KR102077914B1 - Gas Fuelled Container Carrier - Google Patents

Abstract

Gas fuel propulsion container carrier according to an embodiment of the present invention, the hull having a bay (bay) in which the container is accommodated; An engine room in which a propulsion engine for transmitting power to the hull is accommodated; A cabin provided in front of the engine room; A gas fuel supplied to the propulsion engine is stored, and includes a liquefied gas storage tank provided below the cabin, wherein the cabin comprises at least one side surface of at least one side of a pump tower formed above the liquefied gas storage tank. It is characterized in that it is formed so as to surround the open state.

Description

Gas Fueled Container Carrier

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

A ship is a vehicle that navigates the ocean carrying a large amount of minerals, crude oil, natural gas, or thousands of containers, and is made of steel and thrust generated by rotation of the propeller while floating on the water surface by buoyancy. Go through.

These vessels generate thrust by driving the engine, where the engine uses gasoline or diesel to move the piston so that the crankshaft is rotated by the reciprocating movement of the piston, whereby the shaft connected to the crankshaft rotates to drive the propeller. It was common to make it possible.

However, when heavy oil such as HFO or MFO is used as a propellant fuel, when the heavy oil or the like is combusted, environmental pollution due to various harmful substances contained in the exhaust gas is severe, and regulations on environmental pollution are being tightened. Regulations on propulsion systems using fuel oil are also being tightened, and the costs to meet these regulations are increasing.

As a fuel for ships, instead of using heavy oil or using only a minimal amount, in accordance with recent technology development, gasoline or diesel have been replaced by liquefied natural gas, liquefied petroleum gas, etc. We use the same liquefied gas and develop technology.

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

Such 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 petroleum gas is reduced by the liquefied propane is 1/260, butane is reduced to a volume of 1/230 has the advantage of high storage efficiency.

Such liquefied gas is supplied to and used by various demand sources. Recently, a LNG fuel supply method for driving an engine using LNG as a fuel in an LNG carrier carrying liquefied natural gas has been developed. There is an increasing number of attempts to apply the method to vessels other than LNG carriers.

In addition, container carriers have also been tried to improve fuel efficiency, lower emissions, and improve operating efficiency by using engines using liquefied gas.

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

Gas fuel propulsion container carrier according to the present invention, the hull having a bay (bay) in which the container is accommodated; An engine room in which a propulsion engine for transmitting power to the hull is accommodated; A cabin provided in front of the engine room; A gas fuel supplied to the propulsion engine is stored, and includes a liquefied gas storage tank provided below the cabin, wherein the cabin comprises at least one side surface of at least one side of a pump tower formed above the liquefied gas storage tank. It is characterized in that it is formed so as to surround the open state.

Specifically, the cabin, the upper side and the rear side of the pump tower may be formed so as to surround the '' 'form of the open state.

Specifically, the liquefied gas storage tank is provided, and further comprising a gas fuel room formed under the cabin, the liquefied gas storage tank, the first fuel bay and the first fuel bay of the lower side of the cabin It may be housed in a second fuel bay provided over the front.

In detail, the pump tower may be disposed at a position of the first fuel bay in the liquefied gas storage tank.

Specifically, when the hull and the pump tower is dried, the cabin may be dried in a dry dock and then the pump tower may be dried on the inner wall.

Specifically, the liquefied gas storage tank may be a single storage tank having a size including the first fuel bay and the second fuel bay.

In detail, the gas fuel room may include: a recess having a stepped shape that is lowered from an upper side to a lower side on each of left and right sides; And a bottom surface which is flat and abuts with the lowermost side of the recess, the bottom surface of which is the lowermost portion of the hull, wherein the liquefied gas storage tank includes a space including the first fuel bay and the second fuel bay in the front-rear direction. It is formed to have a length to occupy, and is formed to have a left and right width of the bottom surface in the left and right direction, and may have a height from the bottom surface to less than the upper deck in the vertical direction.

In detail, the gas fuel room may accommodate a container in at least one of the left side and the right side of the liquefied gas storage tank.

Specifically, the hatch cover formed on the upper side of the bay; And a short hatch cover formed at an upper side of the second fuel bay, wherein the short hatch cover may have a width smaller than the left and right widths of the hatch cover.

Specifically, the short hatch cover may include a first short hatch cover and a second short hatch cover formed on an upper side of the second fuel bay and formed on left and right sides of the cabin.

The gas fuel propulsion container carrier according to the present invention uses an engine using liquefied gas as a fuel in place of gasoline or diesel, thereby increasing fuel economy, reducing emissions, and improving operating efficiency.

In addition, the gas fuel propulsion container carrier according to the present invention, the liquefied gas storage tank is arranged in the lower side of the cabin, but extends in the direction of the cabin relative bow or stern, the width is reduced, but the height is arranged to increase the sloshing of the liquefied gas There is an effect that can reduce and optimize the liquefied gas storage.

In addition, the gas fuel propulsion container carrier according to the present invention, by reducing the width of the liquefied gas storage tank, but designed to increase the height, it is possible to secure a sufficient space for shipping the container on board the ship has the effect of improving the transport capacity of the vessel.

In addition, the gas fuel propulsion container carrier according to the present invention, by changing the hatch cover provided on the upper side of the liquefied gas storage tank to a small size and arranged two on each side of the ship has the effect of minimizing the open side of the ship. .

In addition, the gas fuel propulsion container carrier according to the present invention, after forming the liquefied gas storage tank in the 'b' form, it is disposed under the cabin, there is an effect that can minimize the loss of the amount of loading container.

In addition, the gas fuel propulsion container carrier according to the present invention, the liquefied gas storage tank is formed in the 'b' form and by placing the pump tower in a low position, the length of the pump tower is shortened to reduce the manufacturing and installation costs The vibration problem is solved.

In addition, the gas fuel propulsion container carrier according to the present invention is formed by placing the liquefied gas storage tank in the lower side of the cabin, extending in the stern direction of the cabin, by arranging the pump tower in the liquefied gas storage tank formed in the stern direction of the cabin, When the ship is built, the cabin can be dried in a dry dock and then the pump tower can be dried on the inner wall, thus reducing the residence period in the dry dock, thereby improving productivity and significantly reducing production costs.

In addition, the gas fuel propulsion container carrier according to the present invention, by placing a liquefied gas storage tank in the lower side of the cabin and forming a cabin in the form of '' ', the ship tower in the dry dock when the ship is built, the pump tower in the inner wall Since it can be dried, the residence time in the dry dock is reduced, which increases productivity and significantly reduces production costs.

1 is a side view of a gas fuel propulsion container carrier according to an embodiment of the present invention.
Figure 2 is a cross-sectional plan view of the upper deck of the gas fuel propulsion container carrier according to an embodiment of the present invention.
3 is a bottom view of a gas fuel propulsion container carrier according to an embodiment of the present invention.
4 is a cross-sectional view taken along line AA ′ of the gas fuel propulsion container carrier according to the exemplary embodiment of the present invention.
5 is a plan view illustrating a process of installing a cabin and a pump tower in a gas fuel propulsion container carrier according to an embodiment of the present invention.
6 is a side view illustrating a process of installing a cabin and a pump tower in a gas fuel propulsion container carrier according to an embodiment of the present invention.
7 is a side view of a gas fuel propulsion container carrier according to another embodiment of the present invention.
8 is an enlarged partial side view of a cabin portion of a gas fuel propulsion container carrier according to another embodiment of the present invention.
9 is a cross-sectional view taken along line BB ′ of the gas fuel propulsion container carrier according to another embodiment of the present invention.
10 is a cross-sectional view taken along line CC` of the gas fuel propulsion container carrier according to another embodiment of the present invention.
11 is a side view illustrating a process of installing a cabin and a pump tower in a gas fuel propulsion container carrier according to another embodiment of the present invention.
12 is a side view of a gas fuel propulsion container carrier according to another embodiment of the present invention.
13 is an enlarged partial side view of a cabin portion of a gas fuel propulsion container carrier according to another embodiment of the present invention.
14 is a cross-sectional view along a DD ′ of the gas fuel propulsion container carrier according to another embodiment of the present invention.
15 is a cross-sectional view taken along line EE ′ of the gas fuel propulsion container carrier according to another embodiment of the present invention.

The objects, specific advantages and novel features of the present invention will become more apparent from the following detailed description and the preferred embodiments associated with the accompanying drawings. In the present specification, in adding reference numerals to the components of each drawing, it should be noted that the same components as possible, even if displayed on different drawings have the same number as possible. In addition, in describing the present invention, if it is determined that the detailed description of the related known technology may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

Hereinafter, the liquefied gas may be LPG, LNG, ethane, and the like, and for example, may mean LNG (Liquefied Natural Gas), and the evaporated gas may mean BOG (Boil-Off Gas) which is natural vaporized LNG.

Liquefied gas can be referred to regardless of the change of state, such as liquid state, gas state, liquid and gas mixed state, supercooled state, supercritical state, etc., it is also known that evaporated gas is the same. In addition, the present invention is not limited to the liquefied gas to be treated, it may be a liquefied gas treatment system and / or boil-off gas treatment system, it is apparent that the system of each of the drawings to be carried out can be applied to each other. In addition, the mixed fluid described below may be a mixed boil-off gas or a fluid containing at least some liquid phase.

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

1 is a side view of a gas fuel propulsion container carrier according to an embodiment of the present invention, Figure 2 is a cross-sectional plan view of the upper deck of the gas fuel propulsion container carrier according to an embodiment of the present invention, Figure 3 according to an embodiment of the present invention 4 is a bottom view of the gas fuel propulsion container carrier according to an embodiment of the present invention, Figure 5 is a sectional view of the cabin and gas fuel propulsion container carrier according to an embodiment of the present invention. 6 is a plan view illustrating a process of installing a pump tower, and FIG. 6 is a side view illustrating a process of installing a cabin and a pump tower in a gas fuel propulsion container carrier according to an embodiment of the present invention.

1 to 6, the gas fuel propulsion container carrier 1 according to the embodiment of the present invention includes a cargo hold 2, a gas fuel room 3, and an engine room 4.

Hereinafter, a gas fuel propulsion container carrier 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

The gas fuel propulsion container carrier 1 is a gas fuel container carrier 1 which transports the container C from a departure place to an unloading place.

The gas fuel container carrier 1 may include a plurality of cargo hold 2 and other devices inside the hull below the upper deck D. Specifically, the gas fuel propulsion container carrier 1 may include a plurality of containers ( A cargo compartment 2 containing C), a gas fuel room 3 containing liquefied gas storage tank 10, an engine room 4 containing an engine 30, each cargo hold 2 The gas fuel room 3 and the engine room 4 may be partitioned by first deck strips 2c.

In this case, the gas fuel container carrier 1 may have a feature that the hull has a 2island structure. (The 2island structure is a structure in which the cabin 41 and the stack 42 protrude above the upper deck D, that is, the upper deck) Two structures protrude above D) and look like two islands.The cabin 41 and the stack 42 will be described in detail below.)

The cargo hold 2 may be formed in plural.

The cargo hold 2 comprises two bays 2a and 2b, in which a container C is stacked in each bay 2a and 2b. Each bay 2a, 2b is partitioned by a deck strip 2c, specifically an open deck strip between two closed deck strips provided on both sides of the cargo hold 2 so that one cargo hold 2 Two bays 2a and 2b are formed in the chamber.

Here, the closed deck strip is a structure in which one side is closed like a partition structure and the other side is open, and the open deck strip is an structure in which one side and the other side are open.

Specifically, the cargo hold 2 is a closed deck strip in the front and rear, the port portion 103a of the hull on the left and right, the starboard portion 103b and the hatch coaming (not shown), the upper side The hatch cover 52 installed on the hatch coaming, the lower side is formed surrounded by the bottom portion 104.

Here, the bottom portion 104, the port portion 103a and the starboard portion 103b may be in the form of a double bulkhead having a space formed therein in the form of a hull, and store ballast water of a ship. It may be a ballast water storage chamber. However, at least a portion of the bottom 104 may include a diesel fuel line (not shown) through which diesel fuel flows.

The gas fuel room 3 includes one bay below the cabin 41 and one bay below the cabin 41, that is, one bay 3a and cabin 41 below the cabin 41. It may be formed as one bay (3b) formed in front of the lower side of the. One bay below the cabin 41 is the 1st fuel bay 3a, and one bay formed in front of the cabin 41 below is the 2nd fuel bay 3b.

That is, the gas fuel room 3 may be formed of two bays including the first fuel bay 3a and the second fuel bay 3b. The cabin 41 may be formed closer to the bow portion 101 side with respect to the center of the hull.

The gas fuel room 3 has a closed deck strip in the front and rear, the port part 103a of the hull on the left and right, the starboard part 103b and the hatch coaming (not shown), and the upper side is the 1st fuel bay 3a. The upper deck D may be formed on the upper side, and the first and second short hatch covers 51a and 51b and the upper deck D may be formed together on the upper side of the second fuel bay 3b. It is formed surrounded by.

The internal space of the gas fuel room 3 can accommodate the liquefied gas storage tank 10 and the container C, and supports 11 and the liquefied gas storage tank supporting the lower side of the liquefied gas storage tank 10. It includes a second deck strip 12 for partitioning the 10 and the container (C), each of the left and right side may have a stepped recess 13 in the form of lowering from the upper side to the lower side.

The liquefied gas storage tank 10 may be formed to have a length occupying the space of two bays including the first fuel bay 3a and the second fuel bay 3b in the front-rear direction (length), It can be formed to have the left and right width of the bottom surface 104a of the bottom portion 104, which does not include the recess portion 13 in the direction (width), the upper deck on the bottom surface 104a in the vertical direction (height) It may be formed to have a height up to (D).

In this case, the liquefied gas storage tank 10 may have a single storage tank shape having a size including the first fuel bay 3a and the second fuel bay 3b. For example, the liquefied gas storage tank 10 ) May have a rectangular cube shape.

In the case where the liquefied gas storage tank 10 is disposed in the bow 101, as the size of the liquefied gas storage tank 10 increases, the natural period of the hull (natural frequency) and the natural period of the liquefied gas storage tank 10 There is a fear that the external force due to the sloshing is very large, so that the deformation of the liquefied gas storage tank 10 is suddenly generated, thereby causing a serious problem that leads to breakage.

In order to solve this problem, according to the embodiment of the present invention, the size of the front, rear, left and right widths, and the top and bottom heights is limited as described above to prevent the occurrence of the problem sloshing and to secure an optimum amount of liquefied gas. In addition, there is an effect that can be arranged in one tank without having to divide into a plurality.

In addition, there is an effect that the manufacturing cost of the liquefied gas storage tank 10 and the design cost of the hull can be maintained inexpensively.

The liquefied gas storage tank 10 may store a liquefied gas to be supplied to a propulsion engine 30 or a power generation engine (not shown) and may be a B-type tank as a standalone storage tank. Of course, the liquefied gas storage tank 10 is not limited to the stand-alone storage tank may be a variety of storage tank (membrane type, pressure type, etc.).

Specifically, the liquefied gas storage tank 10 is provided on the lower side of the upper deck (D), and is partitioned from the plurality of containers (C) from side to side by the second deck strip 12, the upper side is an anti-floating choke (not shown) The lower side is fixed to the lower side of the upper deck (D), the lower side is fixed to the bottom surface 104a of the bottom 104 by the support 11 (preferably anti-rolling choke) can be supported in the gas fuel room (3). have.

The liquefied gas storage tank 10 may include a pump tower 60 for discharging or introducing the liquefied gas to the outside, and may further include a dome 61 connecting the pump tower 60 to the outside.

The pump tower 60 is installed inside the liquefied gas storage tank 10 and is formed in a tower shape in a direction from the bottom (not shown) to the top surface (not shown) of the liquefied gas storage tank 10. And may be formed to be connected to the dome 61.

The pump tower 60 may discharge the liquefied gas stored in the liquefied gas storage tank 10 disposed in the first fuel bay 3a to the outside or supply the liquefied gas storage tank 10 to the inside of the liquefied gas storage tank 10 from the outside. have.

The dome 61 may be formed below or above the liquefied gas storage tank 10, and the liquefied gas stored in the liquefied gas storage tank 10 may be transferred to the liquefied gas processing device 20 through the dome 61. Can supply

The gas fuel room 3 may accommodate the plurality of containers C on the left and right sides of the liquefied gas storage tank 10, and the plurality of containers C may be supported by the recess 13. It may be supported through a separate support member.

The plurality of containers C may be separated from each other through the liquefied gas storage tank 10 and the second deck strip 12, so that even if a leak of liquefied gas in the liquefied gas storage tank 10 occurs, the plurality of containers (C) can keep safe.

In addition, the gas fuel room 3 may include a liquefied gas processing apparatus 20 and first and second short hatch covers 51a and 51b on the upper side of the second fuel bay 3b. Here, a plurality of containers C may be stacked on the liquefied gas treatment device 20 and the first and second short hatch covers 51a and 51b.

The liquefied gas processing apparatus 20 may be formed on the upper deck D formed in front of the cabin 41 and above the liquefied gas storage tank 10.

The liquefied gas processing device 20 is a device for processing liquefied gas stored in the liquefied gas storage tank 10, and a liquefied gas pump (not shown), a vaporizer (not shown), an evaporative gas compressor (not shown), and the like. It may include, and to treat the liquefied gas with the apparatus for processing the liquefied gas can satisfy the temperature and pressure and phase conditions required by the propulsion engine 30 or the power generation engine.

In this case, a explosion-proof wall (not shown) may be installed between the liquefied gas processing device 20 and the cabin 41 due to the explosion risk of the liquefied gas.

The first and second short hatch covers 51a and 51b may be formed on the upper sides of the containers C accommodated in the second fuel bay 3b, respectively. That is, not all of the upper deck D or the complete hatch cover (such as the hatch cover 52 of the present invention) is formed on the upper side of the second fuel bay 3b, but on the left side 103a of the ship among the upper decks D. The first short hatch cover 51a may be formed closer to each other, and the second short hatch cover 51b may be formed closer to the right side 103b of the ship.

The first short hatch cover 51a may be disposed in a space accommodated in the second fuel bay 3b and provided on upper sides of the containers C disposed on the left side of the liquefied gas storage tank 10. That is, the first short hatch cover 51a may be disposed on the left side of the liquefied gas processing device 50 on the plane on which the upper deck D is formed.

The second short hatch cover 51b may be disposed in a space accommodated in the second fuel bay 3b and may be provided above the containers C disposed on the right side of the liquefied gas storage tank 10. That is, the second short hatch cover 51b may be disposed on the right side of the liquefied gas processing device 50 on the plane on which the upper deck D is formed.

Accordingly, in the embodiment of the present invention, the first and smaller sizes than the hatch cover 52 without the hatch cover 52 formed above the cargo hold 2 above the second fuel bay 3b. By installing the second short hatch covers 51a and 51b on the left and right portions 103a and 103b, respectively, the opening inboard side can be minimized to sufficiently reinforce the weak longitudinal strength, thereby increasing the stability of the hull and the hull. This reduces the design cost.

The engine room 4 includes a propulsion engine 30 and may accommodate at least some of the containers (C).

The engine room 4 includes a propulsion engine 30 provided at the front of a propulsion device (not shown; propeller) provided in the stern portion 102 and connected to the propulsion device to transmit power to the propulsion device to generate propulsion force 30. ), A power generation engine (not shown) that consumes boil-off gas to power other devices (such as a power unit or power generator) and a gas valve unit (GVU; not shown) that regulates the fuel supplied to the power generation engine. Can accommodate At this time, the propulsion engine 30 may be a high-pressure gas injection engine (MEGI) and the power generation engine may be a heterogeneous fuel engine (DFDG).

The engine room 4 may be formed in a shape of a 'b' in which an upper side is recessed. A cargo hold may be provided at a recessed portion so that a plurality of containers C may be disposed. The space in which the cargo hold is arranged may be a space of the same or similar size as the two bays. Of course, the size can be more than that.

The engine room 4 is provided with a stack 42 and a vent mast (not shown) at an upper side thereof, and the exhaust gas generated by the combustion of fuel in the propulsion engine 30 or other gas accumulated in the engine room 4. The gases can be released to the outside.

The propulsion engine 30 is driven by receiving fuel from the liquefied gas storage tank 10 or a diesel tank (not shown) to generate power. Specifically, the propulsion engine 30 is supplied with liquefied gas or evaporated gas from the liquefied gas storage tank 10 or diesel fuel (preferably oil such as HFO or MDO, hereinafter, diesel fuel mixed with oil) from the diesel tank. Crank shaft connected to the piston as the piston (not shown) inside the cylinder (not shown) reciprocates due to the combustion of the fuel. (Not shown) can be rotated, and a shaft (not shown) connected to the crankshaft can be rotated.

Therefore, the gas fuel propulsion container carrier 1 may move forward or backward as the propeller (not shown) connected to the propeller shaft (not shown) rotates when the propulsion engine 30 is driven.

The propulsion engine 30 may be a heterogeneous fuel engine in which the boil-off gas or oil is not supplied and mixed with the boil-off gas or oil. The heterogeneous fuel engine is selectively supplied with the boil-off gas or oil in order to prevent the two materials having different combustion temperatures from being mixed and supplied to prevent the efficiency of the propulsion engine 30 from dropping. That is, the propulsion engine 30 is not limited to the example engine described above, but may be an engine for propulsion that can be driven by being supplied with liquefied gas, evaporated gas and oil.

Here, the propulsion engine 30 may be connected to the diesel tank through a diesel fuel line (not shown) in order to receive oil from the downward direction, and the diesel connection line does not need to have a ventilation structure and thus may have a single pipe structure. It may be installed in the inner space of the hull located in the bottom portion 104 from the diesel tank to the engine room (4) to transfer the diesel fuel to the propulsion engine (30).

The power generation engine uses the boil-off gas supplied from the liquefied gas storage tank 10 as a fuel. That is, the power generation engine needs boil-off gas and can be driven by using it as a fuel. The power generation engine may be a generator (for example, DFDG) or a boiler (for example, a boiler for generating steam), but is not limited thereto.

In addition, the power generation engine may be disposed above the provided position of the propulsion engine 30.

The gas valve unit may control the flow rate of the boil-off gas or liquefied gas supplied to the power generation engine. Here, the gas valve unit may be required to be sealed when the gas valve unit is classified as a dangerous zone on a zone to implement a flow of boil-off or liquefied gas and is located in a safety zone. Therefore, if the gas valve unit or the like is provided in the engine room 4 which is a safety zone, the gas valve unit is required to be provided in a separate sealed space.

The cabin 41 is provided in front of the engine room 4 but is formed in front of the stack 42, and may be a space where crews (not shown) reside. In addition, the cabin 41 can be equipped with the liquefied gas storage tank 10 in the lower side.

The cabin 41 may be formed to surround at least one side surface of the pump tower 60 formed on the liquefied gas storage tank 10 in an open state. (See Figure 5)

Specifically, the cabin 41 may be formed so as to surround the 'c' shape in which the upper and rear sides of the pump tower 60 are open. More specifically, the cabin 41 may be formed so as to surround the 'c' shape so that the upper and rear sides of the dome 61 connected to the upper portion of the pump tower 60 have an open state. .

Due to the structure of the cabin 41, in the present invention, when the cabin 41 and the pump tower 60 are dried, after the cabin 41 is dried in a dry dock (a), the pump tower 60 is placed on the inner wall (shown in FIG. May not be used). Therefore, in the present invention, the residence period in the dry dock is reduced, thereby improving productivity and greatly reducing production costs.

The stack 42 is formed at the rear of the cabin 41 at the upper side of the engine room 4, may include a vent mast around the outside, and exhausts exhaust gas, which is a discharge of fuel burned by the propulsion engine 30. Can be discharged.

In summary, since the gas fuel propulsion container carrier 1 according to the present invention uses an engine 30 that uses liquefied gas as a fuel instead of gasoline or diesel, the fuel efficiency is high, the emission amount is reduced, and the operation efficiency is improved. It is effective.

In addition, the gas fuel propulsion container carrier 1 according to the present invention, the liquefied gas storage tank 10 is arranged in the lower side of the cabin, but extending in the direction of the cabin reference bow, the width is reduced, but by raising the height of the liquefied gas by placing It has the effect of reducing sloshing and optimizing liquefied gas storage.

In addition, the gas fuel propulsion container carrier 1 according to the present invention, by reducing the width of the liquefied gas storage tank 10, but designed to increase the height, it is possible to secure a sufficient space for loading the container on board the ship to improve the transport capacity of the ship It is effective to let.

In addition, the gas fuel propulsion container carrier 1 according to the present invention, by changing the hatch cover (51a, 51b) provided on the upper side of the liquefied gas storage tank 10 to a small size and arranged two on each side of the ship There is an effect that can minimize the inner opening range.

In addition, the gas fuel propulsion container carrier 1 according to the present invention, the liquefied gas storage tank 10 is disposed below the cabin 41 and the cabin 41 is formed in the 'c' shape, the cabin during ship construction After the pre-drying (41) in the dry dock can be dried after the pump tower 60 in the quay wall there is an effect that the residence period in the dry dock is reduced to improve productivity and significantly reduce the production cost.

Hereinafter, the gas fuel propulsion container carrier 1 according to another embodiment of the present invention will be described with reference to FIGS. 7 to 11.

FIG. 7 is a side view of a gas fuel propulsion container carrier according to another embodiment of the present invention, FIG. 8 is a partial side view of an enlarged cabin part of the gas fuel propulsion container carrier according to another embodiment of the present invention, and FIG. BB sectional view of a gas fuel propulsion container carrier according to another embodiment, FIG. 10 is a CC sectional view of a gas fuel propulsion container carrier according to another embodiment of the present invention, and FIG. 11 is a gas fuel according to another embodiment of the present invention. Side view showing the process of installing the cabin and pump tower in the propulsion container carrier.

7 to 11, the gas fuel propulsion container carrier 1 according to another embodiment of the present invention includes a cargo hold 2, a gas fuel room 3, and an engine room 4. .

In the present embodiment, since only the gas fuel room 3 is different from the previous embodiment, the configurations other than the gas fuel room 3 are replaced with the configurations in the previous embodiment, and the same reference numerals are used for the convenience of each configuration. However, it does not necessarily refer to the same configuration.

Hereinafter, the gas fuel propulsion container carrier 1 according to another embodiment of the present invention will be described with reference to FIGS. 7 to 11, and the gas fuel room 3 will be described in detail.

The gas fuel room 3 has one bay below the cabin 41 and one bay below the cabin 41, that is, one bay 3a and cabin 41 below the cabin 41. It may be formed as one bay (3b) formed in the rear with respect to the lower side of. One bay below the cabin 41 is the 1st fuel bay 3a, and one bay formed in the back with respect to the lower side of the cabin 41 is the 2nd fuel bay 3b.

That is, the gas fuel room 3 may be formed of two bays including the first fuel bay 3a and the second fuel bay 3b. The cabin 41 may be formed closer to the bow portion 101 side with respect to the center of the hull.

The gas fuel room 3 has a closed deck strip in the front and rear, the port part 103a of the hull on the left and right, the starboard part 103b and the hatch coaming (not shown), and the upper side is the 1st fuel bay 3a. On the upper side, the front first and second short hatch covers 51c and 51d are formed together with the upper deck D, and on the upper side of the second fuel bay 3b, the rear first and second short hatch covers 51e and 51f are upper deck. It may be formed together with (D), the lower side is formed surrounded by the bottom portion 104.

The internal space of the gas fuel room 3 can accommodate the liquefied gas storage tank 10 and the container C, and supports 11 and the liquefied gas storage tank supporting the lower side of the liquefied gas storage tank 10. It includes a second deck strip 12 for partitioning the 10 and the container (C), each of the left and right side may have a stepped recess 13 in the form of lowering from the upper side to the lower side.

The liquefied gas storage tank 10 may include a pump tower 60 for discharging or introducing the liquefied gas to the outside, and may further include a dome 61 connecting the pump tower 60 to the outside.

The pump tower 60 may discharge the liquefied gas stored in the liquefied gas storage tank 10 disposed in the second fuel bay 3b to the outside or supply the liquefied gas storage tank 10 to the inside of the liquefied gas storage tank 10 from the outside. have.

Due to the arrangement of the pump tower 60, in the present invention, when the cabin 41 and the pump tower 60 are dried, the cabin 41 is pre-dried in a dry dock (c), and the pump tower 60 is placed on the inner wall ( Post-drying (d). Therefore, in the present invention, the residence period in the dry dock is reduced, so that productivity is improved and production cost is greatly reduced.

That is, due to the structure described above, there is no change in the total drying date when the ship is built, but the productivity of the product is improved and the production cost is greatly reduced by reducing the stay period in the dry dock.

The dome 61 is formed above the liquefied gas storage tank 10, and can supply the liquefied gas stored in the liquefied gas storage tank 10 to the liquefied gas processing device 20 via the dome 61.

The front first and second short hatch covers 51c and 51d may be formed on the upper sides of the containers C accommodated in the first fuel bay 3a, respectively. That is, not all of the upper deck D or the complete hatch cover (such as the hatch cover 52 of the present invention) is formed on the upper side of the first fuel bay 3a, but on the left side 103a of the vessel among the upper decks D. The front first short hatch cover 51c may be formed closer to each other, and the front second short hatch cover 51d may be formed closer to the right side 103b of the ship.

The front first short hatch cover 51c may be disposed in a space accommodated in the first fuel bay 3a and may be provided above the containers C disposed on the left side of the liquefied gas storage tank 10. That is, the front first short hatch cover 51c may be disposed on the left side of the cabin 41 on the plane on which the upper deck D is formed.

The front second short hatch cover 51d may be disposed in a space accommodated in the first fuel bay 3a and may be provided above the containers C disposed on the right side of the liquefied gas storage tank 10. That is, the front second short hatch cover 51d may be disposed on the right side of the cabin 41 on the plane on which the upper deck D is formed.

The rear first and second short hatch covers 51e and 51f may be formed on the upper sides of the containers C accommodated in the second fuel bay 3b, respectively. That is, not all of the upper deck D or the complete hatch cover (such as the hatch cover 52 of the present invention) is formed on the upper side of the second fuel bay 3b, but on the left side 103a of the ship among the upper decks D. The rear first short hatch cover 51e may be formed closer to each other, and the rear second short hatch cover 51f may be formed closer to the right side 103b of the ship.

The rear first short hatch cover 51e may be disposed in a space accommodated in the second fuel bay 3b and may be provided above the containers C disposed on the left side of the liquefied gas storage tank 10.

The rear second short hatch cover 51f may be disposed in a space accommodated in the second fuel bay 3b and may be provided above the containers C disposed on the right side of the liquefied gas storage tank 10.

Accordingly, in the embodiment of the present invention, the hatch cover 52 formed on the upper side of the cargo hold 2 above the first and second fuel bays 3a and 3b is not provided, and is larger than the hatch cover 52. By installing the small front and rear first and second short hatch covers 51c to 51f on the left and right portions 103a and 103b, respectively, the inboard opening range can be minimized to sufficiently reinforce the weak longitudinal strength. Therefore, the stability of the hull is increased and the design cost of the hull is reduced.

Features other than the above-described contents are the same as those described in the previous embodiment, so they will be replaced by those.

As described above, the gas fuel propulsion container carrier 1 according to the present invention is formed by arranging the liquefied gas storage tank 10 below the cabin 41 and extending in the direction of the stern 102 based on the cabin 41. By arranging the tower 60 in the liquefied gas storage tank 10 formed in the direction of the cabin reference stern 102, the ship tower 41 when the ship 1 is dried, the ship tower 41 is dried in a dry dock, and then the pump tower 60 Since it can be dried afterwards, the length of stay in the dry dock is reduced, improving productivity and greatly reducing production costs.

Hereinafter, the gas fuel propulsion container carrier 1 according to another embodiment of the present invention will be described with reference to FIGS. 12 to 15.

12 is a side view of a gas fuel propulsion container carrier according to another embodiment of the present invention, FIG. 13 is a partial side view illustrating an enlarged portion of a cabin of the gas fuel propulsion container carrier according to another embodiment of the present invention, and FIG. DD ′ sectional view of a gas fuel propulsion container carrier according to still another embodiment of the present invention, and FIG. 15 is a EE ′ sectional view of a gas fuel propulsion container carrier according to another embodiment of the present invention.

12 to 15, the gas fuel propulsion container carrier 1 according to another embodiment of the present invention includes a cargo hold 2, a gas fuel room 3, and an engine room 4. .

In the present embodiment, since only the gas fuel room 3 is different from the previous embodiment, the configurations other than the gas fuel room 3 are replaced with the configurations in the previous embodiment, and the same reference numerals are used for the convenience of each configuration. However, it does not necessarily refer to the same configuration.

Hereinafter, the gas fuel propulsion container carrier 1 according to another embodiment of the present invention will be described with reference to FIGS. 12 to 15, and the gas fuel room 3 will be described in detail.

The gas fuel room 3 has one bay below the cabin 41 and one bay below the cabin 41, that is, one bay 3a and cabin 41 below the cabin 41. It may be formed as one bay (3b) formed in the rear with respect to the lower side of. One bay below the cabin 41 is the 1st fuel bay 3a, and one bay formed in the back with respect to the lower side of the cabin 41 is the 2nd fuel bay 3b.

That is, the gas fuel room 3 may be formed of two bays including the first fuel bay 3a and the second fuel bay 3b. The cabin 41 may be formed closer to the bow portion 101 side with respect to the center of the hull.

The liquefied gas storage tank 10 is formed to be accommodated at least partially in the first fuel bay 3a under the cabin 41 and the second fuel bay 3b formed at the front or the rear of the first fuel bay 3a. do. The liquefied gas storage tank 10 can preferably form the second fuel bay 3b behind the first fuel bay 3a.

The liquefied gas storage tank 10 is a single storage tank having a size occupying the space of two bays including the first fuel bay 3a and the second fuel bay 3b, but having a 'b' shape. Can be. As described above, the gas fuel propulsion container carrier 1 according to the present invention forms the liquefied gas storage tank 10 in a 'b' form, and is disposed below the cabin 41 to lose the amount of the loading container C. There is an effect that can be minimized. For example, in the case of 14K CNTR, the liquefied gas storage tank 10 having the 'b' shape may have an effect of additionally loading a container of approximately 70 to 80 TEU.

The liquefied gas storage tank 10 may be formed to have a length occupying the space of two bays including the first fuel bay 3a and the second fuel bay 3b in the front-rear direction (length), It may be formed to have the left and right widths of the bottom surface 104a of the bottom portion 104 not including the recess portion 13 in the direction (width).

At this time, the liquefied gas storage tank 10 is a second liquefied gas which is a portion formed in the first liquefied gas storage unit 10a and the second fuel bay 3b which are portions formed in the first fuel bay 3a. It may include a storage unit (10b).

The first liquefied gas storage unit 10a has a length that occupies the space of the first fuel bay 3a in the front-rear direction (length) and does not include the recess 13 in the horizontal direction (width). It may be formed to have the left and right width of the bottom surface 104a of the 104, and may have a height from the bottom surface 104a to less than the upper deck D in the vertical direction (height).

The 2nd liquefied gas storage part 10b has the length which occupies the space of the 2nd fuel bay 3b in the front-back direction (length), and does not include the recessed part 13 in the left-right direction (width). It may be formed to have a left and right width of the bottom surface 104a of the 104, and may have a height lower than the height of the first liquefied gas storage unit 10a in the vertical direction (height).

The liquefied gas storage tank 10 may include a pump tower 60 for discharging or introducing the liquefied gas to the outside, and may further include a dome 61 connecting the pump tower 60 to the outside.

The pump tower 60 discharges liquefied gas stored in the liquefied gas storage tank 10 disposed in the second fuel bay 3b, that is, the second liquefied gas storage 10b to the outside, or liquefied gas storage tank from the outside. (10) may be disposed in the second liquefied gas storage unit (10b) to supply to the inside.

Therefore, since the height of the pump tower 60 is formed to be similar to the height of the second liquefied gas storage unit 10b, the pump tower 60 is positioned at a height lower than that disposed in the first liquefied gas storage unit 10a. By disposing the 60, the length of the pump tower 60 is shortened, thereby reducing the manufacturing and installation costs and the vibration problem is solved.

The dome 61 may be disposed above the second liquefied gas storage unit 10b.

The gas fuel room 3 may accommodate a plurality of containers C or oil storage tanks 70 at left and right sides of the liquefied gas storage tank 10, and may include a plurality of containers C or oil storage tanks ( 70 may be supported by the recess 13 and may be supported by a separate support member. Here, the oil storage tank 70 may accommodate oil such as HFO or MDO.

Specifically, the first fuel bay 3a may accommodate the oil storage tank 70 in at least one of the left side or the right side of the first liquefied gas storage unit 10a, and the second fuel bay 3b may include the first fuel bay 3b. A plurality of containers (C) may be accommodated in at least one of the left side or the right side of the two liquefied gas storage (10b). Through this, the internal space of the ship 1 can be utilized to the maximum.

The second fuel bay 3b may accommodate the plurality of containers C also between the second liquefied gas storage unit 10b and the upper deck D.

In addition, the gas fuel room 3 may include a liquefied gas processing apparatus 20 and first and second short hatch covers 51a and 51b on the upper side of the second fuel bay 3b. Here, a plurality of containers C may be stacked on the liquefied gas treatment device 20 and the first and second short hatch covers 51a and 51b.

The first and second short hatch covers 51a and 51b may be formed on the upper sides of the containers C accommodated in the second fuel bay 3b, respectively. That is, not all of the upper deck D or the complete hatch cover (such as the hatch cover 52 of the present invention) is formed on the upper side of the second fuel bay 3b, but on the left side 103a of the ship among the upper decks D. The first short hatch cover 51a may be formed closer to each other, and the second short hatch cover 51b may be formed closer to the right side 103b of the ship.

Features other than the above-described contents are the same as those described in the previous embodiment, so they will be replaced by those.

As described above, the gas fuel propulsion container carrier 1 according to the present invention forms the liquefied gas storage tank 10 in a 'b' form, and is disposed below the cabin 41 to lose the amount of the loading container C. There is an effect that can be minimized.

In addition, the gas fuel propulsion container carrier 1 according to the present invention, the liquefied gas storage tank 10 is formed in the 'b' form and by placing the pump tower 60 in a low position, the pump tower 60 Shorter length of the production and installation cost is reduced and the vibration problem is solved.

Although the present invention has been described in detail through specific examples, it is intended to describe the present invention in detail, and the present invention is not limited thereto, and should be understood by those skilled in the art within the technical spirit of the present invention. It is obvious that the modifications and improvements are possible.

Simple modifications and variations of the present invention all fall within the scope of the present invention, and the specific scope of protection of the present invention will be apparent from the appended claims.

1: gas fuel propulsion container carrier 2: cargo hold
2a: first bay 2b: second bay
2c: first deck strip 3: gas fuel room
3a: first fuel bay 3b: second fuel bay
4: engine room 10: liquefied gas storage tank
10a: first liquefied gas storage unit 10b: second liquefied gas storage unit
11: support 12: second deck strip
13: recess part 20: liquefied gas processing apparatus
30: propulsion engine 41: cabin
42: stack 51a: first short hatch cover
51b: Second short hatch cover 51c: Front first short hatch cover
51d: Front second short hatch cover 51e: Rear first short hatch cover
51f: rear second short hatch cover 52: hatch cover
60: pump tower 61: dome
70: oil storage tank 101: fore part
102: stern part 103a: port port
103b: starboard 104: bottom
104a: bottom
D: upper deck C: container

Claims (10)

A hull having a bay in which the container is received;
An engine room in which a propulsion engine for transmitting power to the hull is accommodated;
A cabin provided in front of the engine room;
A gas fuel supplied to the propulsion engine, the liquefied gas storage tank provided below the cabin,
The container is not loaded between the liquefied gas storage tank and the upper deck,
The dome of the liquefied gas storage tank is exposed over the upper deck,
The cabin,
And a portion positioned in front of the dome and portions positioned to the left and right of the dome, and configured to expose the dome upward. The method of claim 1, wherein the cabin,
The gas fuel propulsion container carrier, characterized in that the upper and rear sides of the pump tower formed on the upper portion of the liquefied gas storage tank is formed so as to surround the '''in the open state. The method of claim 2,
The liquefied gas storage tank is provided, further comprising a gas fuel room formed in the lower side of the cabin,
The liquefied gas storage tank,
A gas fuel propulsion container carrier, which is accommodated in a first fuel bay below the cabin and a second fuel bay provided over the front of the first fuel bay. The method of claim 3, wherein the pump tower,
The gas fuel propulsion container carrier, characterized in that disposed in the position of the first fuel bay in the liquefied gas storage tank. The method of claim 4, wherein the hull,
When drying the cabin and the pump tower, after the ship is dried in a dry dock (dry dock), the gas fuel propulsion container carrier, characterized in that after drying the pump tower from the inner wall. The method of claim 5, wherein the liquefied gas storage tank,
And a single storage tank having a size including the first fuel bay and the second fuel bay. The gas fuel room of claim 6,
A recess having a stepped shape that is lowered from an upper side to a lower side on each of left and right sides; And
The bottom surface of the hull is formed flat and abuts with the bottom of the recess;
The liquefied gas storage tank,
It is formed to have a length occupying a space including the first fuel bay and the second fuel bay in the front and rear direction,
It is formed to have the left and right width of the bottom surface in the left and right directions,
A gas fuel propulsion container carrier which has a height from the bottom surface to less than the upper deck in the vertical direction. The gas fuel room of claim 3,
A gas fuel propulsion container carrier, characterized in that the container is accommodated in at least one of the left or right side of the liquefied gas storage tank. The method of claim 8,
A hatch cover formed on an upper side of the bay; And
Further comprising a short hatch cover formed on the upper side of the second fuel bay,
The short hatch cover,
Gas fuel propulsion container carrier, characterized in that having a width smaller than the left and right width of the hatch cover. The method of claim 9, wherein the short hatch cover,
And a first short hatch cover and a second short hatch cover formed on an upper side of the second fuel bay and formed on the left and right sides of the cabin.

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