KR102077894B1 - Gas Fuelled Container Carrier - Google Patents

Abstract

Container carrier according to an embodiment of the present invention, the hull; An engine room accommodating a propulsion engine providing propulsion power to the hull; It characterized in that it comprises a fuel supply room for supplying gas fuel to the engine, the fuel supply room is provided with a first gas control unit for controlling the fuel supplied to the propulsion engine.

Description

Gas fueled container carrier

The present invention relates to a gas fuel propulsion container carrier.

A ship is a transportation means for sailing the ocean with a large amount of minerals, crude oil, natural gas, or thousands of containers, and it is made of steel and floats on the water surface by buoyancy. Go through.

These ships generate thrust by driving the engine, wherein the engine moves the piston using gasoline or diesel to rotate the crankshaft by reciprocating motion of the piston, so that the shaft connected to the crankshaft rotates to drive the propeller It was common to do so.

However, in the case of using heavy oil such as HFO or MFO as the propulsion fuel, when burning heavy oil, etc., environmental pollution due to various harmful substances contained in exhaust gas is serious, and regulations on environmental pollution are being strengthened, so heavy oil Regulations on propulsion devices using fuel oil are also being strengthened, and the cost to satisfy these regulations is gradually increasing.

Accordingly, instead of using heavy oil or a minimal amount as a fuel for a ship, liquefied natural gas, liquefied petroleum gas, etc. are replaced by gasoline or diesel in accordance with recent technological developments. The same liquefied gas is used and technology is being developed.

Liquefied natural gas is liquefied by cooling the methane obtained by refining natural gas collected from a gas field. It is a colorless and transparent liquid with little pollutants and high heat, making it an excellent fuel. On the other hand, liquefied petroleum gas is a fuel made of liquid by compressing gas composed mainly of propane (C3H8) and butane (C4H10), which come out with oil from the oil field, at room temperature. Liquefied petroleum gas, like liquefied natural gas, is colorless and odorless, and is widely used as fuel for household, business, industrial, and automotive applications.

The liquefied gas is stored in a liquefied gas storage tank installed on the ground or in a liquefied gas storage tank provided in a ship which is a transportation means for navigating the ocean. The liquefied natural gas is liquefied to a volume of 1/600. It is reduced, and liquefied petroleum gas has the advantage of high storage efficiency because it is reduced to 1/260 of propane and 1/230 of butane by liquefaction.

The liquefied gas is supplied and used in various demands. Recently, an LNG fueling method for driving an engine using LNG as a fuel in an LNG carrier carrying liquefied natural gas has been developed, and thus, LNG is used as fuel for the engine. There are increasing attempts to apply the method to other vessels other than LNG carriers.

In addition, container carriers are also attempting to improve fuel efficiency, lower emissions, and improve operational efficiency through the use of engines using liquefied gas.

The present invention was created to improve the conventional technology, and is to provide a container carrier capable of propulsive LNG fuel.

Container carrier according to the invention, the hull; An engine room accommodating a propulsion engine providing propulsion power to the hull; It characterized in that it comprises a fuel supply room for supplying gas fuel to the engine, the fuel supply room is provided with a first gas control unit for controlling the fuel supplied to the propulsion engine.

Specifically, a power generation engine provided in the engine room to generate electricity; And a second gas control unit that controls fuel supplied to the power generation engine, and the second gas control unit may be provided in the engine room.

Specifically, the first gas control unit may be ventilated with the fuel supply room.

Specifically, the second gas control unit may be ventilated independently of the engine room.

Specifically, the second gas control unit may be formed to be surrounded by a casing isolated from the engine room.

Specifically, the second gas control unit may be ventilated with the power generation engine.

Specifically, further comprising a supply line connecting the second gas control unit and the power generation engine, wherein the supply line is configured such that fuel supplied to the power generation engine flows, and the outside is ventilated. It may have a double pipe structure configured to flow the circulating gas to perform.

Since the container carrier according to the present invention uses an engine that uses liquefied gas as fuel to replace gasoline or diesel, fuel efficiency is increased, exhaust gas emissions are reduced, and operational efficiency is improved.

In addition, the container carrier according to the present invention, the gas valve train is provided in the fuel supply room rather than the engine room can be installed without sealing, there is an effect that increases the space utilization of the engine room.

1 is a cross-sectional view of a container carrier according to an embodiment of the present invention.
2 is an AA` cross-sectional view of a container carrier according to an embodiment of the present invention.
Figure 3 is a cross-sectional view BB` of the container carrier according to the embodiment of the present invention.
4 is a side cross-sectional view of a gas fuel zone and an engine zone of a container carrier according to an embodiment of the present invention.
5 is a side cross-sectional view of a container gas fuel zone and an engine zone according to another embodiment of the present invention.
6 is a DD` cross-sectional view of a container gas fuel zone according to an embodiment of the present invention.
7 is a detailed view of the cross section AA` of the container carrier according to the embodiment of the present invention.
8 is a conceptual diagram of a container carrier according to an embodiment of the present invention.
9 is a plan view of a container carrier gas fuel supply room according to an embodiment of the present invention.
10 is a conceptual diagram of ventilation of a container carrier gas fuel supply room according to an embodiment of the present invention.
11 is a conceptual diagram showing the structure of an engine room and a gas valve unit of a container carrier of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a cross-sectional view of a container carrier according to an embodiment of the present invention, FIG. 2 is an AA` cross-section of a container carrier according to an embodiment of the present invention, and FIG. 3 is a BB` cross-sectional view of a container carrier according to an embodiment of the present invention, FIG. 4 is a side sectional view of a gas fuel zone and an engine zone of a container carrier according to an embodiment of the present invention, and FIG. 5 is a side sectional view of a container gas fuel zone and an engine zone according to another embodiment of the present invention.

1 to 5, the container carrier 1 according to the embodiment of the present invention includes a cargo zone 2, a gas fuel zone 3, a diesel fuel zone 4, an engine zone 5, and a hull. (6).

Hereinafter, a container carrier 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 5.

The container carrier 1 is a container carrier 1 for transporting the container C from the departure port to the unloading area. Here, the container carrier 1 is a large container carrier having a loading capacity of 14,500 TEU or more, and has a operation capacity of 12,000 NM or more.

The container carrier 1 may be provided with a plurality of cargo hold 20 and other devices inside the hull 6 under the upper deck 60, specifically, the container carrier 1 accommodates the engine 501 The engine zone 5, the gas tank room 30 and the gas fuel zone 3 accommodating the gas fuel supply room 31, the cargo zone 2 accommodating a plurality of containers C, the diesel tank room ( It has a diesel fuel zone (4) for accommodating 40, each cargo zone (2), gas fuel zone (3), diesel fuel zone (4), engine zone (5) is a transverse bulkhead structure (Transverse Bulkhead Structure) It can be partitioned by fields (watertight transverse bulkhead structure 21, open transverse bulkhead structure 22, transverse bulkhead structure 34, etc.).

Here, the transverse bulkhead structure is a structure capable of receiving strength by connecting one or two or more unit transverse bulkheads and the unit transverse bulkheads with vertical or horizontal members. Each unit transverse bulkhead may be a Watertight Transverse Bulkhead or Closed Transverse Bulkhead or an Open Transverse Bulkhead or Structural Transverse Bulkhead, and the vertical member may be a Longitudinal Bulkhead or Vertical Web. , The horizontal member may serve as a deck.

The cargo area 2 may include a plurality of cargo holds 20.

The cargo hold 20 includes two bays, and a container C is stacked in each bay. Each bay is provided with an open BHD structure (22) between two closed BHD structures (21) provided on both sides of the cargo hold (20), 2 in one cargo hold (20) Allow the bays to form.

The watertight transverse bulkhead structure 21 is a structure in which one side is closed and the other side is open, and the open transverse bulkhead structure 22 is a structure in which both one side and the other side are open.

Specifically, the watertight transverse bulkhead structure 21 is a structure that connects one or two or more unit bulkheads with a vertical or horizontal member between the unit bulkheads, and one of the unit bulkheads is a watertight bulkhead. Or Closed Bulkhead), and the other unit partition wall is composed of an Open Bulkhead or Structural Bulkhead. Here, the vertical member may serve as a longitudinal bulkhead or vertical web, and the horizontal member may serve as a deck.

The open transverse bulkhead structure 22 has the same structure as the watertight transverse bulkhead structure 21 except that all of the unit bulkheads are formed of an open bulkhead or a structural bulkhead.

The cargo hold 20 includes a watertight transverse bulkhead structure 21 at the front and rear sides, a left side 64, a right side 65 and a hatch coaming 23 of the hull 6 on the left and right sides, and an upper side. The hatch cover 24 installed on the hatch coaming 23 and the lower side are formed by being surrounded by the ship bottom portion 63.

Here, the bottom part 63, the left part 64, and the right part 65 may be in the form of a double bulkhead with a space formed therein in the form of a hull, and a ballast that stores ballast water of a ship. It may be a water storage chamber. However, at least a portion of the bottom portion 63 may include a diesel fuel line 402 through which diesel fuel flows, and details thereof will be described later.

The gas fuel zone 3 is located in front of the engine zone 5 to accommodate the gas tank room 30 and the gas fuel supply room 31, and the gas fuel by the partial deck (Partial Deck) 32 The gas tank room 30 and the gas fuel supply room 31 may be partitioned inside the zone 3.

The gas fuel zone 3 is provided with a transverse bulkhead structure 34 in the front and rear directions (the front side is a second transverse bulkhead structure 342, the rear side is disposed with a first transverse bulkhead structure 341), and the hull 6 on the left and right sides. The left side 64 and the right side 65, the upper side of the high deck (High Deck; 33), the lower side is formed surrounded by the bottom portion 63, the space in which the gas fuel zone 3 is disposed, cargo hold ( The space may be half the space of 20), that is, a space of the same or similar size to the space occupied by the first bay 20a or the second bay 20b. Here, the transverse bulkhead structure 34 may be formed of a watertight transverse bulkhead structure.

The interior space of the gas fuel zone 3 is a gas tank room 30 provided with a liquefied gas storage tank 300 on the lower side based on the partial deck 32, and a gas fuel supply unit 311 on the upper side. A gas fuel supply room 31 is formed, and a bunker station 604 and a plurality of containers C may be disposed above the high deck 33 formed above the gas fuel zone 3.

The gas tank room 30 includes a parcel deck 32 on the upper side, a bottom portion 63 on the lower side, a second transverse bulkhead structure 342 on the front side, a first transverse bulkhead structure 341 on the rear side, and a hull 6 on the left and right sides. ) Is surrounded by a left portion 64 and a right portion 65, and has a stair-shaped bench portion 307 lowering from left and right to the center, and the liquefied gas storage tank 300 and the liquefied gas storage tank 300 The supporting support 305 can be accommodated. The gas tank room 30 may be formed to occupy a space of 70% to 80% of the height of the gas fuel zone 3.

Here, the specific arrangement of the gas tank room 30 will be described with reference to FIGS. 7 and 8.

7 is a detailed view of an A-A` section of a container carrier according to an embodiment of the present invention, and FIG. 8 is a conceptual diagram of a container carrier according to an embodiment of the present invention.

The liquefied gas storage tank 300 stores liquefied gas to be supplied to the engine 501 and may be a B-type tank as an independent storage tank. Of course, the liquefied gas storage tank 300 is not limited to the independent storage tank, and may be various storage tanks (membrane type, pressurized type, etc.).

Specifically, the liquefied gas storage tank 300 is provided below the gas fuel supply room 31 and is partitioned from the gas fuel supply room 31 by the parshal deck 32, and the upper side is preferably a support 305. The floating choke is located under the partial deck 32, and the lower side is fixed to the bottom hull B of the ship bottom portion 63 by a support 305 to be supported by the gas tank room 30.

Here, the liquefied gas storage tank 300, the upper side facing the parshal deck 32 is formed flat so that the support 305 (anti-floating choke) is present between the liquefied gas storage tank 300 and the parshal deck 32. You can. That is, the liquefied gas storage tank 300 can be provided with an anti-floating choke as a support 305 between the parcel deck 32 and the flat upper side.

The liquefied gas storage tank 300 has a length in the front-rear direction in the front-rear direction of the first bay 20a or the second bay 20b, and between the lower surface of the fuel supply room 31 and the bottom portion 63. It has a length in the vertical direction of the direction, and can have a length in the left-right direction between positions spaced within about 11.5 m or more than about 5.22 m from each of the left portion 64 or right portion 65 of the hull 6, and liquefied gas A portion of the outer wall of the storage tank 300 corresponding to the bench portion 307 has a recess portion (not shown) that is recessed in the inner direction.

Here, the length of the liquefied gas storage tank 300 in the front-rear direction and the left-right direction will be described in detail with reference to FIG. 6.

6 is a D-D` cross-sectional view of a container gas fuel zone according to an embodiment of the present invention.

As shown in FIG. 6, the liquefied gas storage tank 300 has a front shell 300a and a rear shell 300b disposed between the first transverse bulkhead structure 341 and the second transverse bulkhead structure 342. Within the space between the transverse bulkhead structure 341 and the second transverse bulkhead structure 342, the left side 64 or the right side of the hull 6 has a left side shell 300c or a light side shell 300d. Arranged between B1 and A1 in the part 65 (preferably the left part 64 of the hull 6 or spaced apart by a distance from the right part 65 to A1) to the left part 64 of the hull 6 It has a length in the left-right direction in the space between and the right part (65).

The distance from the left portion 64 or the right portion 65 of the hull 6 to B1 corresponds to about 11.5 m or the width of the hull 6/5, and the left portion 64 or the right portion 65 of the hull 6 ) To A1 may be about 5.22m.

The liquefied gas storage tank 300 may include a dome 306 as a connection portion for discharging the liquefied gas or evaporated gas stored in the liquefied gas supply line 3116 or the evaporated gas supply line 3117.

The liquefied gas storage tank 300 has a liquefied gas supply line 3116 or a boiled gas supply line 3117 to supply liquefied gas or boil-off gas, which is fuel, to the engine 501 or the auxiliary engine 502. ) Or the auxiliary engine 502 is connected to the liquefied gas storage tank 300, the liquefied gas supply line 3116 or the liquefied gas supply line 3117 is connected to the liquefied gas storage tank 300 A dome 306 that is an inlet of the storage tank 300 may be provided above the liquefied gas storage tank 300.

The dome 306 is connected to the top surface of the dome (not shown) and the liquefied gas storage tank 300 in which openings are formed and liquefied gas or evaporated gas, which is fuel, is first introduced or finally discharged into the liquefied gas storage tank 300. It has a dome bottom surface (not shown) and a dome top surface and a dome side surface (not shown) formed to extend the bottom surface of the dome can have a shape of a hollow cuboid.

In addition, the dome 306 is formed to penetrate the partial deck 32, and the surface facing the partial deck 32 is sealed by a seal portion 3061 so that the gas tank room 30 and the gas fuel supply room 31 ) Do not communicate with each other. Here, the seal portion 3061 has an effect of strengthening the sealing of the gas fuel supply room 31, and is made of an elastic material, preferably a rubber, to expand or contract the dome 306 or the parshal deck 32. It has the effect of alleviating the impact between each other.

In the dome 306, the top surface of the dome is disposed in the gas fuel supply room 31, which will be described later, and the tank connection room 310, which will be described later, is connected, and the bottom surface of the dome is disposed in the gas tank room 30, whereby the liquefied gas storage tank is It is connected to the 300, at least a portion of the side of the dome may be configured to be disposed in the gas fuel supply room (31). That is, at least a portion of the top surface of the dome and the side surface of the dome may be disposed above the partial deck 32, that is, inside the gas fuel supply room 31.

As described above, in the present invention, the top surface of the dome is disposed in the gas fuel supply room 31 and at least a part of the side of the dome is disposed in the gas fuel supply room 31, whereby various lines (liquefied gas) formed by the operator in the dome 306 The supply line 3116 and the evaporation gas supply line 3117, etc.) can be easily maintained and help to form an environment in which work can be easily performed.

The liquefied gas storage tank 300 may include an inner insulating space 301, a barrier layer 302 and an insulating layer 303, and an outer insulating space 304.

A link path may exist between the barrier layer 302 and the heat insulating layer 303. At this time, the gap is a space in which leaked liquefied gas flows when the liquefied gas leaks and finally collects in a drip tray. Can be used as The gap is used as the inner adiabatic space 301, and the inner adiabatic space 301 may be continuously supplied with an inert gas such as nitrogen, air containing oxygen of a certain ratio or less, or air from which oxygen has been removed. That is, as the inert gas flows in the inner thermal insulation space 301, additional thermal insulation may be implemented between the barrier layer 302 and the thermal insulation layer 303.

The inner adiabatic space 301 may be continuously supplied with an inert gas, while the outer adiabatic space 304 may maintain a state in which an inert gas is filled. That is, the inner insulating space 301 flows out from the inside while the inert gas continuously flows into the inside, through which the inner insulating space 301 is dried through an inert gas having low humidity or no moisture. By holding, the generation of condensate can be suppressed to improve the heat insulation performance. On the other hand, the outer insulating space 304 may be filled with an inert gas therein to maintain a closed state.

At this time, an inner inert gas supply line (not shown) and an inner inert gas discharge line (not shown) may be provided in the inner heat insulation space 301. The inner inert gas supply line may supply inert gas from the outside of the inner thermal insulation space 301 to the inner thermal insulation space 301, and may be provided to penetrate the upper surface of the gas tank room 30. In addition, the inner inert gas discharge line can transmit the inert gas from the inner insulating space 301 to the outside of the inner insulating space 301 (which can be connected to a vent mast 602, etc.), and the gas tank room 30 It may be provided to penetrate the upper surface.

At this time, the point where the inner inert gas discharge line is connected to the inner heat insulating space 301 may be provided below the point where the inner inert gas supply line is connected to the inner heat insulating space 301, which means that the inert gas has an inner heat insulating space. This is to ensure that it is discharged after it is sufficiently filled in (301).

A leak gas sensor (not shown) for detecting whether liquefied gas leaks from the inner heat insulation space 301 may be placed at or near the point where the inner inert gas discharge line is connected. That is, leaks in the inner adiabatic space 301 are detected by a leak gas sensor, and / or a leak gas sensor (not illustrated) connected to the outer adiabatic space 304 through a sampling line (not shown). Can be detected by The leak gas sensor for detecting whether or not a leak occurs in the inner heat insulation space 301 may be a sensor that detects whether a leak occurs. On the other hand, the leak gas sensor connected to the outer heat insulation space 304 may be a sensor that chemically detects leakage. In this case, the accuracy may be higher than the leak gas sensor corresponding to the inner heat insulating space 301 compared to the leak gas sensor corresponding to the inner heat insulating space 301.

The barrier layer 302 may be provided on the inner side (the side adjacent to the liquefied gas) compared to the insulating layer 303, and the insulating layer 303 may be provided on the outer side (the side adjacent to the hull) compared to the barrier layer 302. However, this may vary depending on the structure of the liquefied gas storage tank 300, and may be variously determined according to whether the liquefied gas storage tank 300 is a membrane type, a standalone type, a pressurized type, or the like.

The insulating layer 303 insulates the inside of the liquefied gas storage tank 300 from the outside using an insulating material. The insulating layer 303 forms an insulating structure using various insulating materials such as polyurethane foam (PUF), perlite, and wood, and includes metals such as stainless steel (SUS) and invar (INVAR). You can.

The insulating layer 303 may have a structure determined according to a conventionally well-known type such as Mark III, No. 96, etc. when the liquefied gas storage tank 300 is a membrane type, or a MOSS when the liquefied gas storage tank 300 is a standalone type. , The structure may be determined according to a conventionally well-known type such as SPB. Of course, the structure of the heat insulating layer 303 is not limited to the above example.

The barrier layer 302 may insulate the inside of the liquefied gas storage tank 300 using an inert gas from the outside. The barrier layer 302 may form an empty space, and the empty space of the barrier layer 302 may be between the inner wall of the liquefied gas storage tank 300 and the insulating layer 303, and / or the liquefied gas storage tank 300. It may be formed between the outer wall and the heat insulating layer 303.

The barrier layer 302 may be filled with an inert gas such as nitrogen, and the inert gas may be supplied by an inert gas supply 605 provided outside. At this time, the inert gas supply 605 may use a nitrogen generator (N2 generator).

The outer heat insulation space 304 is formed in a space between the outer wall of the liquefied gas storage tank 300 and the inner wall of the gas tank room 30, and is filled with an inert gas such as nitrogen to the outside of the liquefied gas storage tank 300. Can be insulated from the outside of the gas tank room 30.

The outer insulating space 304 is sized by the distance between the outer wall of the liquefied gas storage tank 300 and the inner wall of the gas tank room 30, and an inert gas may be supplied by the inert gas supply 605, , Since the outer insulating space 304 has a larger size of the space than the barrier layer 302 of the inner insulating space 301, the supply of initial inert gas is from the outside or the land of the container carrier 1 Inert gas may be supplied. Here, the outer heat insulating space 304 may be supplemented with an inert gas by an inert gas supply 605 when an inert gas leaks.

However, since the outer insulating space 304 may be sealed after the inert gas is filled, the discharge of a general inert gas such as the inner insulating space 301 may not be performed. However, there may be a case in which an inert gas needs to be discharged due to a change (internal pressure, etc.) inside the outer heat insulating space 304. Therefore, the outer heat insulating space 304 basically has an outer inert gas discharge line that maintains a closed state ( Code not shown) may be provided. A safety valve (not shown) is provided in the outside inert gas discharge line, and the safety valve is a reference value due to some reason (excessive inert gas injection, leakage from the liquefied gas storage tank 300) in the outside insulation space 304. If it exceeds, it can be opened. Therefore, the outer inert gas discharge line can discharge the inert gas from the outer insulating space 304 to the outside only by opening the safety valve. At this time, the outer inert gas discharge line may be connected to the vent mast 602.

A sampling line (not shown) may be provided in the outer insulating space 304. At this time, the sampling line may have one end provided in the outer insulating space 21 and the other end extending out of the outer insulating space 304.

A leak gas sensor (not shown) may be connected to the sampling line extending outward of the outer heat insulation space 304. The leak gas sensor can detect whether the leaked liquefied gas is mixed with the inert gas extracted along the sampling line.

A leak gas sensor may be placed directly inside the outer heat insulating space 304 to detect whether it is leaking, but in this case, the worker needs to enter the inside of the outer heat insulating space 304 in order to check the leak gas sensor. It is inconvenient because there is a problem that all inert gas filled in) must be replaced with external air or the oxygen concentration must be matched with external air.

Therefore, in the present embodiment, only the sampling line is placed in the outer insulating space 304, and the leak gas sensor is provided in the sampling line extending to the outer insulating space 304, so that even if an operator does not enter the outer insulating space 304, the leak gas sensor Can be checked.

At this time, the sampling line may be extended to the sampling room (eg, the cabin 600), which is easily accessible to the other end of the operator, and the leak gas sensor may be provided in the cabin 600. In addition, one end of the sampling line may be provided on the upper and lower sides of the outer insulating space 304, respectively.

Here, the outer insulating space 304 is a sampling line that samples the gas inside the outer insulating space 304 and samples the inner gas of the outer insulating space 304 in order to sense the composition of the gas, the component, or the inner receiving ratio of the gas. (Not shown) may further include. The sampling line may further include a sampling device that analyzes the sampling gas in a separate space inside the cabin 600, and the sampling device corresponds to a known configuration, so a detailed description thereof will be omitted.

Support 305 is provided on the upper or lower side of the liquefied gas storage tank 300 to support the liquefied gas storage tank 300 to be fixed to the gas tank room 30, the liquefied gas storage tank 300 The support 305 is provided between the upper side and the bottom part 63 of the liquefied gas storage tank 300 and the anti-floating choke (Anti-Floating Chock), which is provided between the partial deck 32, the support 305 And anti-rolling chock.

The anti-floating choke, which is a support 305 provided between the upper side of the liquefied gas storage tank 300 and the parshal deck 32, increases the liquefied gas storage tank 300 when seawater flows into the container carrier 1 Or by preventing the flow in the gas tank room 30 by sea water, the liquefied gas storage tank 300 can be prevented from being damaged or damaged by being impacted by the impact of the hull of the hull 6.

The anti-rolling choke, which is a support 305 provided between the lower side of the liquefied gas storage tank 300 and the bottom portion 63, supports the lower side of the liquefied gas storage tank 300 and rolls the liquefied gas storage tank 300. Alternatively, it is possible to prevent downward movement.

In an embodiment of the present invention, the liquefied gas storage tank 300 may further include a reinforcing material 3051 provided on the lower side.

The reinforcing material 3051 is provided at the lower portion of the liquefied gas storage tank 300 in the hull of the ship bottom portion 63 to prevent the ship bottom portion 63 from being destroyed from the weight of the liquefied gas storage tank 300. At this time, specifically, the reinforcing material 3051 may be provided over the entire support 305 of the liquefied gas storage tank 300, and the reinforcing material 3051 has a weight of up to about 700 tons for one support 305 It has the effect of improving the tank conduction stability.

The gas fuel supply room 31 includes a high deck 33 on the upper side, a partial deck 32 on the lower side, a second transverse bulkhead structure 342 on the front side, a first transverse bulkhead structure 341 on the rear side, and a hull on the left and right sides ( It is surrounded by the left side 64 and right side 65 of 6), partitioned from the gas tank room 30 by the parshal deck 32, and internal devices can be supported through the parshal deck 32. Here, the gas fuel supply room 31 may be formed to occupy 20% to 30% of the height of the gas fuel zone 3, and the left and right sides surrounding the gas fuel supply room 31 are in the form of a hull. It may be a Passage Way, which is a moving space of a worker or crew, as well as the left part 64 and the right part 65 of the hull 6 composed of.

The gas fuel supply room 31 includes at least a portion of the dome 306, a tank connection room 310 connected to an upper side of the dome 306, a gas fuel supply unit 311, a gas valve train (GVT) 312, and inertness A housing that can accommodate a gas supply (not shown) and is provided with a gas fuel supply room inlet 313 and a gas fuel supply room discharge part 314 for circulating the internal air of the gas fuel supply room 31 It may be formed to be surrounded by (not shown).

The housing of the gas fuel supply room 31 is formed along the parcel deck 32 and the high deck 33, the left side 64 and the right side 65 of the hull 6, and the transverse bulkhead structure 34, and the housing The inside of the insulating material (not shown) formed of a heat insulating material may be provided, or the housing itself may be formed of a heat insulating material. At this time, the heat insulating material may be a SUS material or a known material for implementing heat insulation.

The housing of the gas fuel supply room 31 may include a gas fuel supply room inlet 313 for sucking outside air to circulate the air inside the gas fuel supply room 31, and the gas fuel supply room A gas fuel supply room discharge part 314 for discharging the internal air of 31 to the outside may be provided. The internal air of the gas fuel supply room 31 can be circulated by applying negative pressure or positive pressure to the inside of the gas fuel supply room 31 to discharge the internal gas to the outside or to introduce external gas into the interior. A separate device (preferably a fan) may be provided in the fuel supply room inlet part 313 or the discharge part 314. Here, the gas fuel supply room discharge unit 314 may communicate with the bunker station 604.

The gas fuel supply room 31 is a connecting portion connecting a liquefied gas supply line 3116 and a boil-off gas supply line 3117, which are lines connecting the dome 306 and the gas fuel supply unit 311 (not shown). It may be further provided, the connection portion without providing a separate cover so that the outer surface of the connection portion can be exposed to the interior of the gas fuel supply room (31). At this time, the liquefied gas supply line 3116 and the evaporated gas supply line 3117 can be protected by the housing of the gas fuel supply room 31 without providing separate covers, and the insulation degree is provided by the heat insulation provided in the housing. It can be done together. Here, of course, the ventilation of the liquefied gas supply line 3116 and the evaporated gas supply line 3117 may be performed together with the ventilation (internal air circulation) of the gas fuel supply room 31.

As described above, the housing of the gas fuel supply room 31 is sealed with a housing made of SUS material, or a liquefied gas supply line 3116 for supplying fuel to the gas fuel supply unit 311 by forming an insulating portion provided inside the housing And it is possible to implement the protection and ventilation of the evaporation gas supply line (3117), there is an effect that can simplify the structure of the liquefied gas supply line (3116) and the evaporation gas supply line (3117).

The gas fuel supply room 31 may perform ventilating to ventilate the internal gas, and the ventilating mechanism will be described in detail with reference to FIG. 10.

10 is a conceptual diagram of ventilation of a container carrier gas fuel supply room according to an embodiment of the present invention.

Gas fuel supply room 31, the gas through the gas fuel supply room inlet 313 formed at least one of the upper deck 60 is formed on the side of the high deck 33, the gas outside the gas fuel supply room 31 The gas can be introduced into the interior of the gas fuel supply room 31, and the introduced gas flows through stagnant gases existing in the gas fuel supply room 31 to the lower side of the bunker station 604 along with the introduced gas. It may be discharged to the gas fuel supply room discharge unit 314 provided with at least one.

That is, the gas fuel supply room 31 may discharge gas existing therein or stagnant gas therein through the gas introduced from the outside to the outside of the gas fuel supply room 31, thereby supplying gas fuel When the liquefied gas leaks or leaks or leaks gas inside the room 31 and diffuses it, gas such as evaporated gas is discharged to the outside together with the gas introduced from the outside, thereby allowing the gas fuel supply room 31 to It can prevent cold sea and secure safety.

This can be implemented by generating positive or negative pressure by a separate device (preferably a fan) installed in the gas fuel supply room inlet 313 or the gas fuel supply room discharge 314.

The tank connection room 310, which is connected to the top surface of the dome 306, is accommodated in the gas fuel supply room 31 and is provided in a rectangular parallelepiped shape or other shape to provide a liquefied gas storage tank 300 and a gas fuel supply unit ( 311).

The tank connection room 310 is configured to have, for example, a quadrangular shape, and is configured to have a door portion 3106 formed on a side surface thereof, so that the liquefied gas storage tank 300 and the liquefied gas supply line 3116 or evaporated gas The supply line 3117 may be formed to surround a portion to be connected.

The tank connection room 310 does not need to separately circulate the internal gas by filling an inert gas therein, and there is no need to separately provide equipment for circulating the internal gas, thereby reducing the construction cost of the tank connection room 310 There is an effect that the structure of the tank connection room 310 can be simplified. Here, the tank connection room 310 may be connected to an inert gas supply 605 to receive an inert gas, and may receive an inert gas.

In addition, even when the liquefied gas leaks or leaks from the portion where the top surface of the dome 306 and the liquefied gas supply line 3116 or the evaporated gas supply line 3117 are connected through the tank connection room 310, in the present invention, The gas storage tank 300 or the parshal deck 32 and other devices provided in the gas fuel supply room 31 can prevent cold damage.

The door part 3106 is configured in a form that can be opened and closed (for example, in the form of a door) to allow the operator or work device to flow in and out from the outside of the tank connection room 310, and the tank connection room 310 ).

This is a maintenance device during maintenance of the portion where the door part 3106 is provided on the upper side of the tank connection room 310 and the top surface of the dome 306 and the liquefied gas supply line 3116 or the evaporation gas supply line 3117 are connected. In order to flow in and out (not shown), a separate hatch must be provided on the upper side of the gas fuel supply room 31, that is, the high deck 33, and the maintenance device and the worker must be moved through the hatch, so maintenance work is very inconvenient. There is a problem that accessibility becomes low and maintenance work efficiency decreases.

Therefore, in the present invention, the door part 3106 is provided on the side of the tank connection room 310 so that the top surface of the dome 306 and the liquefied gas supply line 3116 or the boiled gas supply line 3117 are connected. During the maintenance, the movement of the maintenance equipment and the worker into the tank connection room 310 is made to the left and right, so that the maintenance device and the operator can easily flow in and out, and the work accessibility is also improved, thereby maximizing the efficiency of the maintenance operation.

In this way, the container carrier 1 of the present invention can simplify the structure of the tank connection room 310 connecting the liquefied gas storage tank 300 and the gas fuel supply unit 311, and the interior of the tank connection room 310 The tight sealing can effectively prevent cold heat damage from fuel leakage.

The tank connection room 310 may perform ventilation to be implemented to vent the internal gas, and the ventilation mechanism will be described in detail with reference to FIG. 10 again. In this case, the tank connection room 310 seals the interior. It is assumed that the method of ventilating is adopted rather than the method of doing so.

The tank connection room 310 connects the gas fuel supply room inlet 313 and a duct (not shown) to introduce gas into the tank connection room 310 from the outside of the gas fuel supply room 31. The gas fuel supply room discharge part provided at least one below the bunker station 604 through the duct along with the introduced gas by flowing stagnant gases existing inside the tank connection room 310. It can be discharged to 314.

That is, the tank connection room 310 may discharge gas existing therein or stagnant gas therein to the outside of the tank connection room 310 through the gas introduced from the outside, thereby causing the tank connection room 310 ) When liquefied gas leaks or leaks and diffuses gas such as evaporation gas, gas such as evaporation gas is discharged to the outside together with gas introduced from the outside, preventing and preventing cold damage inside the tank connection room 310 Can be secured.

This can be implemented by generating positive pressure or negative pressure by a separate device (preferably a fan) installed in the gas fuel supply room inlet 313 or the gas fuel supply room outlet 314, and the tank connection room 310 is to vent the internal gas independently of the gas fuel supply room 31 by using a separate line (not shown; for example, a duct line) connected to the gas fuel supply room discharge part 314 You can.

In this embodiment, the boil-off gas generated in the liquefied gas storage tank 300 is supplied to the gas fuel supply unit 311 (preferably the compressor 3114) to be utilized for heating the boil-off gas, or vaporize the boil-off gas, By pressurizing and utilizing it as fuel for the engine 501, it is possible to efficiently use evaporated gas. In order to implement this, in the embodiment of the present invention, a gas fuel supply unit 311 may be provided.

This will be described in detail with reference to FIG. 9.

9 is a plan view of a container carrier gas fuel supply room according to an embodiment of the present invention.

The gas fuel supply unit 311 processes the pump 3110 for processing liquefied gas, which is fuel stored in the liquefied gas storage tank 300, and the heat exchanger 3112 and the evaporation gas generated from the liquefied gas storage tank 300. It may include a compressor 3114, the liquefied gas supply line (3116) for supplying liquefied gas from the liquefied gas storage tank 300 to the engine 501 or the auxiliary engine 502 and the liquefied gas storage tank ( 300) may include a boil-off gas supply line 3117 supplied to the engine 501 or the auxiliary engine 502.

Here, the liquefied gas supply line 3116, the liquefied gas stored in the liquefied gas storage tank 300, the pump 3110, the heat exchanger 3112, the engine 501 connected to each other in order The pump 3110 and the heat exchanger 3112 may be pressurized and heated to high pressure and high temperature to be supplied to the engine 501. The liquefied gas supplied to the engine 501 drives the engine 501 to generate the driving force of the container carrier 1.

The evaporation gas supply line 3117 is connected to each other in the order of the liquefied gas storage tank 300, the compressor 3114, the engine 501, or the auxiliary engine 502, so that the evaporated gas generated from the liquefied gas storage tank 300 It can be pressurized at high pressure through the compressor 3114 to be supplied to the engine 501 or the auxiliary engine 502.

Here, the compressor 3114 may process the boil-off gas to drive the auxiliary engine 502, preferably a boiler or DFDG, to prevent an increase in the internal pressure of the liquefied gas storage tank 300, in addition to supplying it to the engine 501 It can help to generate the thrust of the container carrier (1).

When the above-described pump 3110, heat exchanger 3112, compressor 3114 malfunctions or shuts down, or when liquefied gas or evaporated gas leaks or leaks, auxiliary liquid or evaporated gas is treated. In order to process liquefied gas or boil-off gas, a device for auxiliary treatment of liquefied gas or boil-off gas should be placed in a safe place to avoid additional cold damage by leaking or leaking boiled gas or liquefied gas. do.

Specifically, when the backup room 35 is installed open to each other without being isolated from the gas fuel supply room 31, the pump 3110, the heat exchanger 3112, and the compressor 3114 may malfunction or shut down. When the pump 3110, the heat exchanger 3112, and the compressor 3114 are stopped due to an accident such as a fire or leaking or leaking of liquefied gas or boil-off gas and a fire in the gas fuel supply room 31 , In the backup room 35, it is also possible to come into contact with accidents such as fire or fuel leakage.

Due to this, the auxiliary devices accommodated inside the backup room 35 become inoperable, and thus, the propulsion of the container carrier 1 is stopped or the liquefied gas storage tank cannot be processed because the evaporation gas in the liquefied gas storage tank 300 cannot be processed. The internal pressure of 300 increases rapidly. This causes a weakening of the durability of the liquefied gas storage tank 300 and, in severe cases, destruction occurs, which may cause a serious problem in the safety of the container carrier 1.

Therefore, in the present invention, the pump 3110, the heat exchanger 3112, an auxiliary pump for assisting the compressor 3114 (not shown), an auxiliary heat exchanger (not shown), and an auxiliary compressor 3115 are provided. This is disposed in the backup room 35, which is a space independent of the gas fuel supply room 31, and forms an isolated space from the gas fuel supply room 31. As a result, even when the pump 3110, the heat exchanger 3112, and the compressor 3114 malfunction or shut down, the auxiliary pump, the auxiliary heat exchanger, and the auxiliary compressor 3115 are driven to continuously maintain the propulsion of the container carrier 1 and Since the internal pressure of the liquefied gas storage tank 300 can be prevented, there is an effect of improving the reliability and safety of the container carrier 1.

The backup room 35 may be located inside the gas fuel supply room 31 and may include an auxiliary pump, an auxiliary heat exchanger, and an auxiliary compressor 3115, and the auxiliary pump and auxiliary heat exchanger may be stored in a liquefied gas storage tank ( 300) and another line connecting the engine 501 (not shown) and another separate line connecting the auxiliary compressor 3115 to the liquefied gas storage tank 300 and the engine 501 (coded) Not included). Here, the auxiliary compressor 3115 may be a low duty (LD) compressor, thereby maximizing securing of available space in the ship using only a minimum space.

In the backup room 35, when the pump 3110, the heat exchanger 3112 malfunctions or shuts down, or when liquefied gas or evaporation gas leaks or leaks, the auxiliary pump and auxiliary heat exchanger are driven to drive the container carrier 1 When the amount of fuel generated by the auxiliary pump and the auxiliary heat exchanger is insufficient to generate the driving force, and the propulsion of the container carrier 1 is insufficient, the diesel fuel stored in the diesel tank 401 may be additionally supplied to supplement it.

In addition, the backup room 35, when the compressor 3114 malfunctions or shuts down or when liquefied gas or boil-off gas leaks or leaks, drives the auxiliary compressor 3115 to generate the liquefied gas storage tank 300. By treating the boil-off gas, it is possible to effectively manage the internal pressure of the liquefied gas storage tank 300, and when there is no need to generate thrust of the container carrier 1 (hotel load), the engine 501 for the treatment of boil-off gas In addition, it can be supplied to the auxiliary engine 502 for processing.

The backup room 35 may also have a separate venting structure. The backup room 35 may receive air from the gas fuel supply room inlet 313 to circulate the inside and then discharge air to the gas fuel supply room discharge unit 314. At this time, since the backup room 35 should be configured independently of the gas fuel supply room 31, the gas fuel supply room inlet portion 313 and the gas fuel supply room discharge portion 314 are ducted (not shown). It can be connected by the connecting line of.

The gas valve train (GVT) 312 is a device that can control the flow rate of liquefied gas or evaporated gas, and implements the flow of liquefied gas or evaporated gas, and can be classified as a dangerous zone on the zone, and is safe. Sealing may be required if located in a safety zone.

The gas valve train 312 can control the flow of evaporation gas or liquefied gas supplied to the engine 501 on / off, and evaporation gas or the like delivered by the gas valve train 312 is a gas valve. Since the pressure is relatively higher than the boil-off gas transmitted by the unit 503, etc., it evaporates from the gas fuel supply unit 311 of the gas fuel supply room 31, not the engine room 50 in which the engine 501 is provided. Even if the flow of gas or liquefied gas is controlled on / off, it is possible to sufficiently cope with load fluctuations of the engine 501.

Therefore, the gas valve train 312 may be provided in the gas fuel supply room 31 in which the gas fuel supply unit 311 is provided, and not in the engine room 50 in which the engine 501 is provided. Since 31 is classified as a danger zone, the gas valve train 312 may be installed without being sealed in a room form, unlike the gas valve unit 503.

In particular, since the container carrier 1 belongs to a slender ship having a small square coefficient (Cb, block coefficient), the engine room 50 is narrower than other merchant ships, but the present invention is installed in the engine room 50. By moving the installed gas valve train 312 to the gas fuel supply room 31 rather than the engine room 50, space utilization of the engine room 50 can be increased. Can be installed in the gas fuel supply room 31 far from the engine 501 because the gas valve train 312 handles high pressure liquefied gas, that is, when the liquefied gas enters the gas valve train 312 Since it already corresponds to a high pressure state, even if the gas valve train 312 and the engine 501 are far apart, liquefied gas can be smoothly supplied by pressure.

The inert gas supply 605 may generate an inert gas to be stored in the outer adiabatic space 304, and when the inert gas leaks into the outer adiabatic space 304, the inert gas supply 605 is used to determine the amount of leakage. Can be supplemented.

In addition, the inert gas supply 605 may be connected to the outer insulating space 304 through an inert gas supply line (not shown), and may be provided inside the fuel supply room 31 or above the upper deck 60. have. Here, the inert gas may be preferably nitrogen (N 2).

Hereinafter, with reference to FIG. 3 to describe the inert gas supply 605 will be described in detail. 3 is a cross-sectional view taken along line B-B` of the container carrier according to the embodiment of the present invention.

Inert gas supply 605, as shown in Figure 3, may be provided on each of the left and right sides of the stack 601, and is also installed in front of the vent mast 602 to the stack 601 and the vent mast 602. It can be positioned to be enclosed.

Although not shown here, the inert gas supply 605 may be provided in the gas fuel supply room 31. When the inert gas supply 605 is provided in the gas fuel supply room 31, it may be connected to the gas fuel supply unit 311 through an inert gas supply line (not shown), and specifically, liquefied gas supply It is connected to the line 3116 or the boil-off gas supply line 3117 to perform purging on the line.

In this case, since the inert gas supply 605 is located inside the gas fuel supply room 31, there is no need to provide a casing (not shown) of the inert gas supply 605, thereby reducing construction costs and simplifying structurally. There is an effect that can be done.

Inert gas supply 605 may be provided on both sides of the left and right sides of the stack 601, as shown in Figure 3, it is also installed in front of the vent mast 602 and surrounded by the stack 601 and the vent mast 602 Positioned so that it can be supported by the chimney 601 and the vent mast 602.

In this case, the inert gas supply 605 may further include a casing of the inert gas supply 605 to insulate the inert gas from the outside and prevent the inert gas from leaking to the outside.

Therefore, due to the provision of the casing, the inert gas supply 605 has an effect that can be securely fixed to the hull by the flue 601 and the vent mast 602.

The partial deck 32 is fixed by the transverse bulkhead structure 34, that is, the first transverse bulkhead structure 341 and the second transverse bulkhead structure 342, and the gas tank room 30 and the gas fuel supply room 31 are provided. To partition and support other devices provided in the gas fuel supply room 31, such as the gas fuel supply unit 311, to be located above the liquefied gas storage tank 300, that is, above the gas tank room 30.

Partial deck 32, the transverse bulkhead structure 34 is formed of a watertight type transverse bulkhead structure, so that the transverse bulkhead structure 341 and the second transverse bulkhead structure 342 extend transversely horizontally ( 32) to be securely fixed, whereby the parcel deck 32 is the components of the gas fuel supply unit 311 (pump 3110, heat exchanger 3112), compressor 3114, auxiliary compressor 3115 ), Gas valve train (GVT; 312), etc.).

In the parshal deck 32, the lower side facing the liquefied gas storage tank 300 is formed flat, so that the support 305 (preferably an anti-floating chock) is in contact with the liquefied gas storage tank 300. It can be made to exist between the partial decks 32. At this time, the parshal deck 32 may have a double hull (double hull) structure or reinforcement (not shown) therein to enhance durability, and a lodge member (not shown) at the lower side. It can form a number.

Thus, in the present invention, by providing the parcel deck 32, it is possible to effectively use the space while reducing the container loading of the container carrier (1), and by constructing the lower flat to strengthen the support of the gas fuel supply unit 311 It is possible to configure the support 305 between the liquefied gas storage tank 300 to help the liquefied gas storage tank 300 to be firmly supported by the hull 6.

In addition, by constructing the upper surface of the gas tank room 30 and the lower surface of the gas fuel supply room 31 flatly, the partial configuration of the gas fuel supply unit 311 is provided on the partial deck 32. It can be arranged to unfold.

That is, the parshal deck 32 may support the pump 3110, the heat exchanger 3112, the compressor 3114, etc. At this time, the pump 3110, the heat exchanger 3112, the compressor 3114, etc. It can be installed directly on the deck (32). That is, the pump 3110 and the heat exchanger 3112 are not placed on different layers, but all the configurations of the gas fuel supply unit 311 may be disposed on one layer called the partial deck 32.

In this case, the lower ends of the respective components of the gas fuel supply unit 311 may be placed on the same plane, or may be all connected to the upper surface of the partial deck 32, and the total height of the gas fuel supply room 31 is gas fuel It is sufficient that the highest configuration among the components included in the supply unit 311 is accommodated without a problem.

Therefore, the present invention can reduce the height of the gas fuel supply room 31, and has an effect of increasing the height of the gas tank room 30 as the height of the gas fuel supply room 31 is reduced. This means that the size of the liquefied gas storage tank 300 can be further secured, and accordingly, the present invention provides the liquefied gas storage tank in the container carrier 1 when the liquefied gas storage tank 300 is mounted on the container carrier 1. There is an effect that can reduce the load loss of the container (C) caused by the installation of (300) (because the height of the liquefied gas storage tank 300 can be sufficiently secured to reduce the length before and after the gas tank room (30) The effect that can reduce the width before and after the result is derived)

The high deck 33 is at least partially inclined to be angled to the hull angles of the left side 64 and the right side 65 of the hull 6, and a hatch cover 24 is provided above the cargo area 2 While provided, the upper side of the gas fuel zone 3 is arranged so that the high deck 33, not the hatch cover 24.

The high deck 33 may be a structure in which a chamfer (a box shape in which a space is formed inside) is formed, and a plurality of lodge members (not shown) may be formed on the lower side to enhance durability.

Specifically, the high deck 33 can divide the containers C and the gas fuel supply room 31, and the horizontal portion formed on the same line T2 as the uppermost line of the hatch cover 24 ( 33a), the horizontal portion (33a) and the auxiliary horizontal portion (33c) is connected to the inclined portion (33b) formed in a bent form, formed in parallel with the horizontal portion (33a) and the top line of the hatch coaming (23) and It may be composed of an auxiliary horizontal portion 33c formed on the same line T1.

Here, the auxiliary horizontal part 33c may use a girder (not shown, not shown in the figure, in the form of the number '7' in FIG. 7) which is installed on an existing ship, which is a structure capable of withstanding the most force, On the upper side, an additional support (not shown) for supporting the bunker station 604 may be further configured.

Here, the high deck 33 does not have the structures of the horizontal portion 33a, the inclined portion 33b, and the auxiliary horizontal portion 33c, which are the above structures, and simply hulls a flat member such as hatch covers 24. ) When welded by attaching to the left side 64 or right side 65, the container carrier 1 receives a structural torsional moment due to the six degrees of freedom, thereby making it a corner, i.e. a flat member and a hull 6 There is a fear that the durability of the portion to which the left portion 64 or the right portion 65 is connected is weakened, resulting in damage or leakage when damage occurs.

Accordingly, in the present invention, the high deck 33 is provided with an inclined portion 33b formed to be bent and bent to connect a step formed by the horizontal portion 33a and the auxiliary horizontal portion 33c, through which the high deck (33) is formed to be sharpened to the hull (6) to minimize the occurrence of structural torsional moments due to the six-degree of freedom movement of the ship and the high deck (33) and the left (64) or right (65) of the hull (65) ), It is possible to effectively prevent the concentration of stress in the portion to which it is connected, thereby improving the durability of the high deck 33.

In addition, in the present invention, as described above, the hatch cover 24 is provided on the upper side of the cargo hold 20, whereas the high deck 33 rather than the hatch cover 24 is disposed on the upper side of the gas fuel zone 3. Thus, it is possible to generate a greater sealing force than closing the gas fuel zone 3 with the hatch cover 24 and to improve the safety of the container carrier 1.

In the present invention, the upper side of the high deck 33 may be provided with a plurality of containers (C) or a bunker station 604 may be provided, wherein the bunker station 604 is further supported by a stool (Stool) 603 It can be securely fixed to the upper side of the high deck 33.

The transverse bulkhead structure 34 is provided with a first transverse bulkhead structure 341 at the rear, a second transverse bulkhead structure 342 at the front, and a first transverse bulkhead structure 341 and a second transverse bulkhead structure. Both structures 342 may be formed in a watertight transverse bulkhead structure.

The transverse bulkhead structure 34 securely accommodates the liquefied gas storage tank 300 and provides a safety device or safety means to protect the containers C or the engine 501 in the cargo hold 20 from the liquefied gas. shall.

To this end, in the embodiment of the present invention, both the first transverse bulkhead structure 341 and the second transverse bulkhead structure 342 are formed of a watertight transverse bulkhead structure, and at the same time, the ventilating device is attached to each transverse bulkhead structure 341,342. 343) may be configured to be connected, or in another embodiment, the first transverse bulkhead structure 341 may have at least a portion of a closed area, and the second transverse bulkhead structure 342 may be configured as a watertight transverse bulkhead structure.

Here, an insulating layer may be formed on each of the transverse bulkhead structures 341 and 342, and the insulating layer may be A-60, but is not limited thereto, and any material capable of effectively performing insulating may be possible.

The transverse bulkhead structure 34 is connected to one or two or more unit partition walls 341a and 341b or 342a or 342b and the unit partition walls 341a and 341b or 342a or 342b to receive strength by vertical or horizontal members. It is a structure that can be. One of each of the unit bulkheads 341a and 341b or 342a or 342b is a Watertight Bulkhead or Closed Bulkhead; 341b or 342b, and the other one is an Open Bulkhead or Structural Bulkhead; 341a or 342a.

The vertical member may serve as a longitudinal bulkhead or vertical web, and the horizontal member may serve as a deck.

First, both the first transverse bulkhead structure 341 and the second transverse bulkhead structure 342 are configured as a watertight transverse bulkhead structure, and at the same time, the ventilating devices 343 are connected to the respective transverse bulkhead structures 341 and 342. To describe the case, it will be described with reference to FIG. 4.

The first transverse bulkhead structure 341 may have an open portion 341a that is openly formed toward the engine room 50 and a watertight portion 341b that is closed and formed toward the gas tank room 30, and the second The transverse bulkhead structure 342 may have an open portion 342a that is openly formed toward the cargo area 20 and a watertight portion 342b that is closed and formed toward the gas tank room 30. Here, in the watertight parts 341b and 342b of the first transverse bulkhead structure 341 and the second transverse bulkhead structure 342, an insulating layer may be formed, and the insulating layer may be formed of A-60.

In this case, the first transverse bulkhead structure 341 may have a problem that the engine 501 cannot be protected from the liquefied gas stored in the liquefied gas storage tank 300 because there is no sealed space. By allowing the first transverse bulkhead structure 341 to be ventilated through the ventilating device 343 instead of the formation of the space, even if the liquefied gas leaks or leaks from the liquefied gas storage tank 300, leaked or leaked liquefied gas The engine 501, which is removed through ventilation, may be protected before the engine 501 is approached.

At this time, the ventilation performed in the first transverse bulkhead structure 341 may be ventilated together through a cargo hold (not shown) that accommodates the container C located in the engine zone 5, The second transverse bulkhead structure 342 may also be connected to the ventilating device 343 to perform ventilation.

In this way, both the first transverse bulkhead structure 341 and the second transverse bulkhead structure 342 are formed of a watertight transverse bulkhead structure, and at the same time, the ventilation devices 343 are connected to the respective transverse bulkhead structures 341 and 342. In case, the external devices (container (C), engine (501) or other equipment) are effectively used from the liquefied gas stored in the liquefied gas storage tank (300) through the ventilation of the first transverse bulkhead structure (341). Since it can be protected, the space utilization inside the vessel is maximized and the construction cost is reduced.

Next, in another embodiment, the first transverse bulkhead structure 341 has at least a portion of a closed area, and the second transverse bulkhead structure 342 is described with reference to FIG. 5 to describe a case where the watertight transverse bulkhead structure is configured. Do it.

The first transverse bulkhead structure 341 has an open portion 341a formed at least partially open and at least partially sealed to the engine room 50 side, and a watertight portion 341b sealed to the gas tank room 30 side. , May have an intermediate connection portion 341c that connects at least a portion of the open portion 341a to the hermetically formed portion and the watertight portion 341b to form a closed space.

At least a portion of the open portion 341a of the open portion 341a of the first transverse bulkhead structure 341 is open toward the cargo hold accommodating the container C located in the engine zone 5, and the first transverse bulkhead structure At least a part of the open portion 341a of the open portion 341a is formed to be sealed toward the engine room 50 of the engine zone 5.

At this time, the first transverse bulkhead structure 341, the intermediate connection portion 341c, at least partially sealed portion of the open portion 341a, the sealed portion of the watertight portion 341b, and the gas by the bottom portion 63 An airtight space is formed between the tank room 30 and the engine room 50, and even if the liquefied gas leaks or leaks from the liquefied gas storage tank 300, the leaked or leaked liquefied gas is the engine 501. ). Here, the portion in which the closed space is not formed in the first transverse bulkhead structure 341 is connected to the ventilating device 343 and is ventilated together with the cargo hold that accommodates the container C located in the engine zone 5. Share it.

The first transverse bulkhead structure 341 includes at least a portion of the watertight portion 341b facing the cargo hold accommodating the container C located in the engine zone 5, the intermediate connection portion 341c, and the open portion 341a. A heat insulating layer may be formed on a part of the part to be sealed, and the heat insulating layer may be formed of A-60. In addition, the heat insulating layer formed on the intermediate connection portion 341c may be at least partially formed by extending into a cargo hold accommodating the container C located in the engine zone 5.

The second transverse partition structure 342 may have an open portion 342a that is openly formed toward the cargo area 20 and a watertight portion 342b that is closed and formed toward the gas tank room 30. In the watertight portion 342b of the second transverse partition structure 342, an insulating layer may be formed, and the insulating layer may be formed of A-60. Here, the second transverse bulkhead structure 342 may also be connected to the ventilation device 343 to perform ventilation.

As described above, when at least a portion of the first transverse bulkhead structure 341 has an enclosed area and the second transverse bulkhead structure 342 is composed of a watertight transverse bulkhead structure, through the closed space of the first transverse bulkhead structure 341 It has an effect of effectively protecting external devices (container (C), engine 501 or other equipment) from liquefied gas stored in the liquefied gas storage tank 300.

The bunker station 604 is located above the gas fuel supply room 31 and is specifically provided above the high deck 33 (more preferably, provided above the load line of the hull 6). ), The bunkering is performed to the liquefied gas storage tank 300 through a bunkering device (not shown) provided therein. Here, the bunker station 604 is located above the gas fuel supply room 31, which is disposed above the gas tank room 30, so that the line connected to the liquefied gas storage tank 300 is reduced when bunkering. Is done.

The bunker station 604 is provided on the upper side of the high deck 33, the lower side of the bunker station 604 can be fixedly supported by the stool (Stool) 603 as well as the high deck 33, and the bunker station 604 ), The container C may be shipped.

The bunker station 604 is formed in a frame structure so that the container C can be shipped around it, and can be provided at the ends of the left side 64 and the right side 65 of the hull 6, respectively. It may be formed to be surrounded by (C).

The bunker station 604 is composed of a side of the bunker station 604, an upper surface of the bunker station 604, a side surface of the bunker station 604, a lower surface of the bunker station discharge unit 604a, which is a surface configured to be opened to the outside, inside A space for accommodating bunkering devices and equipment may be formed. Here, the size of the bunker station 604 is shown as six sizes of the container C, but this is only an example and may be manufactured by elastically changing according to the size of the ship or the capacity of the container C.

The bunker station discharge part 604a is opened in the left direction in the left part 64 of the hull 6 or in the right direction in the right part 65 of the hull 6, and the gas or inside stagnant inside the bunker station 604 It is possible to discharge the gas flowing.

Specifically, the bunker station discharge unit 604a, when the bunker station 604 is provided at the end of the left portion 64 of the hull 6 may be formed to open in the left direction of the hull 6, the bunker station When 604 is provided at the end of the right portion 65 of the hull 6, it may be formed to open in the right direction of the hull (6). Here, even if one side of the bunker station 604 is formed to be open, the bunker station 604 is positioned above the full water line of the hull 6, so that the problem of inflow of seawater does not occur at the time of bunkering.

The bunker station discharge unit 604a is formed to be opened to the outside of the hull 6 and can discharge gas flowing inside the bunker station 604 or gas stagnant therein. Here, the gas flowing inside the bunker station 604 or the gas stagnant therein does not need to have a separate ventilating device, and the above gas fuel supply room 31 or tank connection room 310, backup room 35 ) May be circulated and discharged to the outside by hitting the upper surface of the bunker station 604, the side surface of the bunker station 604, etc. by receiving the force that the inside air is vented.

Here, the internal air circulation mechanism of the bunker station 604, the air vented from the inside of the gas fuel supply room 31 has a very strong force, so that it hits the upper surface of the bunker station 604, and the bunker station 604 The air hit the upper surface of the Bunker Station 604 moves to the side (opposite side opposite to the hull 6 direction from the Bunker Station discharge section 604a) and then hits again to move to the Bunker Station discharge section 604a. The internal air circulation of the bunker station 604 is made.

The lower surface of the bunker station 604 may be provided below the bunker station 604 and may have a frame structure having a skeleton formed at an edge or a plate shape having an area. When the lower surface of the bunker station 604 has a frame structure having a skeleton at the corner, it may be closed indirectly by the high deck 33.

The lower surface of the bunker station 604 faces the high deck 33 and can be fixed to the hull 6 by the high deck 33, and the hull of the Passage Way (P) or the left side 64 of the hull 6 It can be fixed to the hull by receiving additional support by a stool 603 provided on the upper side of the hull of the hull 6 or the right side 65 of the hull 6. In addition, it may be further fixed by an additional support installed on the auxiliary horizontal portion 33c of the high deck 33.

The stool 603 is provided with at least one high deck on the upper side of the Passage Way (P) or the hull of the left part 64 of the hull 6 or the hull of the right part 65 of the hull 6 The bunker station 604 can be supported with 33.

In addition, the lower surface of the bunker station 604 may include a gas fuel supply room discharge part 314, and the gas fuel supply room discharge part 314 is provided with a separate device (fan) to supply gas fuel. The positive pressure or negative pressure may be applied to the gas or stagnant gas flowing in the room 31 or the tank connection room 310 to be discharged into the bunker station 604.

The side surface or the top surface of the bunker station 604 may be provided on the side surface of the bunker station 604 and have a frame structure having a skeleton formed at an edge or a plate shape having an area. If the side of the bunker station 604 has a frame structure having a skeleton at the corner, it may be closed indirectly by the container C.

As described above, the bunker station 604, the gas flowing inside the bunker station 604 or the gas that circulates the stagnant gas inside and vents the gas to the outside, the gas fuel supply room 31 or the tank connection room 310 The internal air circulation device (ventilation device) of the gas fuel supply room 31, the tank connection room 310, or the bunker station 604 is shared by sharing the force of the gas flowing inside or the stagnant gas being vented. It can be implemented, which simplifies the ventilating structure and reduces the venting space, thereby increasing the usable space.

The diesel fuel zone 4 may be provided in the interior space of the lower hull 6 of the cabin 600 and between the cargo zones 2 located close to the bow 62 direction, and the diesel tank room 40. And a machine room (not shown). However, here, the machine room is equipped with various mechanical devices such as a control room (not shown) that controls other equipment required for the container carrier 1, machines or electronic devices provided in the container carrier 1, and the diesel tank room ( 40) may be separated by a separate partition wall, and may be disposed inside the cabin 600 or in a separate space, not the diesel fuel zone 4.

Specifically, in the diesel fuel zone 4, the front and rear are watertight transverse bulkhead structures 21, and the left and right sides are the left side 64, the right side 65 and the hatch coaming 23 of the hull 6, and the upper side is the cabin. (600), the lower side is formed surrounded by the bottom portion 63, the space in which the diesel fuel zone (4) is arranged, a space of half the space of the cargo hold 20, that is, a space of the same or similar size as one bay Can be Here, the watertight transverse bulkhead structure 21 may be formed in the same structure as the transverse bulkhead structure 34 described as a watertight transverse bulkhead structure.

The diesel fuel zone 4 may include a diesel tank room 40 accommodating the diesel tank 401. The diesel tank room 40 stores diesel fuel and may occupy the same or similar space as the diesel fuel zone 4, and when the machine room is disposed in the diesel fuel zone 4, it is partitioned by a separate bulkhead. It can be located below the machine room. Here, the diesel fuel may be MDO, HFO, etc. as oil, but is not limited thereto.

The diesel fuel zone 4 can receive a diesel fuel line 402 to deliver diesel fuel from the diesel tank 401 to the engine 501, and the diesel fuel line 402 is a ship bottom 63 It is provided in the interior space of the hull (Hull) located in the diesel fuel zone (4) can be formed extending from the engine zone (5).

Since the diesel fuel line 402 is provided in the inner space of the hull located at the bottom portion 63, it is possible to significantly reduce the reduction in container loading, thereby significantly improving the container transport rate of the container carrier 1 There is an effect that can protect the diesel fuel line 402 from the outside.

The engine zone 5 may include an engine room 50 and a cargo hold, and the cargo hold may be arranged to be located in a recessed portion of the engine room 50.

The engine room 50 is provided in front of a propulsion device (not shown) provided in the stern portion 61 and is connected to the propulsion device, and transmits power to the propulsion device to generate propulsion power. A gas valve unit (GVU) 503 for controlling fuel supplied to the auxiliary engine 502 and the auxiliary engine 502 to transmit power to other devices (such as a power unit or a power generator) by consuming evaporated gas may be accommodated. You can. At this time, the engine 501 may be a high pressure gas injection engine (MEGI) and the auxiliary engine 502 may be DFDG.

The engine room 50 may be formed in the shape of a 'b' in which one side is recessed, and a cargo hold may be provided in the recessed portion, so that a plurality of containers C may be disposed, and the engine room 50 and The space in which the cargo hold is arranged may be a space of the same or similar size to the two bays.

The engine room 50 is provided with a stack 601 and a vent mast 602 on the upper side, and exhaust gases generated by burning fuel in the engine 501 or other gases accumulated inside the engine room 50 are external. Can be discharged.

The engine 501 is driven by receiving fuel from the liquefied gas storage tank 300 or the diesel tank 401 to generate power. Specifically, the engine 501 is supplied with liquefied gas or evaporated gas from the liquefied gas storage tank 300, or diesel fuel from the diesel tank 401 (preferably oil such as HFO or MDO, hereinafter, diesel fuel) It can be used interchangeably.) As it is supplied as fuel, it can generate power, and as the piston (not shown) inside the cylinder (not shown) reciprocates by combustion of fuel, it is connected to the piston. The crankshaft (not shown) can be rotated, and the shaft (not shown) connected to the crankshaft can be rotated.

Accordingly, when the engine 501 is driven, the container carrier 1 may move forward or backward as the propeller (not shown) connected to the propeller shaft (not shown) rotates.

The engine 501 may be a heterogeneous fuel engine in which boil-off gas and oil are not mixed and supplied, but boil-off gas or oil is selectively supplied. The heterogeneous fuel engine is selectively supplied with boil-off gas or oil as described above to prevent two materials having different combustion temperatures from being mixed and supplied, thereby preventing the efficiency of the engine 501 from falling. That is, the engine 501 is not limited to the above-described exemplary engine, and may be an engine for propulsion that can be driven by receiving liquefied gas, evaporated gas, and oil.

Here, the engine 501 may be connected to the diesel tank 401 through the diesel fuel line 402 in order to receive oil from the downward direction, and the diesel connection line 402 does not need to have a ventilating structure, so that a single tube It can have a structure and can be installed in the interior space of the hull located at the bottom 63 from the diesel fuel zone 4 to the engine zone 5 to transfer diesel fuel to the engine 501.

The auxiliary engine 502 uses evaporated gas supplied from the liquefied gas storage tank 300 as fuel. That is, the auxiliary engine 502 requires evaporation gas and can be driven using it as fuel. The auxiliary engine 502 may be a generator (eg, DFDG) or a boiler (eg, a boiler that generates steam), but is not limited thereto.

In addition, the auxiliary engine 502 may be disposed above the provided position of the engine 501.

The gas valve unit (GVU) 503 can control the flow rate of the evaporated gas or liquefied gas supplied to the auxiliary engine 502. Here, the gas valve unit 503 implements the flow of boil-off gas or liquefied gas, and is classified as a dangerous zone on the zone, and may be required to be sealed when located in a safe zone.

Therefore, if the gas valve unit 503 or the like is provided in the engine room 50 which is a safety zone, the gas valve unit 503 is required to be provided in a separate closed space. By the way, the gas valve unit 503 is intended to stably supply a flow rate of evaporation gas or the like to a consumer or a boiler, that is, an auxiliary engine 502, that is, a consumer that consumes fuel at a lower pressure than the engine 501. Since the flow rate of the 502 may be elastically varied according to the load, when the gas valve unit 503 and the auxiliary engine 502 are far apart, there is a problem that it is difficult to adequately cope with the load fluctuation of the auxiliary engine 502.

Accordingly, the gas valve unit 503 is located inside the engine room 50 in order to be located adjacent to the auxiliary engine 502, and is sealed and provided in a room shape. When the gas valve unit 503 is located in the safety zone (in this case, the engine room 50), the gas valve unit 503 is sealed and filled with an inert gas (filled) through an inert gas supply 605 therein. It may be necessary to implement a periodic circulation with filling of a gas such as air (which may be an inert gas) or inert gas does not occur).

In this case, referring to FIG. 11, when the gas valve unit 503 has a circulation structure, gas such as air may be supplied through the auxiliary engine 502.

An evaporation gas supply line 3117 may be provided to the auxiliary engine 502 through the gas valve unit 503. The evaporation gas supply line 3117 may supply evaporation gas or the like to the auxiliary engine 503 (such as a piston). Supply. At this time, the boil-off gas supply line 3117 may have a double-hull pipe structure to prevent leakage of boil-off gas and the like.

At this time, the inside of the boil-off gas supply line (3117) having a double pipe structure, the boil-off gas and the like flow, the outside may be supplied with air, etc., the air supplied to the outer shaft in the boil-off gas supply line (3117), gas It can be delivered to the valve unit 503. That is, the outside of the double pipe structure of the boil-off gas supply line (3117) can be communicated with the inside of the gas valve unit (503), the air supplied to the liquefied gas supply line (3116) or the boil-off gas supply line (3117), etc. The circulation of the gas valve unit 503 may be implemented by being delivered to the gas valve unit 503.

Cargo hold, may be provided in a plurality of containers (C) is disposed in the recessed portion of the engine room 50, may have a ventilation (Ventilation) structure for circulating the gas inside the engine room 50, , It may be provided smaller than the space of the above-mentioned one bay. This is in order to meet the purpose of the container carrier 1 and to effectively use the inner space of the hull 6. (Effective use of the inner space in the container carrier 1 means container C, which is the purpose of the container carrier 1) It means loading as many containers (C) as possible in the interior space for transportation)

The engine zone 5 should be a safety zone, while the gas fuel zone 3 corresponds to a danger zone, and thus, the characteristics of the engine zone 5 and the gas fuel zone 3 are described above. It should be isolated from each other by the partition structure (34). In addition, when the liquefied gas supply line 3116 or the boil-off gas supply line 3117 penetrates, the cargo hold of the engine zone 5 is penetrated, so that a decrease in container loading occurs.

In order to solve this problem, in the present invention, the cargo hold of the engine zone 5 is in the stern direction on the upper left or upper right of the gas fuel supply room 31 (gas fuel supply room of the gas fuel zone 3). (31) bypassing the first transverse bulkhead structure 341 in the cargo hold direction of the engine zone 5 to penetrate the hatch coaming 23) Liquefied gas supply line 3116 or evaporated gas supply line 3117 The liquefied gas supply line 3116 or the evaporated gas supply line 3117 is vertically lowered through the electric space that passes through the horizontal, and is then disposed at the left or right end on the cargo hold of the engine zone 5. Through it may be connected to the gas valve unit (GVU) 503 or the auxiliary engine 502. In this case, the cargo hold of the engine zone 5 is a space (preferably an electric device) in which the container C is not loaded for at least a portion of the liquefied gas supply line 3116 or the evaporated gas supply line 3117. Room (Electric Space) can be provided.

Therefore, the liquefied gas supply line 3116 or the boil-off gas supply line 3117 is to pass through the left or right end direction of the uppermost side of the first transverse bulkhead structure 341, so that the engine zone 5 and the gas fuel zone ( It has the effect of increasing the sealing force of 3) and reducing the decrease in container loading.

As described above, in the embodiment of the present invention, when the liquefied gas supply line 3116 or the evaporated gas supply line 3117 is connected to the engine 501 or the auxiliary engine 502 from the gas fuel supply unit 311, the engine zone 5 ) Through the space provided in at least a part of the cargo hold, the container (C) reduces the load reduction, it is possible to effectively use the space.

Normally, the liquefied gas supply line 3116 and the evaporated gas supply line 3117 need to have a ventilation or double sealing structure to protect external devices at all times due to the cryogenic properties of the liquefied gas. There is a difference in that it occupies more than the space of the portion where the fuel line 402 is formed, and as a result, the more space the liquefied gas supply line 3116 and the evaporated gas supply line 3117 are installed, the more the container C The space that can accommodate is reduced.

Accordingly, the container carrier 1 according to the present invention is liquefied by placing the gas fuel zone 3 in front of the engine zone 5 and between the diesel fuel zone 4 and the engine zone 5. The installation space of the gas supply line 3116 and the boil-off gas supply line 3117 was minimized to minimize the container loading reduction, and the diesel fuel zone 4 was placed below the cabin 600 to further minimize the container loading reduction. It has the effect. At the same time, by using liquefied gas and diesel fuel (oil) as the propulsion fuel, it is possible to provide a flexible supply of propulsion fuel, thereby improving transportation reliability.

In this case, the container carrier 1 may have a feature that the hull 6 has a 2island structure. (2island structure is a structure in which the cabin 600 and the chimney 601 protrude on the upper side of the upper deck 60, that is, the upper deck. (60) The structure that looks like two islands by protruding two structures on the upper side.)

In addition, the container carrier 1 may be a cabin 600, a stack 601, a vent mast 602 and a propulsion device (not shown).

Cabin 600 is installed higher than the container (C) stacked in front of the cabin 600, in order to secure the operating field, the containers (C) provided in front of the cabin 600, the cabin 600 It can be stacked only to the extent that the field of view can be secured.

The flue 601 is provided on the upper side of the engine zone 5 to discharge high-temperature exhaust gas discharged from the engine 501 to the outside, and the vent mast 602 is provided on one side of the rear of the flue 601 Other gases and gases inside the hull 6 can be discharged to the outside.

The propulsion device may transmit power generated from the engine 501 to a propeller through a propeller shaft, generate propulsion through rotational force generated by the propeller, and move the container carrier 1 with the generated propulsion.

Although the present invention has been described in detail through specific examples, the present invention is specifically for describing the present invention, and the present invention is not limited to this, and by a person skilled in the art within the technical spirit of the present invention. It will be apparent that the modification or improvement is possible.

All simple modifications or changes of the present invention belong to the scope of the present invention, and the specific protection scope of the present invention will be clarified by the appended claims.

1: Container carrier 2: Cargo area
3: Gas fuel zone 4: Diesel fuel zone
5: engine zone 6: hull
20: Cargo hold 21: Watertight transverse bulkhead structure
22: open transverse bulkhead structure 23: hatch coaming
24: hatch cover 30: gas tank room
31: gas fuel supply room 32: Partial Deck
33: High Deck 34: Transverse bulkhead structure
35: backup room 40: diesel tank room
50: engine room 60: upper deck
600: cabin 601: chimney
602: Bent mast 603: Stool
604: bunker station 604a: bunker station discharge
605: inert gas supply

Claims (7)

hull;
A tank room accommodating a liquefied gas storage tank for storing gas fuel;
An engine room accommodating a propulsion engine providing propulsion power to the hull;
A fuel supply room that supplies the gas fuel to the engine and is formed above the tank room;
A transverse bulkhead structure provided between the engine room and the tank room; And
It is formed at a position facing the fuel supply room on an upper side in the engine room, and includes a cargo hold formed to be sealed from the engine room,
In the fuel supply room,
A first gas control unit is provided to control fuel supplied to the propulsion engine,
A gas fuel propulsion container carrier, characterized in that the first gas control unit is formed to be further isolated from the engine room while being isolated by the fuel supply room through the transverse bulkhead structure and the cargo hold. According to claim 1,
A power generation engine provided in the engine room to generate electricity; And
Further comprising a second gas control unit for controlling the fuel supplied to the power generation engine,
The second gas control unit,
Gas fuel propulsion container carrier, characterized in that provided in the engine room. According to claim 1, The first gas control unit,
Gas fuel propulsion container carrier, characterized in that ventilation is performed together with the fuel supply room. The method of claim 2, wherein the second gas control unit,
Gas fuel propulsion container carrier, characterized in that the ventilation is performed independently of the engine room. The method of claim 4, wherein the second gas control unit,
Gas fuel propulsion container carrier, characterized in that formed to be surrounded by a casing isolated from the engine room. The method of claim 5, wherein the second gas control unit,
Gas fuel propulsion container carrier, characterized in that the ventilation is performed with the power generation engine. The method of claim 6,
Further comprising a supply line connecting the second gas control unit and the power generation engine,
The supply line,
Gas fuel propulsion container carrier, characterized in that the inner side is configured to flow fuel supplied to the power generation engine, and the outer side is configured to flow a circulating gas to ventilate.

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