer and N is 0 or more. Therefore, when the B-type fuel tank needs smaller tank capacity, the N value can be set to 0, the B-type fuel tank at the moment can meet the tank capacity requirement without arranging a protruding part protruding to the goods, and meanwhile, the loading space of the goods is not occupied. When the B-type fuel tank needs to be expanded, the capacity of the protruding part of the B-type fuel tank can be expanded by arranging the protruding part of the B-type fuel tank, the protruding part protrudes from the central area of the body part in the direction from the first ship side to the second ship side of the main ship body to the cargo hold, the first space is reserved on one side, close to the first ship side, of the protruding part, along the width direction of the main ship body, a second space is reserved on one side, close to the second ship side, of the protruding part, the sizes of the first space and the second space are equal, and the protruding part can be diffused from the protruding part to the first space and the second space according to the expanded size. Because the first space and the second space are equal to the N container ships in length direction, the containers can still be placed, more cargo loading space is increased, the waste of the container loading space due to the expansion of the B-type fuel cabin is avoided, and the cargo loading rate of the container ship is effectively improved.

Furthermore, the B-type fuel cabin can be synchronously built with the main hull, and the B-type fuel cabin is integrally hoisted into the main hull after the lower part of the main hull has a complete structure, so that the ship building efficiency is effectively improved, and the ship building period is shortened.

Furthermore, the invention provides that a plurality of supporting bulkheads arranged inside the B-type fuel tank can be of a non-liquid-tight structure, so that the dead weight of the fuel tank is reduced, and the manufacturing cost is reduced. The fuel tank can be divided into a plurality of fuel tanks by a liquid-tight structure, the plurality of fuel tanks can be loaded with the same fuel, and also can be loaded with different fuels, so that the flexibility of fuel loading is greatly improved, and the fuel loading conditions can be flexibly combined under the condition of diversification of the current alternative fuels.

Further, the arrangement structure of the B-type fuel tank in the invention effectively reduces the emission of ship pollutants by arranging the B-type fuel tank loading fuel on a ship for transporting non-liquefied gas cargoes, such as a container ship, and the arrangement structure of the B-type fuel tank is arranged in the lower space of the main ship body, fully utilizes the inner space of the main ship body, and can realize the maximum tank capacity of the B-type fuel tank.

The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (11)

1. A B-mode fuel pod arrangement comprising:

a main hull;

the cargo hold is arranged in the main ship body;

a fuel tank site disposed within the main hull and adjacent to the cargo tank site;

the B-type fuel cabin is arranged in the fuel cabin, and comprises a body part and a protruding part, wherein the body part extends from a first shipboard of the main ship body to a second shipboard of the main ship body along the width direction of the main ship body; the protruding parts protrude from at least a central area of the main body part in the direction from the first side to the second side to the cargo hold along the length direction of the main hull, and the protruding parts are symmetrically distributed relative to a vertical line perpendicular to the line center of the first side to the second side; the protruding length of the protruding portion occupies the length of N containers within the cargo hold, N being an integer and N being greater than or equal to 0.

2. The B-type fuel tank arrangement structure according to claim 1, wherein a first space is reserved on a side of the protruding portion adjacent to a first side of the main hull in a width direction thereof, a second space is reserved on a side of the protruding portion adjacent to the second side of the main hull, and the first space is equal in size to the second space.

3. The B-type fuel tank arrangement according to claim 2, wherein the protruding portion is of a rectangular or square shape.

4. The B-type fuel tank arrangement of claim 1, wherein a plurality of support bulkheads are provided within the B-type fuel tank, the support bulkheads being parallel along the length of the main hull.

5. The B-type fuel tank arrangement of claim 4, wherein each of the support bulkheads is formed in a fluid-tight configuration, adjacent two support bulkheads being spaced apart to form a closed space within the B-type fuel tank; or each of the support bulkheads is formed in a non-fluid-tight configuration.

6. The B-type fuel tank arrangement of claim 4, wherein a plurality of through holes are provided in each of the support bulkheads, and the support bulkheads formed with the through holes are formed in a non-liquid tight structure.

7. The B-type fuel tank arrangement according to claim 4, wherein a plurality of through holes are provided in each of the support bulkheads, a sealing cap is provided in each of the through holes, and the support bulkheads provided with the sealing cap in a sealing manner in the through holes are formed in a liquid-tight structure.

8. The B-type fuel tank arrangement structure according to claim 1, wherein a main deck is provided on the main hull, the main deck dividing the main hull in a height direction of the main hull to form a main hull upper space and a main hull lower space, and the B-type fuel tank and the cargo tank are both provided in the main hull lower space.

9. The B-type fuel tank arrangement according to claim 8, wherein the B-type fuel tank is further provided with an air chamber protruding from the main hull lower space through the main deck to the main hull upper space.

10. The B-type fuel tank arrangement according to claim 1, wherein an insulating space is further provided between the fuel tank site and the cargo tank site, and a support is provided between an outer wall of the B-type fuel tank and an inner wall of the fuel tank site.

11. A container ship comprising a B-mode fuel tank arrangement according to any one of claims 1 to 10.

Images