CN111634367A

CN111634367A - Dual-fuel bulk cargo ship

Info

Publication number: CN111634367A
Application number: CN202010504553.6A
Authority: CN
Inventors: 刘英良; 次洪恩; 樊向东
Original assignee: 708th Research Institute of CSIC
Current assignee: 708th Research Institute of CSIC
Priority date: 2020-06-05
Filing date: 2020-06-05
Publication date: 2020-09-08

Abstract

The invention relates to a dual-fuel bulk carrier, belonging to the technical field of ship design; comprises an upper building, an upper deck, a gas fuel cabin, a fuel oil storage cabin, a cargo cabin and a cabin; an upper deck of the dual-fuel bulk cargo ship close to the stern is provided with an superstructure, a cabin is arranged in the ship body below the superstructure, and a cargo hold is arranged in the ship body between the cabin and the bow of the dual-fuel bulk cargo ship; the upper deck of the superstructure on one side close to the bow is provided with a gas fuel cabin, and the inside of the ship body below the gas fuel cabin is provided with a fuel storage cabin. The invention solves the problem that the gas fuel cabin of the dual-fuel bulk cargo ship occupies larger space of the cargo cabin and the engine cabin, and realizes the reasonable arrangement of the LNG tank on the ship under the condition of not influencing the capacity of the cargo cabin and the arrangement of the engine cabin. The operation economy of the ship is improved, the emission of greenhouse gases is reduced, and the purposes of energy conservation and emission reduction of the ship are achieved.

Description

Dual-fuel bulk cargo ship

Technical Field

The invention relates to a dual-fuel bulk cargo ship, and belongs to the technical field of ship design.

Background

Ships have traditionally used oil, heavy oil (HFO) or diesel oil (MDO) as propulsion fuel. Compared with other fossil fuels, natural gas is considered as a clean energy source because only a small amount of carbon dioxide and a very small amount of nitrogen oxides are emitted when being combusted. Therefore, natural gas as a marine fuel is considered to be an effective greenhouse gas emission reduction measure. In recent years, the international society has a strong demand for energy conservation and emission reduction, a series of regulations and rules are provided, and under the large background, the problems of energy conservation and emission of the traditional transport ship are more and more obvious. The traditional fuel oil contains higher carbon and sulfur contents, so that the search for new clean energy and the reduction of the emission of sulfur oxides become the direction of research in the marine industry. The liquefied natural gas is colorless, tasteless, nontoxic and noncorrosive, and only generates two common components in the atmosphere of carbon dioxide and water vapor after combustion due to high heat value, so the liquefied natural gas is an ideal green energy source. Therefore, the adoption of Liquefied Natural Gas (LNG) as a ship fuel has extremely important significance.

Due to the drastic fluctuations in oil and gas prices, many shippers need vessels that can use both types of fuel in order to reduce operational risks. However, the different characteristics of the two types of fuel bring difficulties to the design of ships. In the existing dual-fuel ship and related designs, an LNG (liquefied natural gas) cabin is arranged between a cabin and a cargo hold or is arranged in a cabin or cargo hold space by using a C-shaped tank, the arrangement of the LNG cabin is greatly influenced without exception, or the LNG cabin is arranged above a tail mooring deck, the fuel hold space is limited, and the implementation of the overall arrangement scheme is limited. There is therefore a need in the art to solve the problem of how to achieve a rational arrangement of LNG tanks on board a ship, producing a ship that uses both types of fuel, without affecting the hold capacity and cabin arrangement of the hold.

Disclosure of Invention

The invention aims to solve the technical problem of how to realize reasonable arrangement of LNG tanks on a ship under the condition of not influencing the capacity and arrangement of a cargo cabin.

In order to solve the problems, the technical scheme adopted by the invention is to provide a dual-fuel bulk cargo ship, which comprises an upper-layer building, an upper deck, a gas fuel tank, a fuel oil storage tank, a cargo hold and a cabin; an upper deck of the dual-fuel bulk cargo ship close to the stern is provided with an superstructure, a cabin is arranged in the ship body below the superstructure, and a cargo hold is arranged in the ship body between the cabin and the bow of the dual-fuel bulk cargo ship; and a gas fuel cabin is arranged on the upper deck on one side of the superstructure close to the bow, and a fuel storage cabin is arranged in the hull below the gas fuel cabin.

Preferably, a fuel storage cabin is arranged between the upper deck and the upper parts of the cabin and the cargo hold.

Preferably, the gas fuel tank is provided between the superstructure and the cargo hold.

Preferably, the gas fuel compartment is provided as a single C-tank and the gas fuel compartment is provided as a separate compartment.

Preferably, the length direction of the gas fuel tank is set to be arranged along the width direction of the hull of the dual-fuel bulk carrier.

Preferably, the gas fuel tank is internally provided with a sloshing structure for reducing the influence of the sloshing of the ship body on the component.

Preferably, the bottom of the gas fuel tank is arranged above a transverse bulkhead provided in alignment with the hull.

Preferably, a gas treatment chamber is arranged below the gas fuel chamber and above the upper deck.

Preferably, a gas station for filling liquefied gas is arranged on the upper deck of one side of the gas fuel tank close to the bow; the superstructure is provided with a cab and a living cabin.

Preferably, the gas fuel tank is provided with structural members for support at the periphery thereof, and is connected with the cargo hold, the deck and the hull casing below through the structural support members.

Compared with the prior art, the invention has the following beneficial effects:

the invention provides a dual-fuel bulk cargo ship aiming at the technical problems in the prior art. Through the reasonable arrangement of the two types of fuel cabins with different properties, the use of two types of fuels can be considered, the economic efficiency of ship operation is improved, the environmental protection requirement is met, and the emission of greenhouse gases is reduced.

1. The arrangement of the gas fuel cabin does not occupy the space of the cargo hold, and the hold capacity is not lost;

2. the arrangement of the gas fuel cabin has no influence on the arrangement of the engine room, is more suitable for the double-fuel ship type (has no influence on fuel daily-use cabins and the like), and meets the requirements of a shipowner on using various oil products;

3. the lower part of the gas fuel tank body is opposite to the transverse bulkhead, so that the structure is reinforced;

4. the gas fuel cabin is a single tank body, so that the tank body materials including 9Ni steel, insulation and the like are saved; LNG system materials such as LNG pumps and the like are saved;

5. the gas fuel cabin is arranged in front of the superstructure, does not face a danger escape passage, and the tank body does not need to be shielded by a steel enclosure wall, so that the weight of the ship body is saved to optimize the overall arrangement;

6. the gas fuel cabin is far away from the air inlet and the air outlet of the cabin, so that no danger area interference exists;

7. the gas fuel cabin is close to the engine room, the length of LNG related piping is small, the cost is saved, and the arrangement difficulty is reduced;

8. the ship body line type of the gas fuel cabin corresponding to the upper deck does not need to be additionally widened, and the hydrodynamic performance is not adversely affected.

Drawings

FIG. 1 is a side view of a dual fuel bulk carrier of the present invention;

FIG. 2 is a schematic top view of a gas fuel tank of a dual fuel bulk carrier of the present invention;

FIG. 3 is a schematic illustration of a gaseous fuel tank of a dual fuel bulk carrier of the present invention in elevation;

reference numerals: 1. a hull; 2. building the upper layer; 3. a cargo compartment; 4. a nacelle; 5. a fuel storage compartment; 6. a gas fuel compartment; 7. a support structure; 8. a gas processing chamber; 9. a gas station; 10. an upper deck; 11. a cargo compartment cover;

Detailed Description

In order to make the invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings:

as shown in fig. 1 to 3, the present invention provides a dual fuel bulk carrier, which includes an upper building 2, an upper deck 10, a gas fuel tank 6, a fuel storage tank 5, a cargo tank 3, and a cabin 4; an upper deck 10 of the dual-fuel bulk cargo ship close to the stern is provided with an superstructure 2, a cabin 4 is arranged inside a ship body 1 below the superstructure 2, and a cargo hold 3 is arranged inside the ship body 1 between the cabin 4 and the bow of the dual-fuel bulk cargo ship; a gas fuel cabin 6 is arranged on an upper deck 10 on one side of the superstructure 2 close to the bow of the ship, and a fuel storage cabin 5 is arranged inside the ship body below the gas fuel cabin 6. A fuel storage tank 5 is arranged between the upper part of the upper deck 10 and the upper part of the cabin 4 and the cargo hold 3. A gas fuel tank 6 is provided between the superstructure 2 and the cargo hold 3. The gas fuel compartment 6 is provided as a single C-tank, and the gas fuel compartment 6 is provided as an independent compartment. The gas fuel tank 6 is provided in the length direction to be arranged in the width direction of the hull 1 of the dual fuel bulk carrier. The gas fuel tank 6 is provided with a sloshing structure for reducing the influence of the sloshing of the hull on the members. The bottom of the gas fuel tank 6 is arranged above a transverse bulkhead provided in alignment with the hull 1. A gas treatment chamber 8 is provided below the gas fuel chamber 6 and above the upper deck 10. A gas station 9 for filling liquefied gas is arranged on an upper deck 10 of the gas fuel cabin 6 close to the bow; the superstructure 2 is provided with a cab and a living room. Structural members 7 for supporting are arranged around the gas fuel tank 6, and the gas fuel tank 6 is connected with the cargo hold 3, the deck and the hull shell below through the supporting structural members 7.

As shown in fig. 1 to 3, the present invention provides a dual fuel bulk carrier, which includes an upper building 2, an upper deck 10, a gas fuel tank 6, a fuel storage tank 5, a cargo tank 3, and a cabin 4; an upper building 2 is arranged above an upper deck 10 of the dual-fuel bulk cargo ship close to the stern; a gas fuel tank 6 for storing liquefied gas is arranged above the upper deck 10 and between the front of the superstructure 2 and the cargo hold 3; fuel oil storage cabins 5 are arranged in the areas of the cargo cabin 3 and the engine cabin 4; an engine room 4 is arranged below an upper deck 10 of the double fuel ship close to the stern; a cargo hold 3 is arranged below the gas fuel tank 6; a structural supporting part 7 is arranged below the gas fuel cabin 6, and the gas fuel cabin is connected with the surrounding cargo hold and deck through the structural supporting part 7; the gas fuel tanks 6 are arranged above the upper deck 10 and between the upper building 2 and the cargo holds 3; the gas fuel cabin 6 adopts a single C-shaped tank, and the gas fuel cabin 6 is an independent cabin; the gas fuel tank 6 is arranged along the width direction of the ship, and the space of a deck can be fully utilized; the bottom of the gas fuel cabin 6 is aligned with the transverse cabin wall, so that the ship body is reinforced; the gas processing compartment 8 is arranged below the gas fuel compartment 6 and above the upper deck 10; a gas filling station 9 for injecting liquefied gas is arranged in front of the gas fuel cabin 6 and above the upper deck; the superstructure 2 is arranged at the tail part of an upper deck 10 of the dual-fuel bulk cargo ship, and a cab and a living cabin are arranged in the superstructure 2.

FIG. 1 is a side view of an embodiment of a dual fuel bulk carrier of the present invention, and FIG. 2 is a top view of a gaseous fuel tank of a preferred embodiment of the present invention;

referring to fig. 1, the dual fuel bulk carrier includes a hull 1, a superstructure 2, a cargo compartment area 3, a cabin area 4, a fuel storage compartment 5, a gas fuel compartment 6, a support structure 7, a gas treatment compartment 8, a gas station 9, an upper deck 10, a cargo compartment cover 11; the gas fuel tank 6 is a single C-shaped tank, so that the weight and the material of the gas fuel tank are saved, and LNG system equipment is greatly saved; a gas processing cabin 8 is arranged below the gas fuel cabin 6 and in front of the superstructure 2, so that the deck space is effectively utilized, and the pipeline is short; the gas fuel cabin 6 is positioned above the cabin area 4, the corresponding pipeline design is simple, the pipeline length is short, and the amount of the fuel is saved; the gas fuel tank 6 is arranged along the width direction of the ship, and effectively utilizes the space between the front of the superstructure 2 and the cargo hold 3; the bottom of the gas fuel cabin 6 is aligned with a transverse cabin wall between the engine cabin and the cargo cabin, so that the ship body is strengthened; in front of the gas bunker 6, between the cargo compartment areas 3, a filling station 9 for liquefied gas injection is provided, through which filling station 9 a filling line extends backwards over the cargo compartment lid 11 to the gas bunker 6; the fuel oil storage cabin 5 is positioned in the cabin 4 area and on two sides of the cargo hold 3 area; an engine room 4 is arranged below the area of an upper deck 10 at the tail part of the dual-fuel bulk carrier; the main engine of the dual-fuel bulk cargo ship is a dual-fuel main engine and can adopt natural gas and fuel oil as fuel. The liquefied gas is stored in the gas fuel tank 6.

While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.

Claims

1. A dual-fuel bulk carrier is characterized in that: comprises an upper building, an upper deck, a gas fuel cabin, a fuel oil storage cabin, a cargo cabin and a cabin; an upper deck of the dual-fuel bulk cargo ship close to the stern is provided with an superstructure, a cabin is arranged in the ship body below the superstructure, and a cargo hold is arranged in the ship body between the cabin and the bow of the dual-fuel bulk cargo ship; and a gas fuel cabin is arranged on the upper deck on one side of the superstructure close to the bow, and a fuel storage cabin is arranged in the hull below the gas fuel cabin.

2. A dual fuel bulk carrier as claimed in claim 1, characterized in that: and a fuel oil storage cabin is arranged between the upper part of the cabin and the cargo cabin and the upper deck.

3. A dual fuel bulk carrier as claimed in claim 2, characterized in that: the gas fuel tank is arranged between the superstructure and the cargo hold.

4. A dual fuel bulk carrier as claimed in claim 3, characterized in that: the gas fuel compartment is a single C-shaped tank, and the gas fuel compartment is an independent compartment.

5. A dual fuel bulk carrier as claimed in claim 4, characterized in that: the length direction of the gas fuel tank is set to be arranged along the width direction of the hull of the dual-fuel bulk cargo ship.

6. A dual fuel bulk carrier as claimed in claim 5, characterized in that: and a vibration suppressing structure for reducing the influence of the shaking of the ship body on the component is arranged in the gas fuel tank.

7. A dual fuel bulk carrier as claimed in claim 6, characterized in that: the bottom of the gas fuel tank is arranged to be aligned above a transverse bulkhead arranged on the ship body.

8. A dual fuel bulk carrier as claimed in claim 7, characterized in that: and gas treatment cabins are arranged below the gas fuel cabin and above the upper deck.

9. A dual fuel bulk carrier as claimed in claim 8, characterized in that: a gas station for filling liquefied gas is arranged on the upper deck of one side of the gas fuel cabin close to the bow; the superstructure is provided with a cab and a living cabin.

10. A dual fuel bulk carrier as claimed in claim 9, characterized in that: the gas fuel cabin is provided with structural members for supporting, and is connected with a cargo hold, a deck and a hull shell below through structural supporting members.