KR20240058370A - Bunkering Vessel capable of charging multiple fuels - Google Patents

Abstract

The present invention relates to a composite bunkering ship for recharging at sea the fuel required for eco-friendly ships that use eco-friendly fuels such as LNG, LPG, ammonia, ethanol (or methanol) and electricity as energy, and is installed on the inside of the hull 100. a plurality of fuel storage tanks (110, 120, 130, 140) for storing fuel including LNG, LPG, alcohol (methanol or ethanol), and ammonia, respectively; a power generation and electricity storage unit (150) for generating and storing electricity with the fuel stored in the fuel storage tanks (110, 120, 130, 140); A partition 200 for spatially isolating between the plurality of fuel storage tanks 110, 120, 130, 140 and the power generation and electricity storage 150; A plurality of safety sensors (without shown) and generates an alarm when an abnormal situation occurs by signals detected by the plurality of safety sensors, supplies fuel stored in each fuel storage tank and electricity from the electric storage to the ship, and recharges fuel in each fuel storage tank. It consists of a control unit (installed inside the bridge 160) that controls the status of the ship.

Description

Bunkering Vessel capable of charging multiple fuels}

The present invention provides the fuel required for various types of eco-friendly ships that use eco-friendly fuels such as LNG, LPG, ammonia, alcohol (ethanol or methanol) and electricity as energy, directly through STS (SHIP TO SHIP) in ports and on the high seas. It is about a complex bunkering ship to do this.

As environmental regulations have recently been strengthened, the use of liquefied natural gas, which is close to eco-friendly fuel, is increasing among various fuels. Liquefied natural gas is generally transported via LNG carriers. In this case, liquefied natural gas can be stored in the tank of an LNG carrier in a liquid state by lowering the temperature to -162°C or lower under 1 atm. When liquefied natural gas is in a liquid state, its volume is reduced to 1/600 compared to its gaseous state, so transportation efficiency can be increased.

Meanwhile, the International Maritime Organization (IMO) has strengthened the sulfur oxide content standard for ship fuel from 3.5% to less than 0.5% starting in 2020. Greenhouse gas emissions levels must be reduced by 40% by 2030 compared to 2008, and by 2050, emissions must be reduced by 50% compared to 2008. Accordingly, the government revised the ‘Enforcement Decree of the Marine Environment Management Act’ in 2019 and strengthened the sulfur content standards. In addition, we are promoting the enactment and revision of laws to develop and expand the development and distribution of eco-friendly ships such as LNG fuel ships, establish a foundation for LNG bunkering, and establish environmental regulations in accordance with international standards.

Accordingly, technology has been developed to use LNG, which is close to eco-friendly fuel, as fuel for ships operating at sea, moving away from the existing bunker C oil or heavy oil. In addition, gases such as LPG, methanol, ethanol, and ammonia are used. Alternatively, there is a shift toward using electricity as energy.

Meanwhile, as ships using various types of fuel gradually appear, facilities for supplying fuel to these ships must be equipped accordingly, but it is difficult to dock and recharge fuel at a terminal (base) provided on land by securing docking space and charging. Not only is securing a site to install facilities a major problem, but there are also problems such as excessive waiting time for receiving vessels to dock and recharge fuel, so floating bunkers or so-called STS (STS) are required. It would be most desirable to perform bunkering in ports and on the high seas using the SHIP TO SHIP method in terms of speed, safety, and economic efficiency.

Korean Patent No. 10-0991994 (registered on October 20, 2010) Korean Patent Publication No. 10-2015-0068062 (published on June 19, 2015) Korean Patent Publication No. 10-2015-0120727 (published on October 28, 2015) Korean Patent Publication No. 10-2017-0120862 (published on November 1, 2017) Korean Patent Publication No. 10-2019-0114461 (published on October 10, 2019) Korean Patent Publication No. 0-2021-0045328 (published on April 26, 2021)

The present invention was created to solve the above-mentioned problems, and the purpose of the present invention is to provide various types of eco-friendly fuels so that the eco-friendly fuels required by various eco-friendly ships using different eco-friendly fuels can be immediately supplied in ports and on the high seas. The purpose is to provide a composite bunkering ship that is simultaneously equipped with.

In order to achieve the above object, the present invention includes a plurality of fuel storage tanks for storing fuel including LNG, LPG, alcohol (methanol or ethanol), and ammonia, respectively, inside the hull; a power generation and electricity storage facility for generating and storing electricity using the fuel stored in the fuel storage tank; a partition wall for spatially isolating between the plurality of fuel storage tanks and between power generation and electricity storage; A plurality of safety sensors installed in a plurality of spaces isolated by the partition wall to detect fuel leakage from a fuel storage tank or a fire in an electric storage tank, and when an abnormal situation occurs due to signals detected by the plurality of safety sensors A control unit that generates an alarm, supplies fuel stored in each fuel storage tank and electricity from the electric storage to the ship, and controls the state of recharging fuel in each fuel storage tank; a complex capable of charging various types of fuel, including Bunkering ships are provided.

According to the present invention, the fuel required for each eco-friendly ship with different fuel needs can be quickly supplied at the port or on the high seas by using a single bunkering ship at sea or in the port, so the corresponding fuel supply facility is provided for the eco-friendly ship to receive fuel. Since there is no need to dock on land, congestion and waiting time that may occur during the docking process can be reduced, as well as the complexity of water operation can be resolved, and there is a useful effect of not having to set up a separate fuel supply facility close to the dock. There is.

1 is a side cross-sectional view of a composite bunkering ship according to the present invention;
Figure 2 is a plan view of the composite bunkering ship shown in Figure 1.

Hereinafter, preferred embodiments that do not limit the present invention will be described in detail with reference to the attached drawings.

The objectives, specific advantages and novel features of the present invention will become more apparent from the following detailed description and preferred embodiments taken in conjunction with the accompanying drawings. In this specification, when adding reference numbers to components in each drawing, it should be noted that identical components are given the same number as much as possible even if they are shown in different drawings. Additionally, in describing the present invention, if it is determined that a detailed description of related known technologies may unnecessarily obscure the gist of the present invention, the detailed description will be omitted.

Hereinafter, the 'bunkering ship' can receive various eco-friendly fuels such as liquefied gas from liquefied gas suppliers such as terminals, platforms, ports, and other bunkering ships, and load and unload them into the fuel storage tank of the bunkering target, and the stored liquefied It refers to a ship that can use fuel such as gas or electricity obtained by operating a generator with these fuels as an energy source.

1 and 2 show a composite bunkering ship 1 according to the present invention, which stores fuel including LNG, LPG, alcohol (methanol or ethanol), and ammonia inside the hull 100, respectively. A plurality of fuel storage tanks (110, 120, 130, 140) for;

a power generation and electricity storage unit (150) for generating and storing electricity with the fuel stored in the fuel storage tanks (110, 120, 130, 140);

A partition 200 for spatially isolating between the plurality of fuel storage tanks 110, 120, 130, 140 and the power generation and electricity storage 150;

A plurality of safety sensors (without shown) and generates an alarm when an abnormal situation occurs by signals detected by the plurality of safety sensors, supplies fuel stored in each fuel storage tank and electricity from the electric storage to the ship, and recharges fuel in each fuel storage tank. It consists of a control unit (installed inside the bridge 160) that controls the status of the ship.

In the present invention, it is preferable for safety that the fuel storage tanks (110, 120, 130, 140) have a spherical shape as shown in the drawing, and the inside of the fuel storage tanks (110, 120, 130, 140) is damaged by waves when the bunkering ship (1) is operated. When the hull is shaken due to rolling, pitching, or yawing, the internal fuel is excessively sloshed, preventing the vessel from losing its balance in the forward, forward, and left and right directions, and at the same time preventing vaporization due to excessive sloshing of the fuel. Baffle plates 114 with perforated holes 112 are installed at regular intervals up and down.

In addition, the baffle plate 114 and the perforated hole 112 are also used for inspectors to enter and exit when inspecting the inside of the gas storage tank, and the size and arrangement of the perforated hole 112 take this into account. You just need to design it appropriately.

In the embodiment shown in the drawing, the fuel storage tank is spherical and has a structure similar to a Moss-type ship. However, in the case of fuel that does not require internal pressure, it is manufactured in the form of a membrane tank instead of a sphere or a plurality of long tanks. Of course, it can be manufactured in the form of a pipe, and each fuel storage tank must be designed to maintain fuel stability depending on the type of fuel being received.

The partition 200 protects the fuel storage tanks 110, 120, 130, and 140 from external shocks and acts as a physical barrier to prevent fuel mixing in the event of a leak of fuel stored in each fuel storage tank. The partition wall ( 200) is installed not only between the fuel storage tanks but also on the left and right sides of the fuel storage tanks, and an entrance door 220 is installed on the partition wall 210 on the side.

The access door 220 must maintain airtightness and robustness to function stably as a partition in a closed state, and maintain facilities installed in the fuel storage tank and internal isolation spaces (S1, S2, S3, S4, S5). It should be opened during repairs and kept completely blocked during normal times.

In the present invention, the partition walls (200, 210) must be designed to a height that can sufficiently isolate the fuel storage tank, and the material of the partition wall is basically a steel plate, and it is necessary to use a composite material to ensure insulation and fire resistance. , the bulkhead and the fuel storage tank must be designed to be spaced at a certain distance to prevent shock from the outside being transmitted directly to the fuel storage tank.

The bunkering ship according to the present invention is directly supplied at sea to eco-friendly ships using the STS (SHIP TO SHIP) method, and electric charging is also carried out at sea using the STS method, preventing various safety accidents that may occur during the bunkering process. In the event of an accident, means must be prepared for immediate disaster recovery.

Meanwhile, in the present invention, the generator generates power using fuel stored in the fuel storage tank of the bunker ship, and the electricity is stored in the battery and then charged to the main ship. In addition to electricity, the generator is generated using boil-off gas recovered when fuel is supplied to the main ship. It is desirable to operate it so that it can produce electricity.

In addition, the bunkering ship according to the present invention also uses eco-friendly fuel stored in the above-mentioned fuel storage tank without using heavy oil or bunker C oil, or is manufactured as an electric propulsion ship to operate with electricity stored in the battery, so the bunkering ship itself is eco-friendly. It is desirable to solidify its position as a ship and to provide various safety facilities to prevent problems with fuel leakage or marine pollution that may occur during the STS-type bunkering process.

In the drawing of the present invention, the liquid transfer equipment and boil-off gas recovery equipment for charging fuel from the terminal to the bunkering ship and supplying fuel from the bunkering ship to the main ship are not specifically shown, but these liquid transfer equipment and boil-off gas recovery equipment are Since this is self-evident to those skilled in the art to which the present invention pertains, detailed illustration and description thereof will be omitted.

1: Bunkering ship
100: hull
110,120,130,140: Fuel storage tank
150: Power generation and electricity storage
152: Generator
154: battery
160: Bridge (control unit)
112: perforated hole
114: baffle plate
200: Bulkhead
210: Bulkhead (side)
220: Entrance door

Claims (3)

A plurality of fuel storage tanks (110, 120, 130, 140) for storing fuel including LNG, LPG, alcohol (methanol or ethanol), and ammonia, respectively, inside the hull 100;
a power generation and electricity storage unit (150) for generating and storing electricity with the fuel stored in the fuel storage tanks (110, 120, 130, 140);
A partition 200 for spatially isolating between the plurality of fuel storage tanks 110, 120, 130, 140 and the power generation and electricity storage 150;
A plurality of safety sensors installed in a plurality of spaces (S1, S2, S3, S4, S5) isolated by the partition wall 200 to detect fuel leakage from a fuel storage tank or detect a fire in an electric storage tank, An alarm is generated when an abnormal situation occurs by signals detected by the plurality of safety sensors, and the fuel stored in each fuel storage tank and electricity from the electric storage are supplied to the ship and the state of recharging fuel in each fuel storage tank is controlled. A complex bunkering ship capable of charging various types of fuel, comprising a control unit.
In claim 1,
Inside the fuel storage tanks (110, 120, 130, 140), when the hull is shaken, the fuel inside is excessively sloshed around, thereby preventing the balance of the ship in the forward, backward, and left and right directions from being lost, and at the same time, the vaporization phenomenon caused by the excessive sloshing of the fuel. A composite bunkering ship capable of charging various types of fuel, characterized in that baffle plates 114 with perforated holes 112 are installed at regular intervals up and down to prevent.
In claim 1,
The partition wall 200 is installed between the fuel storage tanks 110, 120, 130, and 140 and on the left and right sides of the fuel storage tanks 110, 120, 130, and 140. An entrance door 220 is installed on the partition wall 210 on the side, and the partition wall 200, 210 and the fuel storage tank 200 are installed. A complex bunkering ship capable of charging various types of fuel, characterized in that the tanks (110, 120, 130, and 140) are spaced apart at a predetermined interval.