KR102293412B1 - Ship - Google Patents

Abstract

This ship has a hull, a main provided in the hull, a cargo tank provided in the hull, and a liquefied gas accommodating part 42 for storing liquefied gas as cargo in a space in the cargo tank and storing the liquefied gas as cargo. A partition wall (60) is provided for partitioning the fuel into a fuel accommodating portion (43) for storing fuel. The liquefied gas accommodating part 42 and the fuel accommodating part 43 are formed in the same cargo tank.

Description

Ship

The present invention relates to a ship. this application claims priority based on the patent application 2017-079888 for which it applied to Japan on April 13, 2017, and uses the content here.

As a ship, the carrier ship in which the cargo tank which stores liquefied gas, such as LNG and LPG, was arranged in multiple order in the fore and aft direction is known (for example, refer patent document 1). In such a carrier, the fuel tank which stores the fuel supplied to the main body is provided independently of the cargo tank.

For example, in the carrier ship of patent document 1, the fuel tank is provided independently of a cargo tank below the accommodation port of the stern side of several cargo tanks.

Japanese Patent Laid-Open No. 9-24891 Japanese Patent Laid-Open No. 61-241293

In the said carrier, since a cargo tank and a fuel tank are provided separately, it is necessary to provide corresponding piping, heat radiation, fire-extinguishing equipment, etc. which accompany these cargo tanks and a fuel tank respectively. Moreover, when a fuel tank is arranged in the fore and aft direction together with a cargo tank, the ship length may become large by that much carelessly.

For example, it is conceivable to install a fuel tank on the upper deck, but after all, it is necessary to provide the equipment for fuel tanks separately from a cargo tank. In addition, when the fuel tank is installed on the upper deck, in order to secure visibility from the bridge to the water surface in front of the bow, the size of the fuel tank is limited, which may affect the cruising distance.

The present invention provides a ship capable of storing cycle fuel without being subject to various limitations.

According to a first aspect of the present invention, a ship includes: a hull; a main provided in the hull; a cargo tank provided in the hull; A partition wall dividing the liquefied gas accommodating part and the fuel accommodating part which stores the fuel of the said cycle is provided.

According to the said structure, the inside of a cargo tank is partitioned into a liquefied gas accommodation part and a fuel accommodation part by a partition wall. Thereby, a part of the space in the cargo tank which accommodates liquefied gas is used as a fuel accommodating part. For this reason, it is not necessary to separately provide the equipment accompanying the tank for the use of the liquefied gas as cargo and the use of the main fuel. Moreover, since it is not necessary to separately provide a fuel tank in a ship body, lengthening of a ship body, etc. are not caused. In addition, there is no restriction in view from the bridge as in the case where the fuel tank is installed on the upper deck.

According to the second aspect of the present invention, the cargo tank has a tank body for forming the space inside, and a heat insulating portion made of a material having a lower thermal conductivity than the tank body and covering the outer surface of the tank body.

Thereby, the heat insulation structure of a liquefied gas and a fuel can be made common. That is, when providing the tank for liquefied gas and the tank for fuel, respectively, although it is necessary to provide a heat insulation structure in both, in the case of this aspect, a heat insulation structure can be made common and cost reduction can be aimed at.

According to the 3rd aspect of this invention, the said machine is provided in the engine room partitioned on the stern side in the said hull, and the said cargo tank is a fore and aft direction to the cargo hold partitioned on the bow side of the said engine room in the said hull. A plurality is provided, and the said partition wall may be provided only in the cargo tank arrange|positioned at the most stern side among several cargo tanks.

Thereby, since the fuel accommodating part is formed in the cargo tank closest to a base, lengthening of the fuel supply system to a base can be avoided.

According to a fourth aspect of the present invention, the cargo tank has a trunk top for communicating the space in the cargo tank upward, and between the upper end of the partition wall and the inner surface of the cargo tank, the liquefied gas accommodating part and A communicating portion for communicating the fuel accommodating portion may be formed.

Thereby, each vaporized liquefied gas and fuel can be released to the outside via a trunk top. That is, there is no need to separately provide facilities, such as a trunk top for liquefied gas opening and a fuel opening, and a relief valve, and one trunk top can be shared.

According to a fifth aspect of the present invention, the cargo tank has a trunk top for communicating the space in the cargo tank upward, and the partition wall includes the liquefied gas accommodating part and the fuel accommodation over the top and bottom of the cargo tank. A portion may be partitioned, and a part of the fuel accommodating part and the liquefied gas accommodating part may be connected to the trunk top.

Thereby, it can avoid that liquefied gas and fuel become mixed, for example, when a ship tilts. On the other hand, since each of the liquefied gas accommodating part and the fuel accommodating part is connected to the trunk top, the vaporized liquefied gas and fuel can be released to the outside via the trunk top, respectively.

According to the 6th aspect of this invention, the liquefied gas similar to the said liquefied gas stored in the said liquefied gas accommodating part may be sufficient as the said fuel.

Thereby, temperature control of a cargo tank, etc. can be performed uniformly. Further, even when the liquefied gas released through the trunk top is re-liquefied and returned to the cargo tank, the problem of mixing of different liquids does not occur because the cargo tank is one type of liquefied gas.

According to the ship, it is possible to store the fuel of the cycle without various restrictions.

BRIEF DESCRIPTION OF THE DRAWINGS It is a side view of the ship which concerns on 1st Embodiment.
It is a side view of the cargo tank of the ship which concerns on 1st Embodiment.
It is a top view of the cargo tank of the ship which concerns on 2nd Embodiment.
It is sectional drawing orthogonal to the fore and aft direction in the cargo tank of the ship which concerns on a 1st modification.
It is a side view of the cargo tank of the ship which concerns on a 2nd modified example.
It is sectional drawing orthogonal to the fore and aft direction in the cargo tank of the ship which concerns on a 3rd modified example.

EMBODIMENT OF THE INVENTION Hereinafter, the ship 100 which concerns on 1st Embodiment of this invention is demonstrated in detail with reference to drawings. The ship 100 of this embodiment is a liquefied gas carrier which transports liquefied petroleum gas (LPG; liquefied petroleum gas) as liquefied gas.

As shown in FIG. 1 , the ship 100 includes a hull 10 , a bridge 20 , a main body 25 , and a cargo tank 30 .

The ship body 10 has the side 11, the ship bottom 12, and the upper deck 13. As shown in FIG. The chord side 11 is comprised by a pair of chord side outer plate which comprises the left and right side side 11, respectively. The ship bottom 12 is comprised by the ship bottom shell which connects these left and right side 11 comrades from the lower part. The upper deck 13 connects a pair of left and right side sides 11 above the ship bottom 12 . The upper deck 13 is a freeboard deck as a traditional deck extending from the bow to the stern. The upper deck 13 extends in the horizontal direction.

The ship body 10 is formed in the substantially box shape whose cross-sectional shape orthogonal to the fore and aft direction forms space inside by these chord 11, the ship bottom 12, and the upper deck 13. The part on the stern side in the inside of the said ship body 10 becomes the engine room 14. As shown in FIG. The part on the bow side rather than the engine room 14 in the ship body 10 becomes the engine room 14 and the cargo hold|hold 15 partitioned by the bulkhead.

The bridge 20 is provided so that it may extend upward from the upper part of the ship body 10. As shown in FIG. The bridge 20 is provided in the stern side in the upper part of the ship body 10, and is provided above the engine room 14. As shown in FIG. The bridge 20 comprises a plurality of layers. An upper level of the bridge 20 is provided with a cockpit 21 for manipulating the ship 100 . The cockpit 21 is configured so that the front of the ship 100 can be viewed from a high place.

The main engine 25 is arrange|positioned in the engine room 14 in the ship body 10. The main cycle 25 of the present embodiment is driven by using LPG as a fuel. Here, the fuel of the main engine 25 is not limited to LPG, and may be combined with LPG and other fuels (bifuel), mixed (dual fuel), or the like. By the drive of the main body 25, the screw 26 provided below the stern of the ship body 10 rotates.

The cargo tank 30 (30A, 30B, 30C) is provided so that multiple (three in this embodiment) may be arranged in the fore and aft direction in the cargo hold 15 of the ship body 10. In the portion between the adjacent cargo tanks 30 comrades, a partition for separating the compartments in which each cargo tank 30 is accommodated is provided.

The cargo tank 30 of this embodiment is a square tank comprised by joining flat tank wall parts to each other. The cargo tank 30 has a tank body 40 and a trunk top 45 . The tank body 40 has an accommodation space 41 formed therein. The trunk top 45 is provided in the upper part and the center of the tank main body 40, and forms the convex space which protrudes from the said accommodation space 41 inside.

Here, with respect to the cargo tank (30A) disposed on the most stern side of the plurality of cargo tanks 30, will be described in more detail with reference to FIG.

The cargo tank 30A of the most stern side has a smaller dimension in the fore and aft direction than other cargo tanks 30B and 30C. The said cargo tank 30A further has the heat insulation part 50, the partition wall 60, the relief valve 70, the reliquefaction apparatus 71, the pump 72 for cargo, and the pump 73 for fuel. .

The heat insulating part 50 has covered the outer surface of the tank main body 40 in 30 A of cargo tanks, and has covered the whole outer surface of the tank main body 40 in this embodiment. The heat insulating portion 50 is formed of a material having a lower thermal conductivity than the tank body 40 . The heat insulating part 50 may be formed of foamed resin, such as urethane, for example. The thermal insulation part 50 ensures the thermal insulation properties of the storage space 41 in the tank body 40 with the external space.

The partition wall 60 is a wall part provided in the tank main body 40 . The partition wall 60 divides the accommodation space 41 in the tank main body 40 into the liquefied gas containing part 42 and the fuel containing part 43. As shown in FIG. The liquefied gas accommodating part 42 stores liquefied gas (LPG in the present embodiment) as cargo of the ship 100 .

The fuel accommodating part 43 stores the liquefied gas (LPG in this embodiment) as fuel of the main body 25. As shown in FIG.

The partition wall 60 of this embodiment extends upward from the bottom surface (lower inner surface) of the tank main body 40 . The partition wall 60 extends over both sides in the line width direction in the tank body 40 , that is, over the side surfaces (inner surfaces of the side) on both sides in the line width direction in the tank body 40 . The upper end 61 of the partition wall 60 is arranged at intervals below the ceiling surface (the inner surface of the upper part) of the tank main body 40 . For this reason, between the upper end 61 of the partition wall 60 and the ceiling surface of the tank main body 40, the communication part 75 which connects the liquefied gas containing part 42 and the fuel containing part 43 is provided. is formed

The partition wall 60 is provided in the stern side rather than the trunk top 45 in the tank main body 40 as seen in the ship width direction. Therefore, the volume which can accommodate the fuel of the fuel accommodating part 43 is smaller than the volume which can accommodate the liquefied gas of the liquefied gas accommodating part 42. As shown in FIG. The partition wall 60 is made of the same material as the tank body 40 . A heat insulating material is not provided on the surface of the partition wall 60, and heat conduction is easily conducted between the liquefied gas of the liquefied gas accommodating part 42 and the fuel of the fuel accommodating part 43 through the partition wall 60. is composed of Accordingly, the temperature conditions of the liquefied gas accommodating part 42 and the fuel accommodating part 43 become the same.

The relief valve 70 is provided in piping communicating in the accommodation space 41 via the trunk top 45 . The relief valve 70 is in an open state only when the pressure of the accommodation space 41 becomes the predetermined pressure or more, and when it is less than the said pressure, it is in a closed state. Accordingly, the boil-off gas generated by vaporizing the liquefied gas or fuel in the accommodation space 41 is discharged to the outside of the tank body 40 . Moreover, the pressure of the gas phase in the accommodation space 41 is maintained below the set pressure of the relief valve 70. As shown in FIG.

The reliquefaction apparatus 71 cools the boil-off gas discharged to the outside of the tank body 40 by the gas suction valve 71a to liquefy it again. The gas liquefied in this way is returned into the storage space 41 of the tank body 40 again via the trunk top 45 . Thereby, the low temperature state in the tank main body 40 is maintained.

이하로 함으로써, 상압에서 액화된다. 이로 인하여, 상기 재액화 장치(71)는, LPG의 보일 오프 가스를 -46

이하로 냉각시킴으로써 재액화시켜, 탱크 본체(40) 내로 되돌리고 있다.Here, the cargo tank 30A of this embodiment is storing liquefied gas and a fuel in a normal pressure low temperature state. The "normal pressure low temperature state" means the state in which the liquefied state is maintained only by making low temperature without pressurizing liquefied gas and fuel. The liquefied gas of this embodiment and LPG as fuel is about -46

By setting it below, it liquefies at normal pressure. For this reason, the reliquefaction device 71 reduces the boil-off gas of LPG to -46.

It is made to reliquefy by cooling below, and it is returned to the inside of the tank main body 40.

The cargo pump 72 is provided in the liquefied gas accommodating part 42 of the tank main body 40 . The cargo pump 72 draws the liquefied gas out of the tank body 40 when unloading the liquefied gas as cargo in the liquefied gas accommodating part 42 . The liquefied gas drawn out from the liquefied gas accommodating part 42 is unloaded out of the ship body 10 through piping. The piping of the cargo pump 72 extends to the outside of the tank body 40 through the trunk top 45 .

The fuel pump 73 is provided in the fuel accommodating part 43 of the tank main body 40 . The fuel pump 73 sucks the fuel in the fuel accommodating part 43 and supplies it to the main body 25 . The fuel withdrawn from the fuel accommodating part 43 is supplied to the main body 25 through a pipe. The piping of the fuel pump 73 extends to the outside of the tank body 40 through the trunk top 45 .

In addition, in the cargo tank 30 on the most stern side of the plurality of cargo tanks 30 as well as in other cargo tanks 30B and 30C, the insulating part 50, the relief valve 70, the reliquefaction device 71 , a gas suction valve 71a, and a cargo pump 72 are provided. Moreover, ancillary facilities, such as a fire extinguishing installation not shown in figure, are provided so that it may correspond to each cargo tank 30B, 30C. Moreover, the cargo tanks 30B and 30C also store LPG in the atmospheric pressure and low temperature state.

Next, the effect of the ship 100 of this embodiment is demonstrated.

In this embodiment, the accommodation space 41 in the tank main body 40 of 30 A of cargo tanks is partitioned into the liquefied gas accommodation part 42 and the fuel accommodation part 43 by the partition wall 60. As shown in FIG. Thereby, a part of the space in the cargo tank 30A which accommodates liquefied gas can be utilized as the fuel accommodating part 43. As shown in FIG.

Here, if a fuel tank for storing the fuel of the main body 25 is provided in the hull 10 separately from the cargo tank 30A, the following demerits arise.

That is, when liquefied gas or fuel has flammability, it is necessary to provide an extinguishing facility for each tank. For this reason, it is necessary to provide fire-extinguishing facilities corresponding to 30 A of cargo tanks and a fuel tank, respectively. In addition, it is not limited to a fire-extinguishing installation, It is necessary to provide separately the installation accompanying each tank. Therefore, in addition to an increase in cost, the problem of the installation space of ancillary equipment also arises.

In addition, when it is going to provide a fuel tank in the hull 10, if it provides in series with the cargo tank 30A and the fore and aft direction, it will cause the lengthening of the full length of the ship 100 itself. Moreover, when it is going to provide a fuel tank on the upper deck 13, installation in the range which does not interfere with the limitation of installation space in relation to other equipment, the visibility from the cockpit 21 of the bridge 20, etc. , various restrictions arise.

On the other hand, in this embodiment, since a part of the accommodation space 41 of the cargo tank 30A originally mounted is used as the fuel accommodation part 43, as an auxiliary facility, one ancillary facility for the cargo tank 30A is an auxiliary facility. is enough For this reason, it is not necessary to separately provide the auxiliary equipment for the liquefied gas as cargo and for the fuel of the main unit 25 .

Moreover, since it is not necessary to separately provide a fuel tank in the ship body 10, the lengthening of the ship body 10, etc. are not brought about. Further, as in the case where the fuel tank is installed on the upper deck 13 , there are no restrictions on installation on the upper deck 13 or restrictions on the view from the bridge 20 . In addition, since there is no need to limit the fuel capacity according to the above restrictions, it is possible to secure the cruising distance of the vessel 100 .

Accordingly, it is possible to efficiently store the fuel in the cycle 25 without being subject to various restrictions.

Moreover, in this embodiment, the heat insulation structure of liquefied gas and fuel can be commonized by providing the heat insulation part 50 which covers the tank main body 40 of 30 A of cargo tanks. That is, when providing the tank for liquefied gas and the tank for fuel, respectively, although it is necessary to provide a heat insulation structure in both, in the case of this embodiment, a heat insulation structure can be shared and cost reduction can be aimed at.

Moreover, the fuel accommodating part 43 is formed by the partition wall 60 in the cargo tank 30A arrange|positioned at the most stern side among some cargo tank 30A, 30B, 30C. Thereby, the fuel accommodating part 43 is formed in the cargo tank 30A closest to the main|base 25 arrange|positioned in the engine room 14. As shown in FIG. Therefore, lengthening of the fuel supply system to the main body 25 can be avoided.

Moreover, in this embodiment, the communication part 75 is formed between the upper end 61 of the partition wall 60 and the ceiling surface of the tank main body 40. As shown in FIG. For this reason, each of the gaseous phase above the fuel accommodating part 43 and the gaseous phase above the liquefied gas accommodating part 42 can be guide|induced to the trunk top 45. As shown in FIG.

Thereby, each vaporized liquefied gas and fuel can be released to the outside via the trunk top 45. As shown in FIG. That is, it is not necessary to separately provide facilities, such as the trunk top 45 for liquefied gas opening and the fuel opening, and a relief valve, and one trunk top 45 can be shared. Thereby, the complexity of the structure of the cargo tank 30A and an increase in cost can be avoided.

In addition, in this embodiment, since both the liquefied gas and fuel as cargo are LPG, temperature control of 30 A of cargo tanks, etc. can be performed uniformly. In addition, even when the liquefied gas released through the trunk top 45 is re-liquefied and returned to the cargo tank 30A, since only one type of liquefied gas, LPG, is accommodated in the cargo tank 30A, a mixture of different liquids problem does not occur.

Next, a second embodiment will be described with reference to FIG. 3 . In 2nd Embodiment, the same code|symbol is attached|subjected to the same component as 1st Embodiment, and detailed description is abbreviate|omitted.

2nd Embodiment differs from 1st Embodiment in the structure of the partition wall 160. As shown in FIG. The partition wall 160 of 2nd Embodiment extends over the inside of the tank main body 40, and the line width direction. Accordingly, the partition wall 160 divides the liquefied gas accommodating part 42 and the fuel accommodating part 43 into a non-communicating state within the tank body 40 .

The partition wall 160 of 2nd Embodiment has a pair of 1st horizontal wall part 161, a pair of vertical wall part 162, and one 2nd horizontal wall part 163. As shown in FIG.

The pair of first horizontal wall portions 161 are provided so as to protrude inward in the line width direction from the inner surface on the side of the tank body 40 . These pair of 1st horizontal wall parts 161 are provided in the same fore and aft direction position, and extend in the line width direction. In the pair of first horizontal wall portions 161 , the inner ends in the line width direction face each other in the line width direction. That is, the ends of the pair of first horizontal wall portions 161 inside in the line width direction are arranged at intervals in the line width direction from each other. The end portions of the pair of first horizontal wall portions 161 in the line width direction are arranged at positions overlapping the trunk top 45 and the fore and aft directions. The pair of first horizontal wall portions 161 extend from the bottom surface of the tank body 40 to the ceiling surface.

The pair of vertical wall portions 162 extend toward the bow side from the end of the pair of first horizontal wall portions 161 inside in the line width direction. A pair of vertical wall portions 162 extend in parallel to each other, and also in the front-to-rear direction. The end of the pair of vertical wall portions 162 on the bow side extends to the location where the trunk top 45 is placed. In the present embodiment, the end of the pair of vertical wall portions 162 on the bow side extends to the center of the trunk top 45 in the fore and aft direction. The pair of vertical wall portions 162 extend from the bottom surface of the tank body 40 to the ceiling surface.

The 2nd horizontal wall part 163 connects the ends of a pair of vertical wall parts 162 on the bow side in the line width direction. The 2nd horizontal wall part 163 is arrange|positioned at the position which overlaps with the trunk top 45 in planar view.

The second horizontal wall portion 163 extends from the bottom surface of the tank body 40 to the ceiling surface.

Moreover, the relief valve 70, the reliquefaction apparatus 71, and the gas suction valve 71a are connected to the trunk top 45 similarly to 1st Embodiment. Moreover, the pump 72 for cargoes is provided in the liquefied gas accommodating part 42, and the pump 73 for fuels is provided in the fuel accommodating part 43. As shown in FIG. The piping of the pump 72 for cargo and the pump 73 for fuel extends to the outside via the trunk top 45 .

The fuel accommodating part 43 formed by the partition wall 160 has a shape extending so that the central portion in the line width direction protrudes toward the bow side to the arrangement point of the trunk top 45 in FIG. 3 when viewed in a plan view. constitutes On the other hand, as for the liquefied gas accommodating part 42, in FIG. 3 which is a planar view, the center part in the line width direction is cut toward the bow side according to the shape of the fuel accommodating part 43 to the arrangement point of the trunk top 45. is taking shape. In addition, the fuel accommodating part 43 and the liquefied gas accommodating part 42 do not communicate with each other directly, but have a structure connected to the trunk top 45, respectively.

Accordingly, it is possible to avoid mixing of the liquefied gas and fuel, for example, when the ship 100 is inclined. That is, when the liquefied gas accommodating part 42 and the fuel accommodating part 43 communicate with each other like 1st Embodiment, there is a possibility that the liquefied gas and fuel as cargo will be mixed. In contrast, in the present embodiment, since the liquefied gas accommodating part 42 and the fuel accommodating part 43 are completely partitioned in the tank main body 40, mixing of cargo and fuel can be avoided.

On the other hand, since each of the liquefied gas accommodating part 42 and the fuel accommodating part 43 is connected to the trunk top 45, the vaporized liquefied gas and fuel are released to the outside via the trunk top 45, respectively. can Accordingly, facilities such as the trunk top 45 , the relief valve 70 , the reliquefaction device 71 , and the gas suction valve 71a are installed corresponding to each of the liquefied gas accommodating part 42 and the fuel accommodating part 43 . There is no need to provide Therefore, an increase in cost can be suppressed.

As mentioned above, although embodiment of this invention was described, this invention is not limited to this, It can change suitably in the range which does not deviate from the technical idea of the invention.

For example, you may employ|adopt the structure shown in FIG. 4 as a 1st modification. In FIG. 4 , the partition wall 170 extends in the accommodating space 41 of the tank body 40 in the fore and aft direction. That is, the partition wall 170 extends from the end face on the stern side of the tank main body 40 to the end face on the bow side. Accordingly, the liquefied gas accommodating part 42 and the fuel accommodating part 43 are partitioned so as to be separated in the line width direction. The liquefied gas accommodating portion 42 and the fuel accommodating portion 43 are formed adjacent to each other in the line width direction through the partition wall 170 . In this modified example, the port side 11 becomes the fuel accommodating part 43, and the starboard side 11 becomes the liquefied gas accommodating part 42, for example.

Moreover, you may employ|adopt the structure shown in FIG. 5 as a 2nd modification, for example. The partition wall 171 in FIG. 5 has a bottom part forming wall 172 and a side part forming wall 173 . The bottom forming wall 172 extends so as to protrude toward the bow side from the end face of the stern side of the tank body 40 . The side forming wall 173 extends upward from an end of the bottom forming wall 172 on the bow side. Both the bottom forming wall 172 and the side forming wall 173 extend in the line width direction in the tank body 40 . Thereby, the partition wall 171 forms the fuel accommodating part 43 in a part of the up-down direction in the tank main body 40. As shown in FIG.

Moreover, you may employ|adopt the structure shown in FIG. 6 as a 3rd modification, for example. In FIG. 6 , a pair of partition walls 175 are provided at intervals in the line width direction. Thereby, the partition wall 175 partitions the space in the tank main body 40 into three spaces. Among the three spaces, the space on both sides in the line width direction serves as the fuel accommodating portion 43 , and the central space serves as the liquefied gas accommodating portion 42 .

In any of the above modified examples, the fuel accommodating part 43 can be formed in a part of the tank body 40 by the partition walls 170 , 171 , and 175 . That is, the formation position of the fuel accommodating part 43 in the tank main body 40 may be any position with respect to the liquefied gas front-back, left-right, up-and-down. Moreover, the fuel accommodating part 43 may be disperse|distributed and it may be formed in multiple numbers. Also by this, the effect similar to embodiment is shown.

In embodiment, although the example which provided the partition walls 60 and 161 was demonstrated in 30 A of cargo tanks 30A of the most stern side, fuel accommodation by providing partition walls 50 and 161 also in other cargo tanks 30B and 30C. The portion 43 may be formed.

In embodiment, although the example in which LPG was accommodated in both the liquefied gas accommodating part 42 and the fuel accommodating part 43 was demonstrated, these liquefied gas accommodating part 42 and the fuel accommodating part 43 are LNG, for example. The liquefied gas of the same kind, such as these, may be accommodated. Moreover, it is good also considering the liquefied gas accommodated in the liquefied gas accommodating part 42 and the fuel accommodating part 43 as liquefied gas of different types.

Industrial Applicability

According to this ship, it is possible to store the fuel of the main cycle without various restrictions.

10 hull
11 side
12 bottom
13 upper deck
14 engine room
15 cargo hold
20 bridge
21 cockpit
25 cycles
26 screw
30 cargo tank
30A cargo tank
30B cargo tank
30C cargo tank
40 tank body
41 accommodation space
42 liquefied gas receiver
43 fuel receiver
45 trunk saw
50 insulation
60 partition wall
61 top
70 relief valve
71 reliquefaction unit
71a gas suction valve
72 cargo pump
73 fuel pump
75 communication
100 ships
160 partition wall
161 first horizontal wall part
162 vertical wall part
163 second horizontal wall part
170 partition wall
171 partition wall
172 bottom forming wall
173 side forming wall
175 compartment wall

Claims (6)

hull and
a cycle provided in the hull, and
and a cargo tank provided on the hull;
a partition wall provided in the cargo tank and dividing the space in the cargo tank into a liquefied gas accommodating part for storing liquefied gas as cargo and a fuel accommodating part for storing the fuel of the main cycle;
A cargo pump provided in the liquefied gas accommodating part and for sucking the liquefied gas in the liquefied gas accommodating part to the outside of the cargo tank when unloading;
a fuel pump provided in the fuel accommodating part, sucking the fuel of the cycle in the fuel accommodating part and supplying it to the cycle,
The said fuel is a ship which is the same liquefied gas as the said liquefied gas stored in the said liquefied gas accommodating part. The method of claim 1,
The cargo tank is
A vessel having a tank body forming the space on the inside, and a heat insulating part that is made of a material having a lower thermal conductivity than the tank body and covers the outer surface of the tank body. The method of claim 1,
The cycle is provided in the engine room partitioned on the stern side in the hull,
A plurality of the cargo tanks are arranged in a cargo hold partitioned on the bow side of the engine room in the hull in the fore and aft direction,
The said partition wall is a ship provided only in the cargo tank arrange|positioned at the most stern side among a plurality of cargo tanks. The method of claim 1,
The cargo tank has a trunk top that communicates the space in the cargo tank to the outside,
A vessel in which a communication portion for communicating the liquefied gas accommodating portion and the fuel accommodating portion is formed between the upper end of the partition wall and the inner surface of the cargo tank. The method of claim 1,
The cargo tank has a trunk top that communicates the space in the cargo tank to the outside,
The partition wall divides the liquefied gas accommodating part and the fuel accommodating part over the top and bottom of the cargo tank,
A ship in which the fuel accommodating part and a part of the liquefied gas accommodating part are connected to the trunk top. delete

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