KR101784067B1 - A Treatment System Of Gas - Google Patents

Abstract

A gas treatment system according to an embodiment of the present invention includes a tank room for receiving a liquefied gas storage tank; A fuel supply chamber provided on the upper side of the tank room to receive a fuel supply unit for processing the fuel stored in the liquefied gas storage tank; A backup room separate from the fuel supply room to form a separate space; A compressor provided in the fuel supply room for processing evaporative gas generated in the liquefied gas storage tank; And an auxiliary compressor disposed in the backup room for processing the evaporative gas when the compressor malfunctions or stops, wherein the auxiliary compressor is configured to process the evaporative gas when the compressor malfunctions or stops, And the internal pressure of the tank is adjusted.

Description

[0001] A Treatment System Of Gas [0002]

The present invention relates to a gas treatment system.

A ship is a means of transporting large quantities of minerals, crude oil, natural gas, or more than a thousand containers. It is made of steel and buoyant to float on the water surface. ≪ / RTI >

Such a ship generates thrust by driving the engine. At this time, the engine uses gasoline or diesel to move the piston so that the crankshaft is rotated by the reciprocating motion of the piston, so that the shaft connected to the crankshaft is rotated, .

However, when heavy oil such as HFO or MFO is used as propellant fuel, environmental pollution due to various harmful substances contained in exhaust gas is serious when burning heavy oil, etc., and regulations on environmental pollution are strengthened, The regulations on propulsion devices using fuel oil are also strengthened, and the cost for satisfying these regulations is gradually increasing.

Accordingly, instead of using heavy oil or using only a minimum amount of fuel as a fuel for a ship, it is possible to replace gasoline or diesel with liquefied natural gas, liquefied petroleum gas The same liquefied gas is used and the technology is being developed.

Liquefied natural gas is a liquefied natural gas that is obtained by refining natural gas collected from a gas field. It is a colorless and transparent liquid with almost no pollutants and high calorific value. On the other hand, liquefied petroleum gas is a liquid fuel made by compressing gas containing propane (C3H8) and butane (C4H10), which come from oil in 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 use.

Such liquefied gas is stored in a liquefied gas storage tank installed on the ground or stored in a liquefied gas storage tank provided in a ship which is a means of transporting the ocean. The liquefied natural gas is liquefied to a volume of 1/600 The liquefaction of liquefied petroleum gas has the advantage of reducing the volume of propane to 1/260 and the content of butane to 1/230, resulting in high storage efficiency.

These liquefied gases are supplied to various customers and used. Recently, LNG carrier that uses LNG as fuel for LNG carriers that transport liquefied natural gas has been developed. Attempts have been made to apply this method to other vessels other than LNG carriers.

In addition, efforts are also being made to improve fuel efficiency, reduce emissions, and improve operational efficiency through the use of liquefied gas engines in container carriers.

The present invention has been made to improve the conventional technology, and is intended to provide a container carrier capable of propelling LNG fuel.

A gas treatment system according to the present invention comprises a tank room for containing a liquefied gas storage tank; A fuel supply chamber provided on the upper side of the tank room to receive a fuel supply unit for processing the fuel stored in the liquefied gas storage tank; A backup room separate from the fuel supply room to form a separate space; A compressor provided in the fuel supply room for processing evaporative gas generated in the liquefied gas storage tank; And an auxiliary compressor disposed in the backup room for processing the evaporative gas when the compressor malfunctions or stops, wherein the auxiliary compressor is configured to process the evaporative gas when the compressor malfunctions or stops, And the internal pressure of the tank is adjusted.

Specifically, the auxiliary compressor can process the evaporated gas and supply it to the boiler or the DFDG.

Specifically, a customer who consumes fuel or auxiliary fuel; And an auxiliary tank for storing the auxiliary fuel, wherein the consumer can consume the auxiliary fuel by receiving the auxiliary fuel stored in the auxiliary tank when the compressor malfunctions or stops.

Specifically, the auxiliary fuel may be HFO or MDO.

Specifically, the liquefied gas may be liquefied natural gas (LNG), and the auxiliary compressor may be an LD (Low Duty) compressor.

Specifically, a customer who consumes the fuel; A pump provided in the fuel supply room for pressurizing the liquefied gas stored in the liquefied gas storage tank; And an auxiliary pump provided in the backup room to pressurize the liquefied gas when the pump malfunctions or stops.

Specifically, when the pump malfunctions or stops, the customer may receive and process the fuel treated through the auxiliary pump, and the auxiliary compressor may process the evaporated gas and supply the treated fuel to the boiler or the DFDG.

The container carrier according to the present invention uses an engine that uses liquefied gas as fuel instead of gasoline or diesel, so that fuel consumption is increased, exhaust gas emission is reduced, and operational efficiency is improved.

In the gas processing system according to the present invention, the auxiliary fuel processing device capable of backing up the fuel processing device is provided so as to be isolated from the fuel processing device accommodating portion, so that the auxiliary fuel processing device can be safely operated Thereby improving the reliability of the fuel treatment apparatus and increasing the safety of the ship.

1 is a cross-sectional view of a container carrier according to an embodiment of the present invention.
2 is a cross-sectional view of the container carrier according to an embodiment of the present invention.
3 is a BB` sectional view of a container carrier according to an 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 in accordance with 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 an AA 'cross-section of a container carrier according to an embodiment of the present invention.
8 is a conceptual view of a container carrier according to an embodiment of the present invention.
Figure 9 is a top view of a container carrier gas fueling chamber according to an embodiment of the present invention.
FIG. 10 is a conceptual illustration of ventilation of a container carrier gas fueling chamber according to an embodiment of the present invention.
11 is a conceptual view showing the structure of the engine room and the gas valve unit of the container carrier of the present invention.

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

FIG. 1 is a cross-sectional view of a container carrier according to an embodiment of the present invention, FIG. 2 is an AA 'sectional view of a container carrier according to an 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, and Fig. 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.
1 to 5, a container carrier 1 according to an embodiment of the present invention includes a cargo zone 2, a gas fuel zone 3, a diesel fuel zone 4, an engine zone 5, (6).
Hereinafter, the container carrier 1 according to the embodiment of the present invention will be described with reference to FIGS. 1 to 5. FIG.

The container transportation line 1 is a container transportation line 1 for transporting the container C from the departure place to the unloading place. Here, the container carrier (1) is a large container carrier having a stacking capacity of 14,500 TEU or more and has a operating capability of 12,000 NM or more.
The container carrier 1 may include a plurality of cargo holds 20 and other devices within the hull 6 below the upper deck 60. More specifically, A gas fueling zone 3 for receiving a gas fueling chamber 31 and a cargo zone 2 for accommodating a plurality of containers C, Wherein each of the cargo section 2, the gas fuel section 3, the diesel fuel section 4 and the engine section 5 has a transverse bulkhead structure, (The watertight transverse bulkhead structure 21, the open transverse bulkhead structure 22, the transverse bulkhead structure 34, etc.).
Here, the transverse bulkhead structure is a structure that can receive strength by connecting one or two or more unit transverse bulkheads with the unit transverse bulkheads by a vertical or horizontal member. Each unit transverse bulkhead may be a watertight transverse bulkhead or a closed transverse bulkhead or an open transverse bulkhead or a structural transverse bulkhead and the vertical member may be a longitudinal bulkhead or a vertical web, , And the horizontal member can serve as a deck.

The cargo area 2 may include a plurality of cargo holds 20.
The cargo hold 20 includes two bays, and each of the bays has a container C stacked thereon. Each bay is provided with an open BHD structure 22 between two watertight transverse bulkhead structures 21 provided on both sides of the cargo hold 20 to form two open cargo hold structures 20 Bays are formed.
The watertight transverse bulkhead structure 21 has a structure in which one side is closed and the other side is opened, and the open transverse bulkhead structure 22 has a structure in which one side and the other side are both opened.
Specifically, the watertight transverse bulkhead structure 21 is a structure that connects one or two or more unit bulkheads with each other through a vertical or horizontal member. One of the unit bulkheads is a watertight bulkhead Or closed bulkhead), and the remaining unit bulkhead is composed of an open bulkhead or a structural bulkhead. Here, the vertical member may be a longitudinal bulkhead or a vertical web, and the horizontal member may serve as a deck.
The open transverse bulkhead structure 22 is identical in structure to the watertight transverse bulkhead structure 21 except that all of the unit bulkheads are comprised of open bulkheads or structural bulkheads.
The cargo hold 20 has a watertight transverse bulkhead structure 21 on the front and rear sides, a left side portion 64, a right side portion 65 and a hatch coaming portion 23 of the hull 6 on the left and right sides, A hatch cover 24 provided on the hatch coam 23, and a lower side surrounded by the bottom portion 63.
The bottom part 63, the left part 64 and the right part 65 may be in the form of a double partition having a space formed therein in the form of a hull, and the ballast water, which stores the ballast water of the ship, Water storage chamber. However, at least a part of the bottom portion 63 may include a diesel fuel line 402 through which the diesel fuel flows, and the details thereof will be described later.

The gas fuel zone 3 can be located in front of the engine zone 5 and can accommodate the gas tank room 30 and the gas fuel supply room 31 and can be provided by a partial deck 32, The gas tank room 30 and the gas fuel supply room 31 can be partitioned into the zone 3.
The gas fuel zone 3 has front and rear transverse bulkhead structures 34 (the front is the second transverse bulkhead structure 342 and the rear is the first transverse bulkhead structure 341) The lower side of the high deck 33 is surrounded by the bottom bottom portion 63 and the space in which the gas fuel zone 3 is disposed is defined by the cargo hold (the left side portion 64 and the right side portion 65) 20, that is, the space occupied by the first bay 20a or the second bay 20b may be the same or similar size as the space occupied by the first bay 20a or the second bay 20b. Here, the transverse bulkhead structure 34 may be formed as a watertight transverse bulkhead structure.
The internal space of the gas fuel zone 3 includes a gas tank room 30 provided with a liquefied gas storage tank 300 below the passive deck 32 and a gas fuel supply unit 311 provided at an upper side thereof A bunker station 604 and a plurality of containers C may be disposed on the upper side of the high deck 33 formed on the upper side of the gas fuel zone 3.

The gas tank room 30 includes a bottom portion 63 below the partial deck 32 on the upper side, a second transverse bulkhead structure 342 on the front side, a first transverse bulkhead structure 341 on the rear side, The liquefied gas storage tank 300 and the liquefied gas storage tank 300 are surrounded by the left side portion 64 and the right side portion 65 of the liquefied gas storage tank 300, It is possible to receive the support 305 for supporting. The gas tank room 30 may be formed to occupy 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. FIG.
FIG. 7 is a detailed view of an AA 'section of a container carrier according to an embodiment of the present invention, and FIG. 8 is a conceptual view of a container carrier according to an embodiment of the present invention.

The liquefied gas storage tank 300 stores the liquefied gas to be supplied to the engine 501, and may be a B-type tank as a stand-alone storage tank. Of course, the liquefied gas storage tank 300 is not limited to the independent storage tank, but may be various storage tanks (membrane type, pressurized type, etc.).
Specifically, the liquefied gas storage tank 300 is provided below the gas fuel supply chamber 31 and is partitioned by the passive deck 32 from the gas fuel supply chamber 31 and the upper side is supported by the support 305, The floating choke is located below the partial deck 32 and the lower side is fixed to the bottom bottom B of the bottom part 63 by the support 305 and can be supported in the gas tank room 30. [
Here, the liquefied gas storage tank 300 is formed such that the upper side thereof facing the passive deck 32 is flat and the support 305 (anti-floating choke) exists between the liquefied gas storage tank 300 and the partial deck 32 . That is, the liquefied gas storage tank 300 can be provided with an anti-floating choke, which is a supporter 305 between the liquefied gas storage tank 300 and the passive deck 32.
The liquefied gas storage tank 300 has a longitudinal length in the front-rear direction of the first bay 20a or the second bay 20b, Direction length of the hull 6 and may have a lateral length between a position within about 11.5 m or more than about 5.22 m from each of the left side portion 64 or the right side portion 65 of the hull 6, And a portion corresponding to the bench portion 307 of the outer wall of the storage tank 300 has a recess portion (not shown) recessed inward.
Here, the length of the liquefied gas storage tank 300 in the longitudinal direction and the lateral direction will be described in detail with reference to FIG.
6 is a DD` cross-sectional view of a container gas fuel zone according to an embodiment of the present invention.
6, the liquefied gas storage tank 300 is configured such that the front shell 300a and the rear shell 300b are disposed between the first transverse bulkhead structure 341 and the second transverse bulkhead structure 342, The left side shell 300c or the right side shell 300d has a longitudinal length in the space between the transverse bulkhead structure 341 and the second transverse bulkhead structure 342 so that the left side shell 64 (Preferably disposed at a distance from the left side portion 64 or the right side portion 65 of the hull 6 by a distance of A 1) between B1 and A1 at the portion 65 and is located at the left side portion 64 of the hull 6, And the right side portion 65 in the left-right direction.
The distance from the left side portion 64 or the right side portion 65 of the hull 6 to B1 corresponds to about 11.5 m or the width 5 of the hull 6 and the distance from the left side portion 64 or the right side portion 65 ) To A1 may be about 5.22 m.

The liquefied gas storage tank 300 may include a dome 306 as a connection part for discharging the liquefied gas or the evaporated gas stored in the liquefied gas supply line 3116 or the evaporation gas supply line 3117.
The liquefied gas storage tank 300 is connected to the liquefied gas supply line 3116 or the evaporation gas supply line 3117 to supply the liquefied gas or the evaporated gas as the fuel to the engine 501 Or the auxiliary engine 502 to the liquefied gas storage tank 300 so that the liquefied gas supply line 3116 or the evaporation gas supply line 3117 is connected to the liquefied gas storage tank 300, A dome 306, which 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 liquefied gas or evaporative gas, which is an opening formed by the opening, is initially introduced or finally discharged into the liquefied gas storage tank 300 And a dome side surface (not shown) formed to extend from the dome bottom surface to a dome bottom surface (not shown) formed on the bottom surface of the dome.
The dome 306 is formed so as to pass through the passive deck 32 and the surface facing the facail deck 32 is sealed by the seal portion 3061 so that the gas tank chamber 30 and the gas fuel supply chamber 31 ) Are not communicated with each other. The seal portion 3061 has an effect of strengthening the sealing of the gas fuel supply chamber 31 and is made of an elastic material and preferably rubber so as to prevent the expansion or contraction of the dome 306 or the passive deck 32 There is an effect of alleviating the impact between them.
The top surface of the dome 306 is disposed in the gas fuel supply chamber 31 to be described later and connected to a tank connection room 310 to be described later. The bottom surface of the dome 306 is disposed in the gas tank room 30, (300), and at least a part of the side surface of the dome may be arranged in the gas fuel supply chamber (31). That is, at least a part of the top surface of the dome and the side surface of the dome can be disposed on the upper side of the passive deck 32, that is, inside the gas fuel supply room 31.
Thus, in the present invention, the top surface of the dome is disposed in the gas fuel supply chamber 31 and at least a part of the dome side surface is disposed in the gas fuel supply chamber 31, The supply line 3116 and the evaporation gas supply line 3117, and the like) and to help create an environment that is easy to work with.
The liquefied gas storage tank 300 may include an inner heat insulating space 301, a barrier layer 302 and a heat insulating layer 303 and an outer heat insulating space 304.
A gap may exist between the barrier layer 302 and the heat insulating layer 303. The gap may be a space in which the leaked liquefied gas flows when the leakage of the liquefied gas finally flows to the drip tray . ≪ / RTI > These gaps are used as the inner heat insulating space 301, and inert gas such as nitrogen, oxygen containing a certain percentage of oxygen or oxygen-free air can be continuously supplied to the inner heat insulating space 301. That is, in the inner heat insulating space 301, additional heat can be realized between the barrier layer 302 and the heat insulating layer 303 as the inert gas flows.
The inside heat insulating space 301 can maintain the state where the inert gas is filled while the outside heat insulating space 304 is kept filled with the inert gas. That is, the inert gas is continuously flowed from the inside to the outside through the inert heat insulating space 301, and the inside heat insulating space 301 is dried through a low-humidity or moisture-free inert gas The generation of condensed water can be suppressed and the heat insulating performance can be enhanced. On the other hand, the outer heat insulating space 304 may be filled with an inert gas to maintain a sealed 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 insulating space 301. The inner inert gas supply line may supply an inert gas from the outside of the inner heat insulating space 301 to the inner heat insulating space 301 and may be provided to penetrate the upper surface of the gas tank room 30. [ The inner inert gas discharge line can transfer the inert gas from the inner heat insulating space 301 to the outside of the inner heat insulating space 301 (which can be connected to the vent mast 602 or the like) And may be provided to pass through 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, (301) and then discharged.
A leak gas sensor (not shown) for detecting whether or not the liquefied gas has leaked from the inner heat insulating space 301 may be placed at or near the point where the inner inert gas discharge line is connected. That is, the leakage in the inner heat insulating space 301 is detected by a leak gas sensor and / or is connected to a leakage gas sensor (not shown) connected to the outer heat insulating space 304 through a sampling line (not shown) Lt; / RTI > The leakage gas sensor for detecting leakage of the inner heat insulating space 301 may be a sensor for detecting whether or not the leakage is electrically occurred. On the other hand, the leak gas sensor connected to the outer heat insulating space 304 may be a sensor of a type that detects chemically leakage. In this case, the accuracy may be higher for the leak gas sensor corresponding to the outer heat insulating space 304 than the leak gas sensor corresponding to the inner heat insulating space 301.
The barrier layer 302 is provided on the inner side (adjacent to the liquefied gas) with respect to the heat insulating layer 303 and the heat insulating layer 303 may be provided on the outer side (the side adjacent to the hull) with respect 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 depending on whether the liquefied gas storage tank 300 is a membrane type, a stand-alone type, a pressurized type, or the like.
The heat insulating layer (303) insulates the interior of the liquefied gas storage tank (300) from the outside using a heat insulating material. The heat insulating layer 303 is formed of a heat insulating structure using various heat insulating materials such as polyurethane foam (PUF), perlite and wood, and is provided with a metal such as stainless steel (SUS) and invar (INVAR) .
The insulation layer 303 can be structured according to a conventionally well-known type such as Mark III, No. 96 when the liquefied gas storage tank 300 is a membrane type. When the liquefied gas storage tank 300 is a stand alone type, , SPB, and the like. Of course, the insulating layer 303 is not limited in the structure as described above.
The barrier layer 302 may insulate the inside of the liquefied gas storage tank 300 from the outside using an inert gas. The barrier layer 302 may form an empty space and an empty space of the barrier layer 302 may be formed between the inner wall of the liquefied gas storage tank 300 and the insulating layer 303 and / Between the outer wall and the heat insulating layer 303, or the like.
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 unit 605 provided outside. At this time, the inert gas supplier 605 may use a N2 generator.
The outer heat insulating 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 filled with an inert gas such as nitrogen, Can be insulated from the outside of the gas tank room (30).
The outer heat insulating space 304 is dimensioned 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 inert gas can be supplied by the inert gas supply unit 605 And the outer heat insulating space 304 is larger in size than the barrier layer 302 of the inner heat insulating space 301 so that the supply of the inert gas can be performed from the outside of the container carrier 1 or from the land An inert gas can be supplied. Here, the outer heat insulating space 304 can be supplemented with the inert gas by the inert gas supplier 605 when the inert gas leaks.
However, since the outer heat insulating space 304 can be sealed after being filled with the inert gas, the discharge of general inert gas such as the inner heat insulating space 301 may not be performed. However, there may be a case where it is necessary to discharge the inert gas due to a change in the inside of the external heat insulating space 304 (such as an increase in internal pressure). Accordingly, in the external heat insulating space 304, Not shown) may be provided. A safety valve (not shown) is provided in the outside inert gas discharge line, and the safety valve is closed by any cause of the external heat insulating space 304 (excessive inert gas injection, leakage from the liquefied gas storage tank 300, etc.) It can be opened. Therefore, the outer inert gas discharge line can discharge the inert gas in the outer heat 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 heat insulating space 304. At this time, one end of the sampling line may be provided in the outer heat insulating space 21 and the other end may extend to the outside of the outer heat insulating space 304.
A leak gas sensor (not shown) may be connected to the sampling line extending outside the outer heat insulating space 304. The leak gas sensor can detect whether the leaked liquefied gas is mixed with the inert gas extracted along the sampling line.
In this case, in order to inspect the leakage gas sensor, the operator must enter the inside of the outside heat insulating space 304, so that the inside of the outside heat insulating space 304 ) Is replaced with the outside air or the oxygen concentration must be adjusted to the outside air.
Therefore, in the present embodiment, the sampling line is provided in the outer heat insulating space 304 and the leak gas sensor is provided in the sampling line extended to the outer heat insulating space 304, so that even if the operator does not enter the outer heat insulating space 304, Can be checked.
At this time, the sampling line may extend to the sampling room (for example, the cabin 600) where the other end is very easy for the operator to approach, and the leak gas sensor may be provided in the cabin 600. One end of the sampling line may be provided on the upper side and the lower side of the outer heat insulating space 304, respectively.
Here, the outer heat insulating space 304 is formed by sampling a gas inside the outer heat insulating space 304 to sample the inner gas of the outer heat insulating space 304 in order to sense the gas composition, (Not shown). The sampling line may further include a sampling device for analyzing the sampling gas in a separate space inside the cabin 600. Since the sampling device corresponds to a known configuration, a detailed description thereof will be omitted.

The support 305 is provided on the upper side or the 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, An anti-floating chock which is a support 305 provided between the upper side and the passive deck 32 and a support 305 provided between the lower side and the bottom of the liquefied gas storage tank 300 And may include an anti-rolling chock.
An anti-floating choke, which is a support 305 provided between the upper side of the liquefied gas storage tank 300 and the passive deck 32, is configured such that when the seawater flows into the container carrier 1, the liquefied gas storage tank 300 rises It is possible to prevent the liquefied gas storage tank 300 from being damaged or damaged by being hit by the hull of the hull 60 and being impacted by the sea water or by preventing the sea water from flowing into the gas tank room 30.
The anti-rolling chock, which is a support 305 provided between the lower side and the bottom of the liquefied gas storage tank 300, supports the lower side of the liquefied gas storage tank 300, Or downward movement can be prevented.
In an embodiment of the present invention, the liquefied gas storage tank 300 may further include a stiffener 3051 provided below the liquefied gas storage tank 300.
The stiffener 3051 can be provided in the lower portion of the liquefied gas storage tank 300 in the hull of the bottom portion 63 to prevent the bottom portion 63 from being destroyed from the weight of the liquefied gas storage tank 300. [ Specifically, the stiffener 3051 may be provided throughout the support 305 of the liquefied gas storage tank 300, and the stiffener 3051 may be provided with a weight of up to about 700 tons for one support 305 And it has an effect of improving the stability of the tank conduction.

The gas fuel supply room 31 has a passive deck 32 on the lower side of the high deck 33 on the upper side, a second transverse bulkhead structure 342 on the front side, a first transverse bulkhead structure 341 on the rear side, 6 are surrounded by a left side portion 64 and a right side portion 65 and are partitioned by the passive deck 32 into the gas tank room 30 and the internal devices can be supported through the passive deck 32. Here, the gas fuel supply chamber 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 chamber 31 may be formed in a hull form Which is a moving space of a human or a crew, as well as the left and right portions 64 and 65 of the hull 6 constituted by the passageway.
The gas fuel supply room 31 includes at least a part of the dome 306, a tank connection room 310 connected to the upper side of the dome 306, a gas fuel supply part 311, a gas valve train (GVT) 312, A gas fuel supply room inlet 313 for circulating the internal air of the gas fuel supply room 31 and a gas fuel supply room discharge part 314, which can house a gas supply unit (not shown) (Not shown).
The housing of the gas fuel supply room 31 is formed along the passive deck 32 and the high deck 33, the left side portion 64 and the right side portion 65 of the hull 6 and the transverse bulkhead structure 34, (Not shown) formed of a heat insulating material, 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 which realizes heat insulation.
The housing of the gas fuel supply chamber 31 may have a gas fuel supply chamber inlet 313 for sucking outside air to circulate the air inside the gas fuel supply chamber 31, And a gas fuel supply chamber discharge unit 314 for discharging the internal air of the fuel cell 31 to the outside. Negative pressure or positive pressure may be applied to the inside of the gas fuel supply chamber 31 to discharge the gas inside or to allow the inside of the gas fuel supply chamber 31 to circulate. A separate device (preferably a fan) may be provided in the fuel supply room inlet 313 or the discharge part 314. [ Where the gas fuel supply chamber discharge portion 314 can communicate with the bunker station 604
The gas fuel supply room 31 is provided with a connection portion (not shown) for connecting the liquefied gas supply line 3116 and the evaporation gas supply line 3117, which is a line connecting the dome 306 and the gas fuel supply portion 311, And the connecting portion may be configured such that the outer surface of the connecting portion is exposed to the interior of the gas fuel supply chamber 31 without providing a separate cover. At this time, the liquefied gas supply line 3116 and the evaporation gas supply line 3117 can be protected by the housing of the gas fuel supply chamber 31 without providing a separate cover, Can be done together. Here, of course, the ventilation of the liquefied gas supply line 3116 and the evaporation gas supply line 3117 can be performed together with the ventilation (internal air circulation) of the gas fuel supply chamber 31.
The liquefied gas supply line 3116 that closes the housing of the gas fuel supply chamber 31 with the housing having the SUS material or forms a heat insulating portion provided inside the housing and supplies fuel to the gas fuel supply unit 311, And the evaporation gas supply line 3117 can be implemented and the structure of the liquefied gas supply line 3116 and the evaporation gas supply line 3117 can be simplified.
The gas fuel supply chamber 31 may perform ventilation to implement venting of the internal gas, and the ventilation mechanism will be described in detail with reference to FIG.
FIG. 10 is a conceptual illustration of ventilation of a container carrier gas fueling chamber according to an embodiment of the present invention.

The gas fuel supply chamber 31 is connected to the outside of the gas fuel supply chamber 31 through the gas fuel supply chamber inlet 313 formed at least one of the upper deck 60 formed on the side of the high deck 33 The gas introduced into the gas fuel supply chamber 31 flows into the gas fuel supply chamber 31 and flows into the gas fuel supply chamber 31 through the stagnant gas inside the gas fuel supply chamber 31, And may be discharged to at least one gas fuel supply chamber discharge portion 314.
That is, the gas fuel supply chamber 31 can discharge the gas present therein or the stagnant gas inside the gas fuel supply chamber 31 through the gas introduced from the outside, When a liquefied gas is leaked into the room 31 by leaking or vapor such as evaporation gas, a gas such as a vaporized gas is discharged to the outside together with the gas introduced from the outside, It is possible to prevent cold weather and ensure safety.
This can be realized by generating a positive pressure or a negative pressure by a separate device (preferably a fan) installed in the gas fuel supply chamber inlet 313 or the gas fuel supply chamber outlet 314.

The tank connection chamber 310 which is connected to the top surface of the dome 306 is accommodated in the gas fuel supply chamber 31 and is provided in a rectangular parallelepiped shape or other shapes to connect the liquefied gas storage tank 300 and the gas fuel supply unit 311).
The tank connection room 310 is configured to have a rectangular shape, for example, and is configured to have a door portion 3106 formed on the side thereof, so that the liquefied gas storage tank 300 and the liquefied gas supply line 3116 or the evaporation gas And may be formed to surround a portion to which the supply line 3117 is connected.
The tank connecting room 310 does not need to circulate the internal gas by filling the inside with the inert gas and it is not necessary to separately provide equipment for circulating the internal gas, thereby reducing the construction cost of the tank connecting room 310 And the structure of the tank connection room 310 is simplified. Here, the tank connecting room 310 may be connected to the inert gas supplier 605 to receive the inert gas for receiving the inert gas.
Even when the liquefied gas leaks or leaks through the tank connecting room 310 at the portion where the top surface of the dome 306 is connected to the liquefied gas supply line 3116 or the evaporation gas supply line 3117, It is possible to prevent the gas storage tank 300 or the passive deck 32 and other devices provided in the gas fuel supply room 31 from being exposed to cold.
The door 3106 is configured to be openable and closable (for example, in the form of a door) so that a worker or a working device can flow in and out of the tank connection room 310, As shown in Fig.
When the door portion 3106 is provided on the upper side of the tank connection room 310, when the uppermost surface of the dome 306 is connected to the liquefied gas supply line 3116 or the evaporation gas supply line 3117, A separate hatch must be provided on the upper side of the gas fuel supply room 31, that is, the high deck 33, in order to allow the maintenance device and the operator to move through the hatch, so that maintenance work is very inconvenient The accessibility is lowered and the efficiency of the maintenance work is decreased.
Accordingly, in the present invention, the door 3106 is provided on the side of the tank connection room 310, so that the uppermost surface of the dome 306 is connected to the liquefied gas supply line 3116 or the evaporation gas supply line 3117, The maintenance equipment and the movement of the operator to the inside of the tank connection room 310 are made to the left and right so that the maintenance device and the worker can flow in and out easily and the work accessibility is improved and the efficiency of the maintenance work is maximized.
As described above, the container transportation line 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, It is possible to effectively prevent the cold and heat damage due to the fuel leakage by making the sealing tight.
The tank connecting room 310 can perform ventilation to implement the venting of the internal gas, and the ventilation mechanism will be described in detail with reference to FIG. 10 again. In this case, the tank connecting room 310 is closed But it is assumed that the method of ventilation is adopted instead of the method of.
The tank connecting room 310 connects the gas fuel supply room inlet 313 with a duct (not shown) to introduce the gas from the outside of the gas fuel supply room 31 into the interior of the tank connection room 310 And the introduced gas flows through the duct together with at least one bunker station 604 by flowing the stagnant gas existing in the tank connecting room 310, (314). ≪ / RTI >
In other words, the tank connection room 310 can discharge the gas existing inside or the stagnant gas inside the tank connection room 310 to the outside of the tank connection room 310 through the gas introduced from the outside, The gas such as the evaporation gas is discharged to the outside together with the gas introduced from the outside, thereby preventing the inside of the tank connection room 310 from being cold-weathered and the safety .
This can be realized by generating a positive pressure or a negative pressure by a separate device (preferably a fan) installed in the gas fuel supply chamber inlet 313 or the gas fuel supply chamber outlet 314, (Not shown) (for example, a duct line) connected to the gas fuel supply chamber discharging unit 314 to vent the internal gas independently of the gas fuel supply chamber 31 .

In this embodiment, the evaporation gas generated in the liquefied gas storage tank 300 is supplied to the gas fuel supply unit 311 (preferably, the compressor 3114) to utilize the evaporation gas for heating the evaporation gas, And is utilized as the fuel of the engine 501, so that the evaporation gas can be efficiently used. In order to realize 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.
Figure 9 is a top view of a container carrier gas fueling chamber according to an embodiment of the present invention.

The gas fuel supply unit 311 includes a pump 3110 for treating the liquefied gas which is the fuel stored in the liquefied gas storage tank 300 and a pump 3110 for processing the evaporated gas generated in the heat exchanger 3112 and the liquefied gas storage tank 300 A liquefied gas supply line 3116 which may include a compressor 3114 and supplies liquefied gas from the liquefied gas storage tank 300 to the engine 501 or the auxiliary engine 502 and a liquefied gas supply line 3116 that supplies the liquefied gas to the liquefied gas storage tank And an evaporation gas supply line 3117 for supplying the gas to the engine 501 or the auxiliary engine 502 from the engine 300 or 300.
Here, the liquefied gas supply line 3116 is connected to the liquefied gas storage tank 300, the pump 3110, the heat exchanger 3112 and the engine 501 in this order so that liquefied gas stored in the liquefied gas storage tank 300 Pressurized to a high pressure and high temperature through the pump 3110 and the heat exchanger 3112 and supplied to the engine 501. The liquefied gas supplied to the engine 501 drives the engine 501 to generate propulsive force of the container carrier 1.
The evaporation gas supply line 3117 is connected to the liquefied gas storage tank 300, the compressor 3114, the engine 501 or the auxiliary engine 502 in this order so that the evaporation gas generated in the liquefied gas storage tank 300 And is pressurized to a high pressure through the compressor 3114 to be supplied to the engine 501 or the auxiliary engine 502.
The compressor 3114 can process the evaporation gas to drive the auxiliary engine 502, preferably the boiler or DFDG, to prevent the internal pressure of the liquefied gas storage tank 300 from rising, Thereby helping to generate the thrust of the container carrier 1.
When the pump 3110, the heat exchanger 3112 and the compressor 3114 malfunction or shut down, or when the liquefied or evaporated gas leaks or leaks, the liquefied or evaporated gas is additionally treated And in order to treat the liquefied gas or the evaporated gas, the liquefied gas or the device for the auxiliary treatment of the evaporated gas must be placed in a safe place so as not to be subjected to further cooling by the leaking or leaked vapor or liquefied gas do.
The pump 3110, the heat exchanger 3112, and the compressor 3114 malfunction or shut down when the backup room 35 is installed so as not to be separated from the gas fuel supply room 31 The heat exchanger 3112 and the compressor 3114 are shut down due to the occurrence of a leak or leakage of the liquefied gas or the evaporated gas and an accident such as a fire in the gas fuel supply chamber 31 , And the backup room (35) can also come into contact with accidents such as fire or fuel leakage.
As a result, the auxiliary devices housed in the backup room 35 can not be operated, thereby stopping the propulsion of the container carrier 1 or treating the evaporated gas in the liquefied gas storage tank 300, The internal pressure of the valve 300 rapidly increases. This may cause the durability of the liquefied gas storage tank 300 to be weakened and seriously destroy the container liner 1 to cause serious problems in safety.
Therefore, in the present invention, an auxiliary pump (not shown), an auxiliary heat exchanger (not shown), and an auxiliary compressor 3115 are provided to assist the pump 3110, the heat exchanger 3112, the compressor 3114 Which 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. Thus, 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 It is possible to prevent an increase in the internal pressure of the liquefied gas storage tank 300, thereby improving the reliability and safety of the container transportation line 1.
The backup room 35 can be located inside the gas fuel supply room 31 and can include an auxiliary pump, an auxiliary heat exchanger, an auxiliary compressor 3115, and an auxiliary pump, an auxiliary heat exchanger to the liquefied gas storage tank And a separate line (not shown) for connecting the auxiliary compressor 3115 to the liquefied gas storage tank 300 through the engine 501 and an additional line (Not shown). Here, the auxiliary compressor 3115 may be an LD (Low Duty) compressor, so that it is possible to maximize the available space in the ship by using only a minimum space.

The backup room 35 is configured to drive the auxiliary pump and the auxiliary heat exchanger in the event that the pump 3110 and the heat exchanger 3112 malfunction or shut down or the liquefied gas or evaporative gas leaks or leaks, The diesel fuel stored in the diesel tank 401 can be supplementarily supplied and replenished when the amount of fuel treated by the auxiliary pump and the auxiliary heat exchanger is insufficient to generate the propulsion force of the container carrier 1. [
The backup room 35 may also be configured to operate the auxiliary compressor 3115 in the liquefied gas storage tank 300 when the compressor 3114 malfunctions or shutdown or leaks or leaks liquefied or evaporated gas The internal pressure of the liquefied gas storage tank 300 can be effectively managed by treating the evaporation gas and the engine 501 can be operated for processing the evaporated gas when the load of the container carrier 1 is not required to generate thrust, But also 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 and circulate the air through the inside of the backup room 35, and then discharge the air to the gas fuel supply room discharge unit 314. [ Since the backup room 35 must be configured independently of the gas fuel supply room 31, the gas fuel supply room inlet part 313 and the gas fuel supply room discharge part 314 are connected to a duct (not shown) As shown in FIG.

The gas valve train (GVT) 312 can control the flow rate of the liquefied gas or the evaporating gas, and can be classified as a danger zone in the zone by means of a device that implements the flow of the liquefied gas or the evaporating gas, Sealing may be required if located in a safety zone.
The gas valve train 312 can control the flow of the evaporation gas or liquefied gas supplied to the engine 501 on / off and the evaporation gas or the like transmitted by the gas valve train 312 can be controlled by the gas valve train 312, The gas fuel is supplied from the gas fuel supply part 311 of the gas fuel supply chamber 31 instead of the engine room 50 in which the engine 501 is provided because the pressure is relatively higher than the evaporation gas or the like delivered by the unit 503, Even if the flow of the gas or liquefied gas is controlled on / off, it is possible to cope with the load fluctuation of the engine 501 sufficiently.
The gas valve train 312 can be provided not in the engine room 50 where the engine 501 is provided but in the gas fuel supply chamber 31 where the gas fuel supply part 311 is provided, The gas valve train 312 can be installed without being hermetically closed in a room form, unlike the gas valve unit 503, since the gas valve train 31 is classified as a dangerous area.
Particularly, since the container transportation line 1 belongs to a truncation line having a small curvature coefficient (Cb, block coefficient), the engine room 50 is narrower than the other commercial lines. It is possible to increase the space utilization of the engine room 50 by installing the gas valve train 312 that has been used as the gas valve train 312 to the gas fuel supply room 31 instead of the engine room 50. As described above, It is possible to install the gas valve train 312 in the gas fuel supply room 31 far from the engine 501 because the gas valve train 312 handles the high pressure liquefied gas when the liquefied gas flows into the gas valve train 312 The liquefied gas can be smoothly supplied by the pressure even if the distance between the gas valve train 312 and the engine 501 is far apart.

The inert gas supplier 605 can generate the inert gas to be stored in the outer heat insulating space 304 and the inert gas supplier 605 can supply the inert gas to the outer heat insulating space 304 only when the inert gas leaks out It can be supplemented.
The inert gas supplier 605 may be connected to the outer heat insulating space 304 through an inert gas supply line (not shown) and may be disposed inside the fuel supply chamber 31 or above the upper deck 60 have. Herein, the inert gas may preferably be nitrogen (N2).
Hereinafter, the inert gas supply unit 605 will be described in detail with reference to FIG. 3 is a BB` sectional view of a container carrier according to an embodiment of the present invention.

3, the inert gas supply unit 605 may be provided on both the left and right sides of the stack 601 and may be installed in front of the vent mast 602 to form a stack 601 and a vent mast 602 And can be positioned to be enclosed.
Although not shown here, the inert gas supply unit 605 may be provided in the gas fuel supply chamber 31. [ The inert gas supply unit 605 may be connected to the gas fuel supply unit 311 through an inert gas supply line (not shown) when the gas supply unit is provided in the gas fuel supply chamber 31. Specifically, Line 3116 or evaporation gas supply line 3117 to perform purging on the line.
In this case, since the inert gas supplier 605 is located inside the gas fuel supply chamber 31, it is not necessary to provide a casing (not shown) of the inert gas supplier 605, There is an effect that can be done.
3, the inert gas supply unit 605 may be provided on both left and right sides of the stack 601 and may be installed in front of the vent mast 602 and surrounded by the stack 601 and the vent mast 602 So that it can be supported by the stack 601 and the vent mast 602.
In this case, the inert gas supplier 605 may further include a casing of the inert gas supplier 605 to insulate the inert gas from the outside and prevent the inert gas from leaking to the outside.
Therefore, the inert gas supply unit 605 can be firmly fixed to the hull by the stack 601 and the vent mast 602 because of the casing.

The passive deck 32 is fixed by the transverse bulkhead structure 34 or the first transverse bulkhead structure 341 and the second transverse bulkhead structure 342 and is connected to the gas tank chamber 30 and the gas fuel supply chamber 31, And other devices provided in the gas fuel supply room 31 such as the gas fuel supply part 311 are supported on the upper side of the liquefied gas storage tank 300, that is, on the upper side of the gas tank room 30.
The passive deck 32 is constructed such that the transverse bulkhead structures 34 are all formed of a watertight type transverse bulkhead structure so that the parcel decks 34, which extend transversely between the first transverse bulkhead structure 341 and the second transverse bulkhead structure 342 So that the passive deck 32 is connected to the components of the gaseous fuel supply 311 (pump 3110, heat exchanger 3112, compressor 3114, auxiliary compressor 3115, ), A gas valve train (GVT) 312, and the like).
The passive deck 32 is configured such that the lower side facing the liquefied gas storage tank 300 is flattened so that a support 305 (preferably an anti-floating chock) is provided in the liquefied gas storage tank 300 So that it can exist between the partial deck 32 and the partial deck 32. At this time, the passive deck 32 may have a double hull structure or may have a reinforcing member (not shown) inside thereof to enhance durability, and a longy member (not shown) Can be formed.
As described above, according to the present invention, by providing the partial deck 32, it is possible to reduce the container loading amount of the container carrier 1 and to effectively use the space, and to stabilize the support of the gas fuel supply unit 311 And can form a support 305 between the liquefied gas storage tank 300 and the liquefied gas storage tank 300 to help firmly support the hull 6.
The upper part of the gas tank room 30 and the lower surface of the gas fuel supply room 31 are formed flat so that the respective configurations of the gas fuel supply part 311 are formed on the partial deck 32 Can be deployed to unfold.
That is, the passive deck 32 can 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, Can be installed directly on the deck (32). That is, all the configurations of the gaseous fuel supply unit 311 can be arranged in one layer, that is, the passive deck 32, without the pump 3110 and the heat exchanger 3112 being placed on different layers.
In this case, the lower ends of the respective configurations of the gas fuel supply part 311 may be placed on the same plane, or all of them may be connected to the upper surface of the partial deck 32, It suffices that the highest configuration among the configurations included in the supply unit 311 can be accommodated without any problem.

Therefore, the present invention can reduce the height of the gas fuel supply chamber 31 and reduce the height of the gas fuel supply chamber 31, thereby increasing the height of the gas tank chamber 30. [ This means that the size of the liquefied gas storage tank 300 can be further secured and the present invention can be applied to a case where the liquefied gas storage tank 300 is mounted on the container transportation line 1, (The height of the liquefied gas storage tank 300 can be sufficiently secured, the length of the liquefied gas storage tank 300 can be sufficiently shortened to reduce the length of the gas tank chamber 30) The effect of reducing the width of the front and rear is derived)

The hi-deck 33 is at least partly inclined to a hull that is a left side portion 64 and a right side portion 65 of the hull 6 and a hatch cover 24 is provided on the upper side of the cargo area 2 While the high deck 33 is disposed above the gas fuel zone 3, rather than 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 therein) is formed, and a lotion member (not shown) may be formed on the lower side to enhance durability.
Specifically, the high deck 33 is capable of partitioning the containers C and the gas fuel supply chamber 31, and has a horizontal portion (not shown) formed on the same line T2 as the uppermost line of the hatch cover 24 A slant part 33b formed in a bent shape connecting the horizontal part 33a and the auxiliary horizontal part 33c and a slant part 33b formed in parallel with the horizontal part 33a, And a auxiliary horizontal portion 33c formed on the same line T1.
Here, the auxiliary horizontal portion 33c may be a girder (not shown in the figure, in the form of a numeral '7' in FIG. 7, which has a structure capable of withstanding the greatest force) And an additional support (not shown) for supporting the bunker station 604 may be further provided on the upper side.
Here, the high deck 33 does not have the structure of the horizontal part 33a, the inclined part 33b, and the auxiliary horizontal part 33c, and the flat member such as the hatch cover 24 is simply formed as the hull 6 The structural torsional moment is received by the six degrees of freedom movement of the container carrier 1. This causes the edge portion of the container carrier 1 to contact with the flat portion and the hull 6, There is a concern that the durability of the portion to which the left side portion 64 or the right side portion 65 is connected is weakened to cause leakage or damage in case of damage.
Therefore, in the present invention, the high deck 33 is provided with the inclined portion 33b formed to be bent and inclined so that the step formed by the horizontal portion 33a and the auxiliary horizontal portion 33c is connected, It is possible to minimize the occurrence of the structural torsional moment due to the six degrees of freedom movement of the ship and to prevent the high deck 33 and the left side portion 64 or the right side portion 65 So that the durability of the high deck 33 can be improved.
As described above, in the present invention, the hatch cover 24 is provided on the upper side of the cargo hold 20, while the high deck 33 is disposed on the upper side of the gas fuel zone 3 instead of the hatch cover 24. So that it is possible to generate a larger sealing force than that of closing the gas fuel zone 3 with the hatch cover 24 and improve the safety of the container carrier 1. [
In the present invention, a plurality of containers C may be provided on the high deck 33 or a bunker station 604 may be provided. At this time, the bunker station 604 is additionally supported by a stool 603 And can be firmly fixed to the upper side of the high deck 33. [

The transverse bulkhead structure 34 may be provided with a first transverse bulkhead structure 341 at the rear and a second transverse bulkhead structure 342 at the front with a first transverse bulkhead structure 341, The structures 342 may all be formed as watertight transverse bulkhead structures.
The transverse bulkhead structure 34 is provided with a safety or safety means to safely receive the liquefied gas storage tank 300 and to protect the containers C or engine 501 in the cargo hold 20 from the liquefied gas. shall.
For this purpose, in the embodiment of the present invention, the first transverse bulkhead structure 341 and the second transverse bulkhead structure 342 are all formed of a watertight transverse bulkhead structure, and at the same time, the respective transverse bulkhead structures 341, 343 may be connected, or in other embodiments, the first transverse bulkhead structure 341 may be at least partially enclosed and the second transverse bulkhead structure 342 may be constructed of a watertight transverse bulkhead structure.
Here, a heat insulating layer may be formed on each of the transverse bulkhead structures 341 and 342, and the heat insulating layer may be A-60, but not limited thereto, and any material capable of effectively performing heat insulation is possible.
The transverse bulkhead structure 34 is constructed such that one or two or more unit partition walls 341a and 341b or 342a or 342b are connected to a vertical or horizontal member between the unit partition walls 341a and 341b or 342a or 342b It is possible structure. One of the unit partition walls 341a and 341b or 342a or 342b is a watertight bulkhead or a closed bulkhead 341b or 342b and the other is an open bulkhead or structural bulkhead 341a or 342a.
The vertical member may be a longitudinal bulkhead or a vertical web, and the horizontal member may serve as a deck.

First, the first transverse bulkhead structure 341 and the second transverse bulkhead structure 342 are all constructed of a watertight transverse bulkhead structure and the vents 323 are connected to the respective transverse bulkhead structures 341, 342 The case will be described with reference to Fig.
The first transverse bulkhead structure 341 may have an open portion 341a that opens to the engine room 50 side and a watertight portion 341b that is closed to the gas tank room 30 side, The transverse bulkhead structure 342 may have an open portion 342a that is open toward the cargo space 20 and a watertight portion 342b that is closed to the gas tank room 30 side. Here, a heat insulating layer may be formed on the watertight portions 341b and 342b of the first transverse bulkhead structure 341 and the second transverse bulkhead structure 342, and the heat insulating layer may be formed of A-60.
In this case, since the first transverse bulkhead structure 341 does not have a closed space, the engine 501 can not be protected from the liquefied gas stored in the liquefied gas storage tank 300, It is possible to ventilate the first transverse bulkhead structure 341 through the ventilation device 343 instead of forming a space so that even if the liquefied gas leaks or leaks in the liquefied gas storage tank 300, It is possible to protect the bar engine 501, which is removed through the ventilation before approaching the engine 501.
At this time, the ventilation performed in the first transverse bulkhead structure 341 can be ventilated together through a cargo hold (not shown) that houses the container C located in the engine zone 5, The second transverse bulkhead structure 342 may also be connected to the ventilation system 343 to perform ventilation.
As described above, the first transverse bulkhead structure 341 and the second transverse bulkhead structure 342 are both constructed of a watertight transverse bulkhead structure and the vents 323 are connected to the transverse bulkhead structures 341 and 342 (Container C, engine 501, or other equipment) from the liquefied gas stored in the liquefied gas storage tank 300 through the ventilation of the first transverse bulkhead structure 341, The space utilization inside the vessel can be maximized and the construction cost can be reduced.

Next, in another embodiment, the first transverse bulkhead structure 341 is described with reference to FIG. 5 to illustrate the case where at least a portion of the first transverse bulkhead structure 341 has a closed zone and the second transverse bulkhead structure 342 has a watertight transverse bulkhead structure .
The first transverse bulkhead structure 341 includes an open portion 341a which is at least partly opened and at least partly closed on the engine room 50 side, a watertight portion 341b which is hermetically sealed to the gas tank room 30 side, And an intermediate connection portion 341c for connecting the watertight portion 341b to at least part of the open portion 341a to form a hermetically closed space.
At least a portion of the open portion 341a of the first transverse bulkhead structure 341 is open formed toward the cargo hold housing the container C located in the engine compartment 5, At least a portion of the open portion 341a of the valve body 341 that is formed to be hermetically sealed is formed toward the engine compartment 50 of the engine compartment 5.
At this time, the first transverse bulkhead structure 341 is formed by the intermediate connection portion 341c, at least a portion of the open portion 341a that is at least partly closed, the portion at which the watertight portion 341b is closed and the bottom portion 63, A sealed space is formed between the tank room 30 and the engine room 50. Even if the liquefied gas leaks or leaks from the liquefied gas storage tank 300 due to the sealed space, Can be prevented from approaching. The portion of the first transverse bulkhead structure 341 where the closed space is not formed is connected to the ventilation device 343 to provide ventilation with the cargo hold housing the container C located in the engine zone 5 You can share.
The first transverse bulkhead structure 341 includes at least one of a portion facing the cargo hold housing the container C located in the engine compartment 5 at the watertight portion 341b, an intermediate connection portion 341c, A heat insulating layer may be formed at a part where the sealing is formed, and this heat insulating layer may be formed of A-60. Further, the heat insulating layer formed in the intermediate connection portion 341c may extend at least partially to a cargo hold that receives the container C located in the engine compartment 5.
The second transverse bulkhead structure 342 may have an open portion 342a that opens to the cargo compartment 20 side and a watertight portion 342b that is hermetically sealed to the gas tank room 30 side. In the watertight portion 342b of the second transverse bulkhead structure 342, a heat insulating layer may be formed, and this heat 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 the ventilation.
When the first transverse bulkhead structure 341 is at least partially closed and the second transverse bulkhead structure 342 is constructed as a watertight transverse bulkhead structure, (Container C, engine 501, or other equipment) from the liquefied gas stored in the liquefied gas storage tank 300. [0050]

The bunker station 604 is disposed on the upper side of the gas fuel supply room 31 and specifically on the upper side of the high deck 33 (more preferably, the lower side of the bunker station 604 is located above the load line of the hull 6) And performs bunkering to the liquefied gas storage tank 300 through a bunker (not shown) provided therein. Here, the bunker station 604 is located above the gas fuel supply room 31 disposed above the gas tank room 30, so that there is an effect of reducing the number of lines connected to the liquefied gas storage tank 300 at the time of bunkering .
The bunker station 604 is provided on the upper side of the high deck 33 and the lower side of the bunker station 604 can be fixedly supported on the stool 603 as well as the high deck 33, The container C can be loaded on the upper side.
The bunker station 604 is formed in a frame structure and is formed so that the container C can be shipped around and can be provided at the ends of the left portion 64 and the right portion 65 of the hull 6, (C).
The bunker station 604 includes a bunker station discharging portion 604a which is a surface configured to be open to the outside, a lower surface of the bunker station 604, a top surface of the bunker station 604, and a side surface of the bunker station 604, A space for accommodating bunker devices and equipment can be formed. Here, the size of the bunker station 604 is shown as six sizes of the containers C, but this is only an example, and the bunker station 604 can be flexibly modified according to the size of the ship or the capacity of the container C.
The bunker station discharging portion 604a is opened to the left in the left side portion 64 of the hull 6 or in the right direction in the right side portion 65 of the hull 6 so that the bunker station 604 is stagnated inside the bunker station 604, It is possible to discharge the flowing gas.
More specifically, the bunker station discharge portion 604a may be formed to open in the left direction of the hull 6 when the bunker station 604 is provided at the end of the left side portion 64 of the hull 6, When the hull 6 is provided at the end of the right side portion 65 of the hull 6, Even if one side of the bunker station 604 is opened here, the bunker station 604 is located above the load line of the hull 6, so that the problem of inflow of seawater during bunkering is not caused.
The bunker station discharging portion 604a may be formed so as to open to the outside of the hull 6 to discharge the gas flowing inside the bunker station 604 or the stagnating gas therein. The gas flowing inside the bunker station 604 or the stagnant gas in the inside of the bunker station 604 does not need to be provided with a separate ventilation device but is installed in the gas fuel supply room 31 or the tank connection room 310, The inner air can be circulated by being hit by the upper surface of the bunker station 604, the side surface of the bunker station 604, and the like, and can be discharged to the outside.
Here, the internal air circulation mechanism of the bunker station 604 is such that the air vented inside the gas fuel supply chamber 31 has a very strong force to strike the top surface of the bunker station 604, The air that strikes the upper surface of the bunker station 604 moves to the side of the bunker station 604 (the opposite side opposite from the bunker station discharging portion 604a in the direction of the hull 6) and bumps again to move to the bunker station discharging portion 604a The internal air circulation of the bunker station 604 is performed.
The lower surface of the bunker station 604 may have a plate shape having a frame structure or an area having a frame structure provided on the lower side of the bunker station 604. When the lower surface of the bunker station 604 has a frame structure having a skeleton at the corner, it can 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 6 of the passageways P or the left side 64 of the hull 6 and can be further supported by a hull 60 or stool 603 provided on the hull of the right side portion 65 of the hull 6 to be fixed to the hull. Further, it can be additionally fixed by an additional support provided on the auxiliary horizontal portion 33c of the high deck 33. [
The stool 603 is provided at least on the hull of the passageway P or the left side portion 64 of the hull 6 or the hull of the right side portion 65 of the hull 6, It can support the bunker station 604 together with the conveyor 33.
The lower surface of the bunker station 604 may include a gas fuel supply chamber discharge portion 314 and the gas fuel supply chamber discharge portion 314 may be provided with a separate device (fan) A positive pressure or a negative pressure may be applied to the gas or the stagnant gas flowing into the room 31 or the tank connection room 310 to be discharged into the bunker station 604.
The side surface or the upper surface of the bunker station 604 may be in the form of a plate having a frame structure or an area provided on a side surface of the bunker station 604 and having a skeleton at an edge. And can be closed indirectly by the container C when the side surface of the bunker station 604 has a frame structure having a skeleton at an edge.
As described above, the bunker station 604 circulates the gas flowing inside the bunker station 604 or the stagnant gas in the inside of the bunker station 604 to vent it to the outside through the gas fuel supply room 31 or the tank connection room 310, (Ventilation device) of the gas fuel supply room 31, the tank connection room 310, or the bunker station 604 by sharing the force of the gas flowing inside or the stagnant gas being vented Thereby simplifying the ventilation structure and reducing the venting space, thereby expanding the available space.

The diesel fuel zone 4 may be provided in the space between the cargo spaces 2 located near the forward portion 62 and the inner space of the lower hull 6 of the cabin 600, And a machine room (not shown). Here, the machine room has various mechanical devices such as a control room (not shown) for controlling other equipment required for the container carrier 1, an electronic device provided in the machine or the container carrier 1, and a diesel tank room 40 and may be disposed in the interior of the cabin 600 or in a separate space other than the diesel fuel zone 4.
More specifically, the diesel fuel zone 4 has front and rear watertight transverse bulkhead structures 21, the left and right sides of which are the left side 64, the right side 65 and the hatch coaming 23 of the hull 6, The space where the diesel fuel zone 4 is disposed is formed in a space surrounded by half of the space of the cargo hold 20, Lt; / RTI > Here, the watertight transverse bulkhead structure 21 can be formed in the same structure as the transverse bulkhead structure 34 described above with the watertight transverse bulkhead structure.
The diesel fuel zone 4 may include a diesel tank room 40 for receiving the diesel tank 401. The diesel tank room 40 stores diesel fuel and can occupy the same or similar space as the diesel fuel zone 4 and, when the machine room is located in the diesel fuel zone 4, It can be located on the underside of the machine room. The diesel fuel may be, but is not limited to, MDO, HFO, and the like.
The diesel fuel zone 4 may receive the diesel fuel line 402 to transfer diesel fuel from the diesel tank 401 to the engine 501 and the diesel fuel line 402 may receive the diesel fuel line 402 from the bottom portion 63, And may extend from the diesel fuel zone 4 to the engine zone 5, as shown in FIG.
Since the diesel fuel line 402 is provided in the inner space of the hull located at the bottom portion 63, the reduction of the container loading amount can be drastically reduced, and the effect of significantly improving the container transfer rate of the container carrier 1 And the diesel fuel line 402 can be protected from the outside.

The engine compartment 5 may include an engine compartment 50 and a cargo hold and may be arranged so that the cargo hold is located in a recessed formed portion of the engine compartment 50. [
The engine room 50 includes an engine 501 provided in front of a propulsion device (not shown) provided in the stern part 61 and connected to the propulsion device and generating propulsion by transmitting power to the propulsion device, (GVU) 503 that regulates the fuel supplied to the auxiliary engine 502 and the auxiliary engine 502 that consumes the evaporative gas to deliver power to other devices (e.g., a power unit or a power generating unit) . At this time, the engine 501 may be a high-pressure gas injection engine (MEGI) and the auxiliary engine 502 may be a DFDG.
The engine room 50 may be formed in the shape of an 'C' that is depressed on one side of the upper part, and a plurality of containers C may be disposed with a cargo hold at a depressed part. The space in which the cargo hold is disposed may be a space of the same or similar size as the two bays.
The engine room 50 is provided with a stack 601 and a vent mast 602 so that exhaust gas generated by combustion of the fuel in the engine 501 or other gases accumulated in the engine room 50 .
The engine 501 is supplied with fuel from the liquefied gas storage tank 300 or the diesel tank 401 and is driven to generate power. Specifically, the engine 501 is supplied with the liquefied gas or the evaporative gas from the liquefied gas storage tank 300, or receives the diesel fuel (preferably an oil such as HFO or MDO, hereinafter, (Not shown) in the cylinder (not shown) is reciprocated by the combustion of the fuel, so that the piston is connected to the piston A crankshaft (not shown) is rotated, and a shaft (not shown) connected to the crankshaft can be rotated.
Accordingly, when the propeller (not shown) connected to the propeller shaft (not shown) rotates during the operation of the engine 501, the container carrier 1 can be moved forward or backward.
The engine 501 may be a heterogeneous fuel engine in which a mixture of an evaporation gas and an oil is not supplied but an evaporation gas or oil is selectively supplied. The selective supply of the evaporative gas or oil to the heterogeneous fuel engine prevents the mixture of the two materials having different combustion temperatures from being mixed, thereby preventing the efficiency of the engine 501 from deteriorating. That is, the engine 501 is not limited to the above-described engine, and may be an engine for propulsion that can be driven by supplying a liquefied gas, a vaporized gas, and an oil.
The engine 501 may be connected to the diesel tank 401 through the diesel fuel line 402 to receive the oil from the lower direction and the diesel connection line 402 does not need to have a ventilation structure, And can be installed in the inner space of the hull located at the bottom portion 63 from the diesel fuel zone 4 to the engine zone 5 to transfer the diesel fuel to the engine 501. [
The auxiliary engine 502 uses the evaporation gas supplied from the liquefied gas storage tank 300 as fuel. That is, the auxiliary engine 502 requires evaporative gas and can be driven with fuel. The auxiliary engine 502 may be, but is not limited to, a generator (e.g., DFDG) or a boiler (e.g., a boiler that generates steam).
Further, the auxiliary engine 502 can be disposed above the position where the engine 501 is provided.
The gas valve unit (GVU) 503 can control the flow rate of evaporative gas or liquefied gas supplied to the auxiliary engine 502. [ Here, the gas valve unit 503, which implements the flow of the evaporative gas or the liquefied gas, may be required to be sealed if it is classified as a dangerous zone in the area and is located in the safety zone.
Therefore, if the gas valve unit 503 or the like is provided in the engine compartment 50 which is a safety zone, the gas valve unit 503 is required to be provided in a separate closed space. The gas valve unit 503 is provided to stably supply the flow rate of the evaporation gas or the like to the demand point of the generator or the boiler, that is, the auxiliary engine 502, that consumes fuel at a lower pressure than the engine 501, The flow rate can be flexibly varied according to the load. Therefore, when the gas valve unit 503 and the auxiliary engine 502 are separated from each other, it is difficult to appropriately cope with the load fluctuation of the auxiliary engine 502.
Accordingly, the gas valve unit 503 is positioned inside the engine room 50 in order to be positioned adjacent to the auxiliary engine 502, and is hermetically closed in the form of a room. When the gas valve unit 503 is located in the safety zone (here, engine room 50), the gas valve unit 503 is sealed and filled with inert gas through the inert gas supply unit 605 It may be necessary to implement cyclic circulation to fill the gas (which may be an inert gas), such as air, which does not cause discharge of the inert gas.
Referring to FIG. 11, when the gas valve unit 503 has a circulation structure, gas such as air can be supplied through the auxiliary engine 502.
An evaporation gas supply line 3117 may be provided as the auxiliary engine 502 through the gas valve unit 503. The evaporation gas supply line 3117 supplies evaporation gas or the like to the auxiliary engine 503 . At this time, the evaporation gas supply line 3117 may have a double hull pipe structure to prevent leakage of evaporation gas and the like.
At this time, an evaporation gas or the like may flow inside the evaporation gas supply line 3117 having a double pipe structure, and air or the like may be supplied to the outside of the evaporation gas supply line 3117. Air or the like supplied to the outer shaft of the evaporation gas supply line 3117, To the valve unit 503. That is, the outside of the double pipe structure evaporation gas supply line 3117 can communicate with the inside of the gas valve unit 503, and air or the like supplied to the liquefied gas supply line 3116 or the evaporation gas supply line 3117 The gas valve unit 503 can be transferred to realize the circulation of the gas valve unit 503.
The cargo hold may have a plurality of containers C disposed in the depressed portion of the engine room 50 and may have a ventilation structure for circulating the gas inside the engine room 50 , But may be smaller than the space of one bay described above. The effective use of the internal space in the container carrier 1 means that the container C, which is the purpose of the container carrier 1, Which means loading the container C as much as possible in the inner space for transporting the container C)
The engine zone 5 must be a safety zone while the gas fuel zone 3 is a danger zone and the lateral length of the engine zone 5 and the gas fuel zone 3 Should be isolated from one another by the barrier structure (34). In addition, when the liquefied gas supply line 3116 or the evaporation gas supply line 3117 passes through the cargo hold of the engine zone 5, the container loading amount is reduced.
In order to solve such a problem, in the present invention, the cargo hold of the engine compartment 5 is arranged on the upper left side or the upper right side of the gas fuel supply chamber 31 in the stern direction (the gas fuel supply chamber The liquefied gas supply line 3116 or the evaporation gas supply line 3117 may bypass the first transverse bulkhead structure 341 in the cargo hold direction of the engine compartment 5 from the first transverse bulkhead structure 31, And then the liquefied gas supply line 3116 or the evaporation gas supply line 3117 is vertically downwardly moved through the electric room disposed at the left or right end of the cargo hold of the engine section 5 And may be connected to the gas valve unit (GVU) 503 or the auxiliary engine 502 through the gas valve unit (GVU) 503. In this case, the cargo hold of the engine compartment 5 is a space in which at least a part of the container C is not loaded for the arrangement of the liquefied gas supply line 3116 or the evaporation gas supply line 3117 (Electric Space) can be provided.
Thus, the liquefied gas supply line 3116 or the evaporation gas supply line 3117 can pass through the upper left or right end of the first transverse bulkhead structure 341, 3) can be increased and the container loading amount can be reduced.
Thus, in the embodiment of the present invention, when the liquefied gas supply line 3116 or the evaporation gas supply line 3117 is connected to the engine 501 or the auxiliary engine 502 from the gas fuel supply unit 311, The space occupied by at least a portion of the cargo hold of the container C can be reduced.

Normally, the liquefied gas supply line 3116 and the evaporation gas supply line 3117 must always have a ventilating or double sealing structure to protect the external devices due to the cryogenic nature of the liquefied gas. There is a difference in that the space occupied by the fuel line 402 is larger than that of the space in which the fuel line 402 is formed. As a result, as the space for installing the liquefied gas supply line 3116 and the evaporation gas supply line 3117 increases, Thereby reducing the space available for accommodating the display device.
The container carrier 1 according to the present invention is thus arranged such that the gas fuel zone 3 is disposed in front of the engine zone 5 and between the diesel fuel zone 4 and the engine zone 5, The space for installing the gas supply line 3116 and the evaporation gas supply line 3117 is minimized to minimize the container loading amount reduction and the diesel fuel zone 4 is disposed below the cabin 600 to further minimize the container loading amount . At the same time, by using liquefied gas and diesel fuel (oil) as propellant fuel, it is possible to supply the propellant fuel flexibly, which improves the reliability of transportation.
In this case, the container carrier 1 may have a structure in which the hull 6 has a two-island structure. (The 2island structure is a structure in which the cabin 600 and the stack 601 protrude above the upper deck 60, And two structures are projected on the upper side of the frame 60 to be seen as two islands.

The container carrier 1 may also be provided with a cabin 600, a stack 601, a vent mast 602 and a propelling device (not shown).

The cabin 600 is installed higher than the container C stacked in front of the cabin 600 in order to secure a view of the cabin and the containers C provided in front of the cabin 600 are installed in the cabin 600, It can be stacked only up to a range in which the field of view can be ensured.

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

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

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification and the modification are possible.
It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

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1: Container Carrier 2: Cargo Section
3: gas fuel zone 4: diesel fuel zone
5: Engine compartment 6: Hull
20: Cargo hold 21: Watertight transverse bulkhead structure
22: Open transverse bulkhead structure 23: Hatch coamings
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: stack
602: vent mast 603: stool
604: Bunker station 604a: Bunker station discharging part
605: Inert gas feeder

Claims (7)

A tank room for receiving a liquefied gas storage tank;
A fuel supply chamber provided above the tank room and below the upper deck of the vessel to receive a fuel supply unit for treating the fuel stored in the liquefied gas storage tank;
A backup room partitioned from the fuel supply room to form a separate space in the fuel supply room;
A compressor provided in the fuel supply room for processing evaporative gas generated in the liquefied gas storage tank; And
And an auxiliary compressor installed in the backup room for processing the evaporative gas when the compressor malfunctions or stops,
The auxiliary compressor includes:
And regulates the internal pressure of the liquefied gas storage tank by treating the evaporated gas when the compressor malfunctions or stops. 2. The compressor according to claim 1,
And the vaporized gas is treated and supplied to a boiler or a DFDG. 3. The method of claim 2,
A consumer who consumes fuel or auxiliary fuel; And
Further comprising an auxiliary tank for storing the auxiliary fuel,
The above-
Wherein when the compressor malfunctions or stops, the auxiliary fuel stored in the auxiliary tank is supplied to consume the auxiliary fuel. 4. The fuel cell system according to claim 3,
HFO or MDO. ≪ / RTI > The method according to claim 1,
The liquefied gas is liquefied natural gas (LNG)
Wherein the auxiliary compressor is an LD (Low Duty) compressor. The method according to claim 1,
A customer who consumes the fuel;
A pump provided in the fuel supply room for pressurizing the liquefied gas stored in the liquefied gas storage tank; And
Further comprising an auxiliary pump provided in the backup room to pressurize the liquefied gas when the pump malfunctions or stops. 7. The system according to claim 6,
When the pump malfunctions or stops, the fuel treated through the auxiliary pump is supplied and consumed,
The auxiliary compressor includes:
And the vaporized gas is treated and supplied to a boiler or a DFDG.

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