KR20210120409A - A liquefied fuel propulsion ship - Google Patents

Abstract

The present invention provides a liquefied fuel propulsion ship, which comprises: a fuel tank provided in a space below the ship cabin in the hull; a fuel supply room disposed in the space between the ship cabin and the fuel tank and provided with fuel supply equipment for processing the liquefied gas stored in the fuel tank; and a tank connection room provided on an upper part of the fuel tank and provided with a pipeline connecting the fuel tank and the fuel supply equipment, and arranged on the same line at one side of the fuel supply room.

Description

Liquefied Gas Propulsion Ship {A LIQUEFIED FUEL PROPULSION SHIP}

The present invention relates to a liquefied gas propulsion vessel, and more particularly, to a liquefied gas propulsion vessel having an improved arrangement structure of a fuel supply room and a tank connection room connected to a fuel tank in a hull.

In general, a ship is a means of transport that carries a large amount of minerals, crude oil, natural gas, or thousands of containers and sails the ocean. Move.

Such ships generate thrust by driving an engine by receiving fuel from a fuel tank. Recently, as environmental problems arise, ships using liquefied gas such as LNG are widely used as fuel.

That is, when heavy oil such as HFO or MFO is used, when heavy oil is burned, environmental pollution caused by various harmful substances contained in exhaust gas is serious. In the case of ships carrying cargo, such as container ships, the liquefied gas fuel supply method in which the engine is driven using liquefied gas fuel is being applied.

In the case of a container ship using liquefied gas as a fuel, a fuel tank may be disposed in a space below a living area where it is difficult to load a container box for efficient space utilization.

In addition, in the case of a vessel using liquefied gas as fuel, it may be exposed to risks such as gas leakage accidents. Many efforts are being made to improve the supply structure.

Patent Publication No. 2018-0076692 (published on July 6, 2018) "Gas fuel propelled container carrier"

In the present invention, the performance of the fuel supply system can be improved by improving the arrangement structure of the liquefied gas propulsion vessel, specifically, the fuel supply room connected to the fuel tank in the hull, the tank connection room, and the bunkering station, and at the same time, gas leakage, etc. To provide a liquefied gas propulsion vessel that can minimize the risk of

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be able

In order to solve the above problems, the present invention is provided with a fuel tank provided in the space below the living part in the hull, the fuel supply equipment disposed in the space between the living part and the fuel tank, and processing the liquefied gas stored in the fuel tank Provided is a liquefied gas propulsion vessel comprising a fuel supply room and a tank connection room provided on the upper part of the fuel tank, having a pipeline connecting the fuel tank and fuel supply equipment, and arranged on the same line at one side of the fuel supply room do.

In addition, the cofferdam is disposed on the upper side of the fuel tank, and the fuel supply room and the tank connection room provide a liquefied gas propulsion vessel provided in the space between the residence and the cofferdam.

In addition, the liquefied gas propulsion ship further comprising a bunkering station provided on the side of the hull on the same line as the fuel supply room and the tank connection room and performing fuel bunkering to the fuel tank through a bunkering line connected to the fuel tank. do.

In addition, the fuel tank provides a liquefied gas propulsion vessel in which the rear toward the stern side of the hull is protruded to the rear than the rear of the accommodation so that maintenance of the fuel tank can be performed from the upper deck side of the hull.

In addition, the fuel supply line further includes a fuel supply line for supplying the liquefied gas vaporized or pressurized in the fuel supply equipment to the engine provided in the hull, and the fuel supply line protrudes above the hull to bypass the cargo hold in the hull and hatches the upper part of the hull. It provides a liquefied gas propulsion vessel provided along.

A liquefied gas propulsion ship according to an embodiment of the present invention, but arranges a fuel supply room and a tank connection room in the space between the living quarters and the fuel tank in the hull, the fuel supply room and the tank connection room are mutually at the same height in the hull By connecting and arranging in an independent space, the pipeline of the tank connection room connected to the fuel supply room can be shortened, so that the fuel supply system can be improved and the risk of gas leakage can be minimized.

In addition, since the fuel supply room and the tank connection room are arranged in an independent space, a ventilation member for ventilation can be jointly used, thereby reducing the installation cost of the ventilation member and facilitating gas discharge in an emergency. have.

The effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned may be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be.

1 shows a side view of a liquefied gas propulsion vessel according to an embodiment of the present invention.
Figure 2 shows a cross-sectional view AA of the liquefied gas propulsion vessel shown in Figure 1.
3 is a plan view illustrating an arrangement structure of a fuel supply room, a tank connection space, and a bunkering station according to an embodiment of the present invention.

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

DETAILED DESCRIPTION The detailed description set forth below in conjunction with the appended drawings is intended to describe exemplary embodiments of the present invention and is not intended to represent the only embodiments in which the present invention may be practiced.

In order to clearly explain the present invention in the drawings, parts irrelevant to the description may be omitted, and the same reference numerals may be used for the same or similar components throughout the specification.

In an embodiment of the present invention, expressions such as “or” and “at least one” may indicate one of the words listed together, or a combination of two or more.

1 is a side view of a liquefied gas propulsion vessel 100 according to an embodiment of the present invention, and FIG. 2 is a AA cross-sectional view of the liquefied gas propulsion vessel 100 shown in FIG. is a plan view illustrating the arrangement structure of the fuel supply room 130 , the tank connection room 140 , and the bunkering station 150 according to an embodiment of the present invention.

Prior to the description, the liquefied gas propulsion vessel 100 according to an embodiment of the present invention is a vessel propelled by using liquefied gas as a fuel, and as a representative embodiment is provided with a fuel tank 120 for storing liquefied gas, a container A liquefied gas propelled container ship 100 for loading cargo such as a box (hereinafter, referred to as a 'container') will be described as an example.

Here, liquefied gas may be used to encompass all liquefied gas fuels that are generally stored in a liquid state, such as LNG, LPG, ethylene, ammonia, etc. In this embodiment, an example of using LNG gas as an example will be described. .

1 to 3 , the liquefied gas propulsion vessel 100 according to an embodiment of the present invention includes a hull 110 , a fuel tank 120 , a fuel supply room 130 , and a tank connection room 140 . and a bunkering station 150 .

The hull 110 forms the exterior of the liquefied gas propulsion container ship 100, and is surrounded by an upper deck, a side shell plate and a bottom plate, and a spherical bow is formed in the forward and backward directions, and a propulsion device such as a propeller and a rudder in the stern, etc. of the steering device may be provided.

A plurality of containers (c) may be loaded inside the hull 110, and for this purpose, a cargo hold 111 may be provided inside the hull 110 in the front-rear direction, and a cell guide (not shown) in the cargo hold 111 . City) may be provided to guide the loading of the container (c).

In addition, a bulkhead (not shown) may be provided in the cargo hold 111 to partition a plurality of bays constituting the cargo hold 111 through the bulkhead (not shown).

In addition, hatch coaming 112 may be provided on the upper deck of the upper part of the cargo hold 111 .

That is, referring to Figure 2, the container ship 100 has a hatch (hatch, not shown) for loading and unloading cargo or a person enters and exits, and also to prevent the intrusion of waves into the dock of the ship 100, etc. A hatch coaming 112, which is a bulkhead, may be installed around the hatch entrance.

Furthermore, a hatch coaming top plate 112a in the form of "a" may be provided on the upper side wall of the hatch coaming 112 .

In the case of the container ship 100, in order to maximize the cargo loading capacity, the space and the machine room where the engine 20, the fuel tank 120 are installed, and the living area 10 where the sailors live, the engine room 21 are installed. A plurality of containers (c) may be loaded on the inside and upper deck of the hull 110 except for the back.

In addition, on the upper deck disposed on the left and right sides in the width direction of the hull 110, a passage way 113 through which a sailor or a worker moves is formed, and the side of the hull 110 under the upper deck and the inside of the bottom of the ship 100 ) may be provided with a ballast tank 30 for maintaining the balance.

The engine 20 provided in the hull 110 may be disposed in the engine room 21 adjacent to the stern side in the interior of the hull 110 to provide propulsion power of the ship 100 .

That is, the engine 20 for propulsion of the vessel 100 is accommodated in the engine room 21 , and the engine 20 is mechanically or electrically connected to the propeller to consume gas fuel and rotate the propeller.

On the other hand, the fuel tank 120 may store liquefied gas fuel such as LNG, and may be spaced apart from the engine 20 on the stern side and disposed at the center of the hull 110 at the lower portion of the habitable port 10 .

That is, in order to secure a view of the control room in the container ship 100 , the residence 10 may be disposed in the central portion of the hull 110 , and thus it is difficult to load the container c for efficient space utilization. The fuel tank 120 may be disposed in the space below the (10).

In addition, referring to FIG. 1 , in this embodiment, the front of the fuel tank 120 facing the bow may be arranged to coincide with the front of the living port 10 , and the rear of the fuel tank 120 is the living port ( 10) may be formed to protrude rearward than the rear surface.

In addition, the pump tower 160 may be provided on the rear side from the upper portion of the fuel tank 120 to optimize the suction performance.

Accordingly, the container (c) may be loaded on the upper portion of the hull 110 on the rear side of the fuel tank 120. When the container (c) is unloaded, the upper portion of the hull 110 becomes empty, and the fuel tank 120 from the upper deck side. and maintenance of peripheral equipment can be easily performed.

In addition, when the fuel tank 120 is disposed in the hull 110 as described above, the dwelling block may be individually mounted regardless of the mounting order during the ship's construction process.

In addition, the liquefied gas stored in the fuel tank 120 may be stored in a liquefied state, and is supplied to the engine 20 through the fuel supply line 40 to be consumed as a propulsion fuel for operating the container ship 100 . can

To this end, the fuel tank 120 may store the liquefied gas in a cryogenic state, and in order to minimize the natural vaporization of the liquefied gas and the change into the boil-off gas, the fuel tank 120 may employ various insulating structures.

In addition, the fuel tank 120 may be formed of a membrane type insulated to minimize the generation of boil-off gas due to external heat intrusion, and in this embodiment, the fuel tank 120 having an octagonal cross-section as an example ) is shown.

In addition, a cofferdam 114 may be disposed above the fuel tank 120 .

That is, since the fuel tank 120 is a configuration for accommodating hazardous substances, in order to implement thermal insulation while protecting the upper housing 10, etc. from the fuel tank 120, a cofferdam ( 114) can be arranged.

The fuel supply room 130 is disposed in the space between the living port 10 and the fuel tank 120 in the hull 110 , and includes a fuel supply equipment 131 for processing the liquefied gas stored in the fuel tank 120 . can do.

Specifically, the fuel supply room 130 is an area in which fuel supply equipment 131 such as a pump, a compressor, and a carburetor connected to a pipeline (not shown) extending from the fuel tank 120 is provided, and the fuel tank 120 . ) may be disposed in the space between the cofferdam 114 and the upper deck disposed on the upper side.

In addition, the fuel supply line 40 connected to the engine 20 provided in the stern of the hull 110 may be connected to the fuel supply equipment 131 .

The tank connection room 140 is provided on the upper portion of the fuel tank 120 and includes a pipeline (not shown) connecting the fuel tank 120 and the fuel supply equipment 131 , and one side of the fuel supply room 130 . may be arranged on the same line.

Here, the fuel tank 120 may be provided with a pump tower 160 including a pipe (not shown) for supplying or discharging liquefied gas into the fuel tank 120 or to the outside, the tank connection room 140 . may be provided on the upper part of the pump tower 160 .

Specifically, the pump tower 160 is vertically disposed inside the fuel tank 120 to protrude through the upper portion of the fuel tank 120 and the cofferdam 114 , and the tank connection room 140 is a pump A pipeline (not shown) provided at the top of the tower 160 and provided in the tank connection room 140 may be connected to a pipe (not shown) in the pump tower 160 .

For example, the tank connection room 140 is formed in a rectangular shape, and may be formed to surround the upper portion of the pump tower 160 , and a pipeline connected to a pipe (not shown) in the pump tower 160 on the inside. (not shown) may be disposed, and a pipeline (not shown) connected to the pump tower 160 is disposed on one side of the tank connection room 140 on the same line as the fuel supply equipment 131 of the fuel supply room 130 . ) can be associated with

Accordingly, as shown in FIG. 2 , a fuel supply room 130 and a tank connection room 140 are provided in the space between the upper deck under the residence 10 and the cofferdam 114 on the upper side of the fuel tank 120 . In this embodiment, as an example, the fuel supply room 130 and the tank connection room 140 may be connected and disposed on the left side based on the center of the hull 110 in which the pump tower 160 is installed.

As such, in this embodiment, the fuel supply room 130 and the tank connection room 140 are interconnected at the same height within the hull 110 and arranged in an independent space, which is required by the International Gas Carrier Standard (IGC CODE). can satisfy the arrangement criteria of the fuel supply room 130 and the tank connection room 140, and form a pipeline (not shown) of the tank connection room 140 connected to the fuel supply room 130 with the shortest distance It can be simplified, so that the fuel supply system can be improved, while the risk of gas leakage and the like can be minimized.

In addition, since the fuel supply room 130 and the tank connection room 140 are interconnected and disposed in an independent space, a ventilation member (not shown) for ventilation can be jointly used, so that the ventilation member (not shown) Installation cost can be reduced, and gas discharge can be facilitated in case of emergency.

In this case, the ventilation member (not shown) may include a duct line and a fan, and may be provided in a space between the residence 10 and the fuel tank 120 .

On the other hand, referring to FIGS. 1 and 2 , the liquefied gas stored in the fuel tank 120 is discharged through the pump tower 160 to the fuel supply room 130 along the pipeline (not shown) of the tank connection room 140 . ) may be introduced into the fuel supply equipment 131 provided in the fuel supply equipment 131 , and may be vaporized or pressurized in the fuel supply equipment 131 and supplied to the engine 20 through the fuel supply line 40 .

In this embodiment, as an example, the fuel supply line 40 protrudes above the hull 110 so as to bypass the cargo hold 111 in the hull 110 on which the container c is loaded, and hatch coaming of the upper part of the hull 110 . It may be disposed along (112).

That is, in order to increase the loading efficiency of the container (c) in the hull 110, the fuel supply line 40 connected between the engine 20 and the fuel supply room 130 is protruded to the upper portion of the hull 110 to the hull. (110) By receiving and disposing inside the top plate 112a of the hatch coaming 112 installed on the upper part, it is possible to prevent interference with the container (c) in the cargo hold 111, and at the same time increase the loading space, , it is possible to safely protect the fuel supply line 40 from the outside.

Specifically, the fuel supply line 40 extends from the fuel supply room 130 to the hatch coaming 112 on the upper part of the hull 110 , and is bent at the extended end to be horizontal along the inside of the hatch coaming top plate 112a. By being bent at the extended end and connected to the engine 20 , it may be formed to bypass the cargo hold 111 in the hull 110 .

Meanwhile, referring to FIGS. 2 and 3 , a bunkering station 150 for performing fuel bunkering to the fuel tank 120 may be provided on the side portion of the hull 110 .

The bunkering station 150 may include a gas filling port and the like, and may be connected to the pump tower 160 of the fuel tank 120 through the bunkering line 161 .

In addition, the bunkering station 150 is disposed at the same height as the moving passage 113 formed on the upper deck side of the hull 110 side part, and the fuel supply room 130 and the tank connection room 140 are on the same line as the hull 110. may be disposed on the side of the

As described above, the bunkering station 150 disposed on the side of the hull 110 can satisfy the position of the bunkering station 150 according to the international standard, so that it is perfectly compatible with the manifold provided for refueling the general-purpose bunkering vessel. There are advantages that can be

As described above, in the liquefied gas propulsion vessel according to an embodiment of the present invention, the fuel supply room 130 and the tank connection room are located in the space between the residence 10 and the fuel tank 120 in the hull 110 . By disposing 140 , the fuel supply room 130 and the tank connection room 140 are interconnected at the same height within the hull 110 and arranged in an independent space, the tank connected to the fuel supply room 130 . It is possible to shorten the pipeline (not shown) of the connection room 140 , thereby improving the fuel supply system and minimizing the risk of gas leakage.

In addition, since the fuel supply room 130 and the tank connection room 140 are disposed in independent spaces, a ventilation member (not shown) for ventilation can be jointly used, thereby reducing the installation cost of the ventilation member (not shown). It can save money and facilitate gas discharge in case of an emergency.

Embodiments of the present invention disclosed in the present specification and drawings are merely provided for specific examples in order to easily explain the technical contents of the present invention and help the understanding of the present invention, and are not intended to limit the scope of the present invention.

Therefore, the scope of the present invention should be construed as including all changes or modifications derived based on the technical spirit of the present invention in addition to the embodiments disclosed herein are included in the scope of the present invention.

100: liquefied gas propulsion ship 110: hull
120: fuel tank 130: fuel supply room
131: fuel supply equipment 140: tank connection room
150: bunkering station 160: pump tower

Claims (5)

a fuel tank provided in the space below the living quarters in the hull;
a fuel supply room disposed in a space between the living port and the fuel tank and having a fuel supply device for processing the liquefied gas stored in the fuel tank; and
A liquefied gas propulsion vessel comprising a tank connection room provided on the upper portion of the fuel tank and provided with a pipeline connecting the fuel tank and the fuel supply equipment, and disposed on the same line at one side of the fuel supply room.
The method of claim 1,
A cofferdam is disposed on the upper side of the fuel tank,
The fuel supply room and the tank connection room is a liquefied gas propulsion vessel provided in a space between the residence and the cofferdam.
The method of claim 1,
Liquefied gas propulsion further comprising a bunkering station provided on the side surface of the hull on the same line as the fuel supply room and the tank connection room and performing fuel bunkering to the fuel tank through a bunkering line connected to the fuel tank. Ship.
The method of claim 1,
The fuel tank is
A liquefied gas propulsion vessel in which a rear surface facing the stern side of the hull is provided to protrude rearward than the rear surface of the accommodation so as to perform maintenance of the fuel tank from the upper deck side of the hull.
The method of claim 1,
Further comprising a fuel supply line for supplying the liquefied gas vaporized or pressurized in the fuel supply equipment to the engine provided in the hull,
The fuel supply line protrudes above the hull to bypass the cargo hold in the hull and is provided along the hatch coaming of the upper hull.

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