Liquefied gas supply system for ship, and ship

Abstract

This liquefied gas supply system for a ship comprises: a supply device that is disposed in a hull, and vaporizes liquefied gas and supplies the same to a consumption destination; and a protective cover that is formed in the shape of a box and covers the supply device in a state in which the supply device is accommodated therein. The supply device has an evaporator that vaporizes the liquefied gas, a liquefied gas circulation part that guides the liquefied gas to be supplied to the evaporator, and a gas circulation part through which the liquefied gas that has been vaporized flows. The protective cover covers the liquefied gas circulation part of the supply device, whereas the gas circulation part is exposed.

Description

Liquefied gas supply equipment for ships and ships

[0001] This application claims priority to Japanese Patent Application No. 2024-057749, filed on March 29, 2024, the contents of which are incorporated herein by reference.

[0002] Patent Document 1 discloses a configuration in which a liquefied gas tank for storing liquefied gas and a fuel supply device for supplying the liquefied gas stored in the liquefied gas tank to an engine are efficiently arranged in the limited space of a ship.

[0003] Japanese Patent Application Laid-Open No. 2021-123119

[0004] When a ship is equipped with a liquefied gas tank or a fuel supply device, a countermeasure against liquefied gas leakage is required, which involves covering the parts through which the liquefied gas flows with a cover or the like to retain the leaked liquefied gas inside the cover. If all of the piping leading to the liquefied gas tank were to be covered with a cover or the like, more material than necessary would be required, which could be economical. Therefore, there is a need to efficiently retain liquefied gas that leaks from the parts through which the liquefied gas flows.

[0005] The present disclosure provides a liquefied gas supply facility for a ship and the ship, which can efficiently retain liquefied gas that leaks from a portion through which the liquefied gas flows.

[0006] A liquefied gas supply system for a ship according to the present disclosure comprises a hull, a supply device arranged on the hull for vaporizing liquefied gas and supplying it to a consumer, and a box-shaped protective cover that covers the supply device while it is housed inside, the supply device having an evaporator that vaporizes the liquefied gas, a liquefied gas circulation section that guides the liquefied gas to be supplied to the evaporator, and a gas circulation section through which the vaporized liquefied gas circulates, the protective cover covering the liquefied gas circulation section of the supply device and leaving the gas circulation section exposed. A ship according to the present disclosure comprises the above-mentioned liquefied gas supply system and the hull in which the liquefied gas supply system is arranged.

[0007] According to the liquefied gas supply equipment for a ship and the ship disclosed herein, liquefied gas that leaks from parts through which liquefied gas flows can be efficiently retained.

[0008] Fig. 1 is an overall view showing an outline of a ship according to an embodiment of the present disclosure; Fig. 2 is a cross-sectional view showing an outline of a liquefied gas supply facility for a ship according to a first embodiment of the present disclosure; Fig. 3 is a cross-sectional view showing an outline of a liquefied gas supply facility for a ship according to a second embodiment of the present disclosure; Fig. 4 is a cross-sectional view showing an outline of a liquefied gas supply facility for a ship according to a third embodiment of the present disclosure.

[0009] First Embodiment A first embodiment of a liquefied gas supply facility for a ship according to the present disclosure will be described in detail below with reference to FIGS. 1 and 2 .

[0010] <Overall Configuration of Ship> The ship 1 is capable of running using liquefied gas as fuel. As shown in Fig. 1 , the ship 1 of this embodiment includes a hull 10, a tank 20, and a supply device 30. The type of ship 1 is not limited to a specific one. Examples of the type of ship 1 include a carrier of liquefied gas such as liquefied natural gas (LNG), carbon dioxide, or ammonia, a ferry, a roll-on / roll-off ship (RORO ship), and a pure car & truck carrier (PCTC).

[0011] <Hull> The hull 10 has a pair of side panels that form its outer hull, a bottom panel, and an upper deck. The side panels have a pair of side panel shells that form the port and starboard sides, respectively. The bottom panel has a bottom panel shell that connects the side panels. In this embodiment, the upper surface of the upper panel facing vertically upward is an exposed deck that faces the outside.

[0012] <Tank> The tank 20 is disposed in the hull 10. The tank 20 is capable of storing liquefied gas therein. Examples of the liquefied gas stored in the tank 20 include carbon dioxide, LNG, and ammonia.

[0013] The tank 20 of this embodiment is disposed, for example, on the upper deck of the hull 10. The tank 20 is immovably fixed to the upper deck. The tank 20 according to the present disclosure stores liquefied gas as fuel for a combustor of, for example, a main engine, an auxiliary engine, a generator engine (none of which are shown) housed within the hull 10. The tank 20 may store liquefied gas that is not used for the navigation of the ship 1. The tank 20 is not limited to a structure in which it is disposed so as to be exposed to the hull 10 as in this embodiment. For example, the tank 20 may be disposed inside the hull 10.

[0014] <Supply Device> The supply device 30 is capable of vaporizing the liquefied gas held in the tank 20 by changing its phase, adjusting it to a predetermined temperature and pressure, and supplying it to a destination. The supply device 30 is disposed in the hull 10. The supply device 30 supplies liquefied gas as fuel to the main engine and auxiliary engines, which are the destinations. The supply device 30 of this embodiment includes a platform 60, a liquefied gas flow section 41, supply piping 80, an evaporator 70, a gas flow section 51, and a protective cover 90. In the following description, liquefied gas in a liquid state will be simply referred to as liquefied gas, and vaporized liquefied gas from liquefied gas in a liquid state will be referred to as vaporized liquefied gas.

[0015] <Platform> The platform 60 is disposed on the upper deck. The platform 60 supports the liquefied gas distribution section 41, the supply pipe 80, the evaporator 70, the gas distribution section 51, and the protective cover 90 from below in the vertical direction. Note that the platform 60 is not limited to a structure in which it is disposed so as to be exposed to the hull 10 as in the present embodiment. For example, the platform 60 may be disposed inside the hull 10. Furthermore, although the supply device 30 in the present embodiment has one platform 60, the supply device 30 is not limited to such a configuration. The supply device 30 may not have a platform 60, or may have multiple platforms 60.

[0016] <Liquefied gas circulation section> The liquefied gas circulation section 41 sends the liquefied gas supplied from the tank 20 to the evaporator 70. In other words, the liquefied gas circulation section 41 guides the liquefied gas supplied to the evaporator 70. The liquefied gas circulation section 41 is connected to the tank 20. The liquefied gas circulation section 41 is disposed vertically above the platform 60. In addition to piping, the liquefied gas circulation section 41 is equipped with valves, meters, joints, and the like as needed.

[0017] Note that the piping upstream of the liquefied gas flow section 41 and not covered by the protective cover 90 has a structure other than the protective cover 90, such as double piping, that prevents leakage of the liquefied gas. (Not shown) The piping covered by the protective cover 90 does not need to be provided with a structure that prevents leakage of the liquefied gas, such as double piping.

[0018] <Evaporator> The evaporator 70 vaporizes the liquefied gas that has been fed into it. The evaporator 70 heats the liquefied gas. The evaporator 70 is disposed downstream of the flow of the liquefied gas relative to the liquefied gas flow section 41. The liquefied gas vaporized by the evaporator 70 is fed to the main engine and the auxiliary engines. The evaporator 70 is disposed vertically above the platform 60. The evaporator 70 is supported on the platform 60 via, for example, a support member (not shown).

[0019] <Supply piping> The supply piping 80 sends liquefied gas from the liquefied gas circulation section 41 to the evaporator 70. The supply piping 80 connects the liquefied gas circulation section 41 and the evaporator 70. The supply piping 80 is a pipe through which liquefied gas can flow. The supply piping 80 is disposed vertically above the platform 60. In the following description, the liquefied gas circulation section 41 and the supply piping 80 will be collectively referred to as the part through which liquefied gas flows.

[0020] <Gas circulation section> The gas circulation section 51 is a section (area) in the supply device 30 through which vaporized liquefied gas flows. The gas circulation section 51 is connected to the evaporator 70. The gas circulation section 51 sends the liquefied gas vaporized by the evaporator 70 to the main engine and the auxiliary engine. The gas circulation section 51 includes, in addition to piping, valves, meters, joints, and the like as necessary. Note that in this embodiment, only the section connected to the evaporator 70 is cited as the gas circulation section 51, but this is not limited to this. In the supply device 30, the section through which vaporized liquefied gas flows corresponds to the gas circulation section 51. For example, a section through which boil-off gas flows can be cited.

[0021] <Protective cover> The protective cover 90 covers the portion through which the liquefied gas flows in order to prevent leakage of the liquefied gas. In other words, the protective cover 90 separates the portion through which the liquefied gas flows from the outside area. In this way, the protective cover 90 protects the portion through which the liquefied gas flows.

[0022] The protective cover 90 is formed, for example, in a box shape. The protective cover 90 is fixed to the platform 60. Therefore, the protective cover 90 covers the sides and the vertically upper side of the portion through which the liquefied gas flows, and the platform 60 covers the vertically lower side of the portion through which the liquefied gas flows. Therefore, the protective cover 90, together with the platform 60, surrounds the entire portion through which the liquefied gas flows. Note that if the platform 60 is not installed, the protective cover 90 alone may cover the entire portion through which the liquefied gas flows, including the vertically lower side. Also, even if the platform 60 is installed, the protective cover 90 may cover the entire portion through which the liquefied gas flows, including the vertically lower side. Also, the platform 60 and the protective cover 90 may be detachable with bolts or the like.

[0023] The protective cover 90 also exposes the portion through which the vaporized liquefied gas flows. That is, the protective cover 90 covers the liquefied gas flow section 41 and the supply pipe 80, and exposes the gas flow section 51. Furthermore, the protective cover 90 of this embodiment also covers the lower vertical portion of the evaporator 70 so as to cover the portion where the supply pipe 80 and the evaporator 70 contact each other. Only one protective cover 90 is provided. The protective cover 90 is fixed to the platform 60.

[0024] 2, the protective cover 90 is provided so as to cover a portion of the evaporator 70, but this is not limited thereto. As described above, the protective cover 90 may cover the entire portion through which the liquefied gas flows. That is, the protective cover 90 may not cover the evaporator 70, and may be adjacent to the evaporator 70, for example. The protective cover 90 may also be provided so as to cover the entire evaporator 70.

[0025] <Effects> In the liquefied gas supply equipment of the ship 1 as described above, the portion through which the liquefied gas flows is covered by the protective cover 90. As a result, even if liquefied gas leaks from the liquefied gas flow portion 41, the leaked liquefied gas is retained inside the protective cover 90. In other words, even if such liquefied gas leaks, the liquefied gas will not flow out of the protective cover 90.

[0026] Furthermore, the protective cover 90 of this embodiment is formed in a box shape. Therefore, it covers the sides and the vertically downward and upward directions of the portion through which the liquefied gas flows, i.e., the entire periphery. This allows the protective cover 90 to contain not only liquefied gas that drips downward in the vertical direction due to leakage, but also liquefied gas that splashes horizontally or upward from, for example, a flange.

[0027] The protective cover 90 is installed so as to cover the liquefied gas flow section 41 while leaving the gas flow section 51 exposed. This makes it possible to efficiently cover only the section through which the liquefied gas flows. In other words, the protective cover 90 can be prevented from becoming too large, and therefore its weight can be prevented from increasing.

[0028] By minimizing the protective cover 90, it is possible to minimize the number of components that constitute the protective cover 90. This also makes it possible to reduce the costs of manufacturing the liquefied gas supply facility, and ultimately the ship 1.

[0029] Second Embodiment Next, a second embodiment of the present disclosure will be described with reference to Fig. 3. In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0030] The supply device 30 of the liquefied gas supply facility according to the second embodiment includes a first unit 40 and a second unit 50. The first unit 40 includes a portion through which liquefied gas flows. The second unit 50 includes a portion through which vaporized liquefied gas flows. The first unit 40 and the second unit 50 each include, in addition to piping, valves, meters, joints, and the like as necessary.

[0031] The evaporator 70 is disposed in the first unit 40. The supply device 30 also has a supply pipe 80 that connects the evaporator 70 and the liquefied gas flow section 41. The protective cover 90 covers not only the liquefied gas flow section 41 but also the supply pipe 80, exposing the evaporator 70. Note that the entire evaporator 70 does not have to be exposed from the protective cover 90, and a portion of the evaporator 70 may be covered by the protective cover 90 as necessary.

[0032] <Operation and Effect> In the liquefied gas supply equipment for the ship 1 according to the second embodiment described above, the protective cover 90 covers not only the liquefied gas flow section 41 but also the supply piping 80. On the other hand, the protective cover 90 exposes the evaporator 70. Therefore, the protective cover 90 covers the area where liquefied gas is supplied to the evaporator 70, but does not cover the area where vaporized liquefied gas exists, such as the evaporator 70 itself. This makes it possible to more precisely exclude the area where vaporized liquefied gas flows, while the protective cover 90 covers the area where liquefied gas flows up to just before it reaches the evaporator 70.

[0033] The evaporator 70 is generally large in size. Furthermore, the evaporator 70 is also equipped with piping for a fluid (such as water, steam, or antifreeze) that serves as a heat transfer medium. By not having the protective cover 90 cover the evaporator 70, it is possible to prevent the protective cover 90 from becoming too large due to the evaporator 70 and its piping. Note that the protective cover 90 does not have to completely expose the evaporator 70. If necessary, the protective cover 90 may cover the evaporator 70 within a reasonable range. For example, the protective cover 90 may be configured starting from the evaporator 70. In this case, the evaporator 70 will take on a portion of the box-shaped protective cover 90, making it possible to reduce the amount of material required for the protective cover 90.

[0034] Furthermore, the evaporator 70 is disposed in the first unit 40 in which the liquefied gas flow section 41 is located, rather than in the second unit 50 in which the gas flow section 51 is located. Therefore, even if the protective cover 90 is formed to cover the supply pipe 80 and the entire pipe up to just before it reaches the evaporator 70, the size of the protective cover 90 can be reduced. Therefore, with a minimum protective cover 90, liquefied gas leaking from the portion through which the liquefied gas flows can be more efficiently retained.

[0035] Furthermore, as described above, piping and the like through which gases other than liquefied gas flow are connected to the evaporator 70. If the protective cover 90 covers the evaporator 70, these piping and the like other than liquefied gas may impose restrictions on the location of the protective cover 90 and the evaporator 70. By exposing the evaporator 70 with the protective cover 90, it is possible to reduce such restrictions on the location of placement.

[0036] Third Embodiment Next, a third embodiment of the present disclosure will be described with reference to Fig. 4. In the third embodiment, the same components as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted.

[0037] The liquefied gas supply equipment for the vessel 1 according to the third embodiment includes a first unit 40 and a second unit 50, similar to the liquefied gas supply equipment for the vessel 1 according to the second embodiment. Meanwhile, the evaporator 70 is disposed in the second unit 50. The supply device 30 includes a supply pipe 80 connecting the evaporator 70 and the liquefied gas flow section 41. The supply device 30 further includes a pipe cover 91 connected to the protective cover 90 so as to cover the entire periphery of the supply pipe 80. In other words, in the third embodiment, the piping structure from the first unit 40 to the second unit 50, through which the liquefied gas flows, has a double structure with the supply pipe 80 on the inside and the pipe cover 91 on the outside. Furthermore, the pipe cover 91 may be provided to cover not only the supply pipe 80 but also a portion of the evaporator 70, such as the portion where the supply pipe 80 and the evaporator 70 are connected, i.e., the inlet portion of the evaporator 70.

[0038] Although the double structure of the supply pipe 80 and the pipe cover 91 is illustrated so that the entire periphery does not contact other parts, this is not limiting. For example, the double structure may be disposed so as to contact the platform 60.

[0039] <Operation and Effect> In the liquefied gas supply facility for the ship 1 according to the third embodiment described above, the evaporator 70 is disposed in the second unit 50, which is disposed apart from the first unit 40 having the liquefied gas circulation portion 41. Furthermore, the supply piping 80 is covered over its entire periphery by the piping cover 91. Therefore, the protective cover 90 can cover only the liquefied gas circulation portion 41 present in the first unit 40 without covering the supply piping 80, and therefore the size of the protective cover 90 can be reduced compared to when the supply piping 80 is covered with the protective cover 90.

[0040] The evaporator 70 is generally large in size. In addition, the evaporator 70 also requires piping for a fluid (water, steam, antifreeze, etc.) that serves as a heat transfer medium. By not providing the evaporator 70 in the first unit 40, it is possible to prevent the first unit 40 from becoming large in size due to the provision of the evaporator 70 and its piping.

[0041] Furthermore, the supply pipe 80 itself is covered by a pipe cover 91. This allows the supply pipe 80 to be disposed outside the protective cover 90, and prevents the leaked liquefied gas from dripping and coming into contact with the hull 10 in the event of a leak from the supply pipe 80. Therefore, with a minimal protective cover 90, liquefied gas leaking from the portion through which the liquefied gas flows can be more efficiently contained.

[0042] Furthermore, by disposing the evaporator 70 in the second unit 50, it is possible to reduce the impact of the evaporator 70 itself and its surrounding piping on the protective cover 90. This makes it possible to reduce restrictions on the placement and size of the protective cover 90. It is also possible to prevent the shape of the protective cover 90 from becoming complicated.

[0043] <Other embodiments>

[0044] Each embodiment of the present disclosure has been described above in detail with reference to the drawings, but the specific configuration is not limited to this embodiment, and design changes and the like are also included within the scope that does not deviate from the gist of the present disclosure.

[0045] For example, although only one tank 20 is illustrated in the drawings of this disclosure, the present disclosure is not limited to this. The ship 1 may have multiple tanks 20.

[0046] Furthermore, the protective cover 90 does not need to expose the entire portion through which the vaporized gas flows. For example, if a portion through which liquefied gas flows and a portion through which vaporized liquefied gas flows are adjacent to each other due to the arrangement of piping, the protective cover 90 does not need to cover only the portion through which the liquefied gas flows. The protective cover 90 may be installed to cover, within a reasonable range, part of the portion through which vaporized liquefied gas flows.

[0047] Furthermore, a part of the protective cover 90 may be provided with facilities for performing maintenance, such as an opening.

[0048] Furthermore, a communication opening that connects the inside and outside may be provided in a part of the protective cover 90, so that the inside of the protective cover 90 can be ventilated by natural ventilation.

[0049] Furthermore, a plurality of protective covers 90, first units 40, second units 50, etc. may be provided as necessary.

[0050] <Additional Notes> The liquefied gas supply facility of the ship 1 described in each embodiment can be understood, for example, as follows.

[0051] (1) The liquefied gas supply equipment for a ship 1 in the first aspect is arranged on the hull 10 and comprises a supply device 30 that vaporizes liquefied gas and supplies it to a consumer, and a protective cover 90 that is formed in a box shape and covers the supply device 30 while it is housed inside. The supply device 30 has an evaporator 70 that vaporizes the liquefied gas, a liquefied gas circulation section 41 that guides the liquefied gas that is supplied to the evaporator 70, and a gas circulation section 51 through which the vaporized liquefied gas circulates. The protective cover 90 covers the liquefied gas circulation section 41 of the supply device 30, leaving the gas circulation section 51 exposed.

[0052] According to the above configuration, the protective cover 90 is installed so as to cover the liquefied gas flow portion 41 while exposing the gas flow portion 51. Therefore, it is possible to efficiently cover only the area through which the liquefied gas passes, excluding the area through which the vaporized liquefied gas flows. In other words, with a minimum amount of protective cover 90, it is possible to efficiently retain liquefied gas that leaks from the area through which the liquefied gas flows. Furthermore, by being able to efficiently cover the area through which the liquefied gas flows, it is possible to reduce the number of components that make up the protective cover 90, thereby enabling cost reductions.

[0053] (2) The liquefied gas supply equipment for ship 1 according to the second aspect is the liquefied gas supply equipment for ship 1 of (1), wherein the supply device 30 has a first unit 40 having the liquefied gas circulation section 41 and a second unit 50 having the gas circulation section 51, the evaporator 70 is disposed in the first unit 40, the supply device 30 has a supply pipe 80 connecting the evaporator 70 and the liquefied gas circulation section 41, and the protective cover 90 further covers the supply pipe 80, exposing the evaporator 70.

[0054] According to the above configuration, the protective cover 90 covers not only the liquefied gas flow section 41 but also the supply pipe 80. On the other hand, the protective cover 90 does not cover the evaporator 70 but leaves it exposed. Therefore, the protective cover 90 covers the area where liquefied gas is supplied to the evaporator 70, but does not cover the area where vaporized liquefied gas exists, such as the evaporator 70 itself. This makes it possible to cover the area through which the liquefied gas passes up to just before it reaches the evaporator 70, while more precisely excluding the area through which the vaporized liquefied gas flows.

[0055] Furthermore, the evaporator 70 is disposed in the first unit 40 in which the liquefied gas flow section 41 is located, rather than in the second unit 50 in which the gas flow section 51 is located. Therefore, even if the protective cover 90 is formed to cover the supply pipe 80 and the entire pipe up to just before it reaches the evaporator 70, the size of the protective cover 90 can be reduced. Therefore, with a minimum protective cover 90, liquefied gas leaking from the liquefied gas flow section can be more efficiently contained. Furthermore, it is possible to reduce restrictions on where the protective cover 90 that covers the liquefied gas flow section 41 can be located.

[0056] (3) A liquefied gas supply facility for a ship 1 according to a third aspect is the liquefied gas supply facility for a ship 1 of (1), wherein the supply device 30 has a first unit 40 having the liquefied gas circulation section 41 and a second unit 50 having the gas circulation section 51, the evaporator 70 is disposed in the second unit 50, the supply device 30 has a supply pipe 80 connecting the evaporator 70 and the liquefied gas circulation section 41, and the supply device 30 further has a pipe cover 91 connected to the protective cover 90 and covering the entire circumference of the supply pipe 80.

[0057] According to the above configuration, the supply pipe 80 is covered all around by the pipe cover 91, not the protective cover 90. In other words, the protective cover 90 does not cover the supply pipe 80, but only covers the liquefied gas flow section 41 present in the first unit 40. The liquefied gas flow section 41 is disposed in the first unit 40, and the evaporator 70 is disposed in the second unit 50 that is separate from the first unit 40. Therefore, the supply pipe 80 extending from the liquefied gas flow section 41 to the evaporator 70 is formed longer than when the evaporator 70 is disposed in the first unit 40. However, by not covering the supply pipe 80 with the protective cover 90, the size of the protective cover 90 can be reduced.

[0058] Furthermore, the supply pipe 80 itself is covered with a pipe cover 91. As a result, the protective cover 90 and the pipe cover 91 can cover the area through which the liquefied gas passes up to just before it reaches the evaporator 70, while more precisely excluding the area through which the vaporized liquefied gas flows. Therefore, with a minimum number of protective covers 90, liquefied gas leaking from the area through which the liquefied gas flows can be more efficiently contained. Furthermore, by arranging the evaporator 70 in the second unit 50, it is possible to reduce restrictions on the arrangement and size of the protective cover 90.

[0059] (4) A ship 1 according to a fourth aspect is a ship 1 including the liquefied gas supply equipment of (1) to (3) and a hull 10 in which the liquefied gas supply equipment is arranged.

[0060] According to the above configuration, the protective cover 90 can efficiently contain liquefied gas that leaks from the portion through which the liquefied gas flows. Furthermore, by being able to efficiently cover the liquefied gas, the number of components that make up the protective cover 90 can be reduced, thereby enabling cost reduction. Therefore, it is possible to obtain a ship 1 with reduced weight and cost.

[0061] According to the liquefied gas supply equipment for a ship and the ship disclosed herein, liquefied gas that leaks from parts through which liquefied gas flows can be efficiently retained.

[0062] REFERENCE SIGNS LIST 1 Ship 10 Hull 20 Tank 30 Supply device 40 First unit 41 Liquefied gas distribution section 50 Second unit 51 Gas distribution section 60 Platform 70 Evaporator 80 Supply pipe 90 Protective cover 91 Pipe cover

Claims

1. A liquefied gas supply facility for a ship, comprising: a supply device that is arranged on a hull and vaporizes liquefied gas to supply it to a consumer; and a box-shaped protective cover that covers the supply device while it is housed inside, wherein the supply device has an evaporator that vaporizes the liquefied gas, a liquefied gas circulation section that guides the liquefied gas that is to be supplied to the evaporator, and a gas circulation section through which the vaporized liquefied gas circulates, and the protective cover covers the liquefied gas circulation section of the supply device, leaving the gas circulation section exposed.

2. A liquefied gas supply facility for a ship as described in claim 1, wherein the supply device has a first unit having the liquefied gas circulation section and a second unit having the gas circulation section, the evaporator is disposed in the first unit, the supply device has a supply pipe connecting the evaporator and the liquefied gas circulation section, and the protective cover further covers the supply pipe, exposing the evaporator.

3. A liquefied gas supply facility for a ship as described in claim 1, wherein the supply device has a first unit having the liquefied gas circulation section and a second unit having the gas circulation section, the evaporator is disposed in the second unit, the supply device has a supply pipe connecting the evaporator and the liquefied gas circulation section, and further comprises a pipe cover connected to the protective cover and covering the entire periphery of the supply pipe.

4. A ship comprising: a liquefied gas supply facility according to any one of claims 1 to 3; and a hull in which the liquefied gas supply facility is disposed.

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