WO2023010884A1

WO2023010884A1 - Ammonia fuel transporting and filling ship

Info

Publication number: WO2023010884A1
Application number: PCT/CN2022/086414
Authority: WO
Inventors: 柳一点; 陈兵; 张道志; 郑双燕; 蒋雄健; 柳梦源; 李晓姣
Original assignee: 江南造船(集团)有限责任公司
Priority date: 2021-08-02
Filing date: 2022-04-12
Publication date: 2023-02-09
Also published as: KR20240032109A; CN113619734B; CN113619734A

Abstract

An ammonia fuel transporting and filling ship, comprising a ship body (1), a plurality of independent cabins fixed to the ship body (1), a liquid cargo header pipe (2) and a filling header pipe (3) which are connected to each independent cabin, and a leakage treatment device mounted on the side of the liquid cargo header pipe (2) and the filling header pipe (3) on each independent cabin. The leakage treatment device comprises a gas detection station (4) mounted on the side of the liquid cargo header pipe (2) and the filling header pipe (3), and a washing tower (5) mounted on the ship body (1); and the washing range of the washing tower (5) covers the liquid cargo header pipe (2) and the filling header pipe (3). By means of the ship, the risk of personnel poisoning caused by ammonia fuel leakage is reduced.

Description

An ammonia fuel transportation and bunkering ship

technical field

The invention relates to the field of ship clean energy transportation and filling equipment, in particular to an ammonia fuel transportation and filling ship.

Background technique

With the advancement of science and technology, the development of industrialization is getting faster and faster, but it has brought about the excessive emission of carbon dioxide, and the greenhouse gas effect has become more and more obvious. In order to achieve the ambitious goal of reducing the total amount of greenhouse gas emissions by at least 50% on the basis of 2008 by 2050, it is very necessary to use low-carbon or zero-carbon fuels. Ammonia fuel, hydrogen fuel, nuclear energy, etc. are considered to be one of the most representative zero-carbon energy sources in the future shipping industry. Among them, ammonia fuel has a low transportation cost and high safety. It is foreseeable that in the past 10 years, ammonia fuel will become more It is easy to achieve commercialization and large-scale application.

Compared with hydrogen, ammonia has the following advantages:

1. Ammonia fuel is easy to transport, and can be liquefied and stored when the transport temperature is lower than -34.5 degrees Celsius. At the same time, it can also reach a liquefied storage state under a certain pressure condition (8-10bar) in a normal temperature environment.

2. Ammonia fuel has greater energy density. Based on the same ship endurance requirements, the tank capacity required for ammonia fuel is basically three-fifths of hydrogen fuel. The arrangement of the ship can thus be facilitated.

3. The storage characteristics of ammonia fuel enable it to be well stored in various types of independent tanks. At the same time, anhydrous ammonia has a very small flash point range, so it is generally considered to have a very low risk of explosion protection.

However, ammonia itself is colorless, transparent, toxic and has a very active molecular structure. As a result, during the transportation and storage of ammonia fuel, if it leaks, it is not easy to find, and it is toxic and will cause irreparable losses to personnel. Therefore, the international bulk The Liquefied Gas Carrier Convention has very strict restrictions on the transportation of ammonia. It must consider minimizing the risk of personnel being poisoned by ammonia leakage. This shortcoming also makes the use of ammonia fuel not common enough.

At the same time, the receiving ships (ultra-large container ships, bulk carriers, oil tankers, etc.) are also currently facing the problem of limited resources at the target port. An ammonia fuel transportation and filling ship was invented to solve the problem of fast and safe transportation and filling of ammonia fuel for ships.

Contents of the invention

In view of the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an ammonia fuel transportation and refueling ship, which is used to solve the problem of ammonia leakage in the prior art that is difficult to detect and cause personnel poisoning, and the safe transportation and refueling of ammonia fuel The problem.

In order to achieve the above and other related purposes, the present invention provides an ammonia fuel transportation and filling ship, including a hull, several independent tanks fixed on the hull, a liquid cargo manifold connected to each independent tank, and a filling tank. headers, and leakage handling devices installed next to the cargo headers and filling headers on each independent tank, said leakage handling devices including gas detection stations installed next to the cargo headers and filling headers, And a washing tower installed on the hull, the washing range of the washing tower covers the liquid cargo header and the filling header.

Preferably, the leakage treatment device further includes a receiving pan arranged under the filling header, and a neutralization tank arranged under the liquid cargo manifold and the filling header, and the neutralizing tank is installed under the receiving tray. There is an opening on the side of the ship hull, and the neutral compartment; further, the receiving plate is provided with a double-layer structure, the upper structure is a mesh stainless steel layer, the lower layer is a solid stainless steel layer, and an isolation water layer is provided between the upper and lower layers , the bottom of the receiving tray is connected with the neutralization cabin through a pipeline.

Preferably, the hull is also provided with a fuel self-supply cabin and a fuel power cabin for driving the hull. The fuel power cabin is provided with an ammonia fuel main engine, and the fuel passes through between the self-supply cabin and several independent cabins. The first gas pipeline is connected, and each first gas pipeline is equipped with a stress valve. The fuel supply tank is connected to any independent tank through the first liquid pipeline, and the fuel is self-supplied The tank is connected to the main engine of ammonia fuel through a second liquid pipeline and a second gas pipeline to form a loop connection, and emergency isolation valves are installed on the first liquid pipeline and the second liquid pipeline.

Preferably, both the second liquid pipeline and the second gas pipeline are double-walled tubes, and the double-walled tubes include an outer tube, an inner tube pierced in the outer tube, and an inner tube formed between the outer tube and the inner tube. The inner tube of the second liquid pipeline is used to inject liquid ammonia, the inner tube of the second gas pipeline is used to output ammonia gas, the tube gap of the second liquid pipeline and the first The tube gaps of the two gas-direction pipelines are used for the flow of compressed air, the flow direction of the compressed air in the second liquid-direction pipeline is opposite to the injection direction of liquid ammonia, and the flow direction of the compressed air in the second gas-direction pipeline is the same as Ammonia output in the opposite direction.

Preferably, the fuel self-supply cabin includes an inner shell and a bottom structure installed at the bottom of the fuel self-supply cabin, and an insulating layer is laid on the outer surface of the inner shell. Further, another structure of the self-fuel supply tank includes an inner shell, an outer shell wrapping the inner shell, and a bottom surface structure installed at the bottom of the self-fuel supply tank, and an insulating layer is laid on the inner surface of the outer shell. The bottom surface structure is a double-bottom structure, which can effectively resist the vibration generated when the ammonia fuel main engine installed in the fuel power cabin is running.

Preferably, a compressor room and a ventilation tower are also provided on the hull, the compressor room is connected to a first gas pipeline, a pressure sensing device is arranged on the first gas pipeline, and the ventilation tower The tower is connected with the independent cabin.

Preferably, a fence is fixed on the hull, and fenders are placed on the fence, and the fenders include a central floating ball, tire pads arranged on the outer wall of the central floating ball, and center pads arranged at both ends of the central floating ball. The lock buckle and the chain connecting the center lock buckle and the center of the tire pad; the two ends of the fender are spherical and the middle is cylindrical. A certain pressure needs to be maintained inside the center floating ball; tire pads are used to ensure proper elastic deformation.

Preferably, a mooring compartment is provided at the bow of the hull, a battery compartment is provided at the stern of the hull, and side thrusters are installed on the side walls of the bow and stern of the hull. The bow of the hull is provided with a personnel living compartment, and the leakage treatment device also includes a plurality of emergency shower rooms, and the emergency shower rooms are arranged on the top of each independent cabin.

Preferably, an intermediate longitudinal bulkhead is arranged inside the independent cabin, and the intermediate longitudinal bulkhead is arranged on the centerline from the bow to the stern to separate the independent cabin.

As mentioned above, the ammonia fuel transportation and bunkering ship of the present invention has the following beneficial effects:

The invention is provided with a plurality of independent cabins for storing and transporting ammonia fuel, and at the same time, liquid cargo headers and filling headers arranged on the independent cabins are convenient for storage of ammonia fuel and filling of gas ships; leakage treatment is provided The device can quickly process the leaked ammonia fuel through the leakage treatment device after the ammonia fuel leaks, reducing the risk of personnel poisoning caused by the ammonia fuel leak.

Description of drawings

Fig. 1 is the independent cabin type A and type B structural representations of ammonia fuel transportation and fueling ship of the present invention;

Fig. 2 is the right side view of the independent cabin A type and B type of the ammonia fuel transportation and filling ship of the present invention;

Fig. 3 is the structure diagram of the fuel self-supply cabin A1 type and B1 type of the ammonia fuel transportation and filling ship of the present invention;

Fig. 4 is the top view of the bottom surface structure of the ammonia fuel transportation and filling ship of the present invention;

Fig. 5 is the structural diagram of the fuel self-supply cabin C1 type of the ammonia fuel transportation and filling ship of the present invention;

Fig. 6 is the top view of the fender of the ammonia fuel transportation and bunkering ship of the present invention;

Fig. 7 is the left side view of the fender of the ammonia fuel transportation and bunkering ship of the present invention;

Fig. 8 is the flow chart of the fuel self-supply cabin and the ammonia fuel main engine of the ammonia fuel transportation and filling ship of the present invention;

Fig. 9 is a schematic diagram of the independent cabin C type structure of the ammonia fuel transportation and filling ship of the present invention;

Fig. 10 is a right side view of the type C independent tank of the ammonia fuel transportation and bunkering ship of the present invention.

Component designation description

1 hull;

101 The first independent cabin;

102 Second independent cabin;

103 The third independent cabin;

104 center longitudinal bulkheads;

2 cargo headers;

3 filling header;

4 gas detection stations;

5 scrubber;

6 receiving tray;

7 intermediate class;

8 self-supply fuel tank;

801 inner shell;

802 shell;

803 insulation layer;

804 Bottom structure;

9 fuel power cabin;

10 Ammonia fuel host;

11 The first gas line;

1101 Stress valve;

12 The first liquid direction pipeline;

1201 Emergency isolation valve;

13 The second liquid direction pipeline;

1301 Second gas pipeline;

1302 compressed air pipeline;

14 Ventilation tower;

15 fenders;

1501 fence;

1502 Center float;

1503 Tire pads;

1504 Center lock;

1505 Chains;

16 Mooring compartments;

17 Battery compartment;

18 side thruster compartment;

19 Personnel Habitat;

20 Emergency shower room;

21 Compressor room.

Detailed ways

The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

See Figures 1 through 10. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable scope of the invention and the change or adjustment of its relative relationship shall also be regarded as the practicable scope of the present invention without any substantial change in the technical content.

As shown in Figure 1, Figure 2, Figure 9, and Figure 10, the present invention provides an ammonia fuel transportation and filling ship, including a hull 1, several independent cabins fixed on the hull 1, connected to each independent cabin The liquid cargo header 2 and filling header 3, and the leakage treatment device installed next to the liquid cargo header 2 and filling header 3 on each independent tank, the leakage treatment device includes the liquid cargo header 2 And the gas detection station 4 next to the filling header 3, and the scrubber 5 installed on the hull 1, the washing range of the scrubber 5 covers the liquid cargo header 2 and the filling header 3. In this embodiment, there are three independent cabins, the first independent cabin 101, the second independent cabin 102, and the third independent cabin 103 along the direction from the bow to the stern. Each independent cabin is located on the structure of the hull 1 through a support, wherein the diamond-shaped independent cabin includes Type A and Type B, as shown in Figures 1 and 2, the design pressure of the diamond-shaped independent cabin is less than 0.7bar; the spherical column-shaped independent cabin Including Type C, as shown in Figure 9 and Figure 10, the design pressure of the ball column type independent cabin is greater than 0.7bar, which can withstand greater pressure in the cabin. The above-mentioned ammonia fuel transportation and filling ship has two functions of transportation and filling through the liquid cargo header 2 and the filling header 3 on each independent tank.

Preferably, as shown in Figure 1 and Figure 9, the liquid cargo header 2 on the second independent tank 102 in the middle of the hull 1 is set as a VLLVVL liquid cargo header or an LVVLLV liquid cargo header, and the liquid cargo header 2 simultaneously satisfies The two liquid cargo filling methods of VLLV or LVVL are mainly used for the ammonia fuel filling of the ship’s hull 1 at the source of the port, and can also reversely realize ship-to-ship ammonia fuel filling. The filling header 3 is equipped with two liquid-phase pipes and one gas-phase pipe; wherein, L indicates the liquid-directed header, and V indicates the gas-directed header.

Further, in the bow and stern areas of the hull 1, special ship-to-ship ammonia fuel filling pipelines are also provided to meet the filling requirements of ships of different main sizes:

When the one-to-one bunkering operation is adopted, when the storage tank of the receiving ship is arranged at the bow, the first independent cabin 101 is used for the bunkering operation when the bunkering ship and the receiving ship are berthed bow-to-bow; when the storage tank of the receiving ship is arranged in the middle When the bunkering ship and the receiving ship are berthing side by side, the second independent cabin 102 is used for filling operation; when the storage tank of the receiving ship is arranged at the stern, the first independent cabin 101 is used for the bunkering ship and the receiving ship to berth bow-to-stern Perform filling operations.

When the one-to-two bunkering operation is adopted, the bunkering ship and the first bunkering ship berthed head-to-head using the first independent cabin 101 for bunkering operations, and the bunkering ship and the second bunkering ship are berthing stern-to-stern using the third independent cabin 103 carries out filling operation, can realize the simultaneous filling demand to two ships.

The three independent compartments in the present invention are used to store and transport ammonia fuel, and the liquid cargo manifold 2 and filling manifold 3 on each independent compartment facilitate the storage of external ammonia fuel and filling to ships; the gas detection station provided 4 is used to detect the ammonia content in the air, and the alarm value of the ammonia content is set at the ammonia volume concentration of 20-50ppm (parts per million concentration). When the ammonia content exceeds the standard, the washing tower 5 releases water for spraying, and relies on the principle that ammonia gas is easily soluble in water to reduce the air content of ammonia gas, thereby preventing personnel from inhaling ammonia gas and causing poisoning.

Further, as shown in Fig. 1, Fig. 2, Fig. 9, and Fig. 10, the leakage treatment device also includes a receiving plate 6 arranged under the filling manifold 3, and a receiving plate 6 arranged on the liquid cargo manifold 2 and the filling manifold 3 In the combined cabin 7 below, the neutralized cabin 7 is installed on the hull 1 below the receiving plate 6, and the neutralized cabin 7 has an opening on the side, and the ammonia in the neutralized cabin 7 can be discharged outside the side. Preferably, the receiving plate 6 is arranged under the filling header 3, and if the liquid ammonia is transferred or leaks, it can collect and accept the leaked liquid ammonia; the receiving plate 6 is provided with a double-layer structure, the upper structure is a mesh stainless steel layer, and the lower layer It is a solid stainless steel layer, and an isolation water layer is arranged between the upper and lower layers, and the bottom of the receiving plate 6 is connected with the neutralizing cabin 7 through a pipeline. Preferably, acidic substances are sprinkled in the neutralization cabin 7, and when the washing tower 5 releases water for spraying, the ammonia gas dissolved in water naturally overflows into the neutralization cabin 7 or the receiving plate 6 through the convex deck on the hull 1 The collected leaked liquid ammonia flows into the neutralization cabin 7 through the piping system, and reacts with the acidic substances in the neutralization cabin 7 to form ammonium salts, so as to avoid ammonia poisoning of personnel.

Further, as shown in Fig. 1, Fig. 3, Fig. 4 and Fig. 8, a fuel self-supply cabin 8 and a fuel power cabin 9 for driving the hull 1 are also arranged on the hull 1, and an ammonia fuel main engine is arranged in the fuel power cabin 9 10. The fuel self-supply cabin 8 is connected to several independent cabins through the first gas pipeline 11, and each first gas pipeline 11 is equipped with a stress valve 1101. The fuel self-supply cabin 8 and any The independent tanks are connected through the first liquid pipeline 12 , and the bottom of the fuel supply tank 8 is provided with a bottom structure 804 . Preferably, the bottom structure 804 is a double-bottom structure, which can effectively resist the vibration generated when the ammonia fuel main engine 10 installed in the fuel power cabin 9 is running. The fuel self-supply cabin 8 is connected to the ammonia fuel main engine 10 through the second liquid pipeline 13 and the second gas pipeline 1301 to form a loop connection. Both the first liquid pipeline 12 and the second liquid pipeline 13 are equipped with emergency Isolation valve 1201. Preferably, the fuel self-supply cabin 8 is arranged in the rear area of the hull 1, and is connected to the third independent cabin 103 through the first liquid direction pipeline 12, and the fuel power cabin 9 is arranged below the fuel self-supply cabin 8, and the fuel is self-supplied The material of cabin 8 is low-temperature steel, stainless steel, aluminum alloy, high manganese steel, etc., preferably low-temperature steel; ammonia is corrosive, and it corrodes carbon-manganese steel and nickel steel more strongly. More preferably, a small area directly below the air chamber of the third independent compartment 103 can be designated as the fuel self-supply compartment 8, and there is no need to separately arrange the fuel self-supply compartment 8, which saves costs and materials. Further, the emergency isolation valve 1201 is arranged on the first liquid pipeline 12 and the second liquid pipeline 13, and when a liquid ammonia leakage accident occurs, the emergency isolation valve 1201 is automatically closed to avoid further leakage.

Further, as shown in FIG. 8, both the second liquid pipeline 13 and the second gas pipeline 1301 are double-walled tubes, and the double-walled tubes include an outer tube, an inner tube pierced in the outer tube, and an inner tube formed on the outer tube. and the pipe gap between the inner pipe, the inner pipe of the second liquid to the pipeline 13 is used to inject liquid ammonia, the inner pipe of the second gas to the pipeline 1301 is used to output ammonia gas, and the compressed air pipeline 1302 injects compressed air into the first In the tube gap of the second liquid pipeline 13 and the tube gap of the second gas pipeline 1301, the flow direction of the compressed air in the second liquid pipeline 13 is opposite to the injection direction of liquid ammonia, and the second gas is compressed in the pipeline 1301 The flow direction of the air is opposite to the output direction of ammonia gas; when there is a gap in the inner pipe of the first liquid pipeline 12 and the second gas pipeline 1301, and when the ammonia fuel leaks due to rupture, the compressed air flowing in the pipe gap can dissipate the ammonia fuel. Dilute to avoid ammonia fuel concentrations in the explosive flash point range.

Further, the fuel self-supply cabin 8 may be of type A1, type B1, or type C1. Wherein, as shown in FIG. 5 , the C1 type fuel self-supply cabin 8 includes an inner shell 801 and a bottom surface structure 804 installed at the bottom of the fuel self-supply cabin 8 , and an insulating layer 803 is laid on the surface of the inner shell 801 . When the capacity of the fuel self-supply cabin 8 is less than 5000 cubic meters, only the inner shell 801 can bear the pressure of liquid ammonia, and the surface of the inner shell 801 is laid with a PU insulating layer 803; A layer of thin iron sheet is attached to the outside of the layer 803, which is better for cooling liquid ammonia. Preferably, as shown in Figure 3, the A1 type or B1 type fuel self-supply cabin 8 includes an inner shell 801, an outer shell 802 wrapping the inner shell 801, and a bottom surface structure 804 installed at the bottom of the fuel self-supply cabin 8, inside the outer shell 802 An insulating layer 803 is laid on the surface. When the capacity of the fuel self-supply cabin 8 is greater than 5,000 cubic meters, an outer shell 802 needs to be provided so that when the inner shell 801 fails, the outer shell 802 can rely on the outer shell 802 to carry the leaked liquid, and the inner surface of the outer shell 802 is covered with a PU insulating layer. 803, used to keep liquid ammonia cold; the fuel self-supply cabin 8 has a capacity of 5,000 cubic meters, and can sail about 20,000 nautical miles once it is fully filled. Preferably, the outer shell of the A1-type or B1-type fuel self-supply cabin 8 is also provided with a passage for personnel to enter, so that personnel can check the status of the inner shell 801 and find out the leakage of ammonia fuel in time.

Further, as shown in Fig. 1 and Fig. 9, a compressor chamber 21 and a ventilation tower 14 are also provided on the hull 1, the compressor chamber 21 is connected with the first gas pipeline 11, and on the first gas pipeline 11 A pressure sensing device is provided, and the ventilation tower 14 is connected with the independent cabin. Preferably, the fuel self-supply cabin 8 is connected to several independent cabins through first gas pipelines 11, and a plurality of first gas pipelines 11 share a section of pipeline, and the compressor room 21 is connected to a plurality of first gas pipelines. Connected to the common pipeline of pipeline 11, when the pressure in each independent compartment exceeds the design value of the liquid tank, the stress valve 1101 is opened, and the ammonia gas flows into the pressure sensing device in the first gas pipeline 11, and at this time the compressed The compressor in the machine room 21 works and starts in the liquefaction system, thereby reducing the pressure in each independent compartment; when the compressor breaks down, that is, when the liquefaction system cannot be started, ammonia will be released from the ventilation tower 14 at this time, reducing The pressure of each independent compartment. In this embodiment, the number of ventilation towers 14 is one; in other embodiments, the number of ventilation towers 14 can also correspond to the number of independent cabins, that is, each independent cabin is equipped with a ventilation tower 14 alone.

Further, as shown in Fig. 6 and Fig. 7, a fence 1501 is fixed on the hull 1, and a fender 15 is placed on the fence 1501. The tire pad 1503 , the central buckle 1504 arranged at both ends of the central floating ball 1502 , and the chain 1505 connecting the central buckle 1504 and the center of the tire pad 1503 . Preferably, the two ends of the fender 15 are spherical, and the middle is cylindrical. The inside of the center float 1502 needs to maintain a certain pressure; the tire pad 1503 ensures proper elastic deformation. Further, in this embodiment, the number of fenders 15 is set to four, and during normal navigation, the fenders 15 are placed on the fence 1501; when filling the ship, the fenders 15 are passed through the crane The mechanism is placed on the sea surface between the bunkering ship and the bunkering ship to slow down the collision force between the bunkering ship and the bunkering ship, and meet the safety requirements of ship-to-ship ammonia fuel filling.

Further, as shown in Figures 1 and 9, a mooring compartment 16 is provided at the bow of the hull 1, a battery compartment 17 is provided at the stern of the hull 1, and side thrusters are installed on the side walls of the bow and stern of the hull 1. 18. The mooring compartment 16 is used to meet the mooring requirements of the ship; when the ship does not turn on the main engine in the port, the battery compartment 17 provides energy to maintain the power demand of the port; the side thruster compartment 18 makes the hull 1 have good maneuverability.

Further, as shown in Fig. 1 and Fig. 9, the bow of the hull 1 is provided with a living quarters 19, and the leakage treatment device also includes a plurality of emergency shower rooms 20, and the emergency shower rooms 20 are arranged on the top of each independent cabin. Preferably, the personnel living compartment 19 is located at the forefront of the ship and has the following functions: the first function is to completely separate the personnel living area and the ammonia fuel work area, which can greatly reduce the risk of ammonia poisoning; (The ship is in any operating state, and the blind area of the ship is less than 1 times the length of the ship); the third function is to make full use of the vast rear deck space. Further, the profile of the personnel living compartment 19 presents an upward angle of 45 degrees, which can reduce wind resistance. Preferably, the emergency bathing room 20 is equipped with devices such as an eyewash pool and a portable ammonia leakage monitor, which can be automatically opened when the gas detection station 4 monitors that the ammonia volume concentration per cubic meter in the air reaches 400ppm, so that personnel can quickly clean the contaminated ammonia. gas.

Further, the hull 1 has a convex deck, which can increase the capacity of the first independent cabin 101 , the second independent cabin 102 , and the third independent cabin 103 under the condition that the main dimension frame of the hull 1 is limited. By setting a convex deck at a position higher than the intermediate tank 7, when the main size of the ship is fixed, it breaks through the limitation of the capacity of the liquid tank in the existing design, effectively expands the capacity of the liquid tank, and at the same time ensures that the liquefied gas ship The center of gravity does not change much. Further, by setting the hull 1 with a convex deck, the area of the deck surface is effectively extended, and more equipment can be arranged, such as fenders 15 and the like.

Further, a middle longitudinal bulkhead 104 is arranged inside the independent cabin, and the middle longitudinal bulkhead 104 is arranged on the centerline from the bow to the stern to separate the independent cabin. As shown in Fig. 2 and Fig. 10, the first independent compartment 101 is divided into the left compartment of the first independent compartment 101 and the right compartment of the first independent compartment 101 by the middle longitudinal bulkhead 104; the second independent compartment 102 is separated by the middle longitudinal bulkhead 104 Become the second independent compartment 102 left compartment, the second independent compartment 102 right compartment; the third independent compartment 103 is divided into the third independent compartment 103 left compartment and the third independent compartment 103 right compartment by the middle longitudinal bulkhead 104. The set middle longitudinal bulkhead 104 can effectively reduce the influence of the sloshing of the independent tank on the structure of the hull 1 . When the ship encounters a collision, only a single cabin (left cabin or right cabin) will be damaged, which can improve the stability of the ship.

The ammonia fuel transportation and filling ship disclosed in the present invention fills ammonia into the first independent tank 101, the second independent tank 102, the third independent tank 103, and the self-fuel supply tank 8 through the liquid cargo header 2 before sailing Fuel, the fuel is transported from the supply tank 8 to the ammonia fuel main engine 10 through the fuel supply pipeline system, the first liquid pipeline 12 and the second gas pipeline 1301, and the ammonia fuel burns to propel the hull 1 to sail. When the ship needs to be filled, the fender 15 is first put on the sea surface to slow down the collision force between the ship and the ship, and then the ammonia fuel is added to the injected ship through the filling header 3 on the independent cabin. During the voyage, the gas detection station 4 monitors the ammonia concentration in the air, and when it detects that the ammonia concentration exceeds the standard, emergency treatment is carried out for the leaked ammonia gas through equipment such as the scrubber 5, the neutralization cabin 7, and the emergency shower room 20 ; When the pressure in the independent cabin was too large, equipment such as compressor room 21 and ventilation tower 14 could release the pressure urgently in the independent cabin to avoid the occurrence of accidents.

To sum up, the present invention effectively overcomes various shortcomings in the prior art and has high industrial application value.

The above-mentioned embodiments only illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention should still be covered by the claims of the present invention.

Claims

An ammonia fuel transportation and bunkering ship is characterized in that it includes a hull (1), several independent tanks fixed on the hull (1), a liquid cargo header (2) connected to each independent tank, and a fuel tank The injection header (3), and the leakage treatment device installed next to the liquid cargo header (2) and filling header (3) on each independent tank, the leakage treatment device includes installation on the liquid cargo header ( 2) and the gas detection station (4) next to the filling header (3), and the scrubber (5) installed on the hull (1), the washing range of the scrubber (5) covers the liquid cargo header ( 2) and fill header (3).
The ammonia fuel transportation and bunkering ship according to claim 1, characterized in that: the leakage treatment device also includes a receiving plate (6) arranged under the filling header (3), and a receiving plate (6) arranged under the liquid cargo header (2) and the neutralizing cabin (7) below the filling header (3), the neutralizing cabin (7) is installed on the hull (1) below the receiving plate (6), and the neutralizing cabin (7) There is an opening on the side; the bottom of the receiving tray (6) is connected with the intermediate cabin (7) through a pipeline.
The ammonia fuel transportation and filling ship according to claim 1, characterized in that: the hull (1) is also provided with a fuel self-supply cabin (8) and a fuel power cabin (9) for driving the hull (1) , the fuel power cabin (9) is provided with an ammonia fuel host (10), the fuel supply cabin (8) is connected to several independent cabins through a first gas pipeline (11), and each Stress valves (1101) are installed on each of the first gas pipelines (11), and the fuel is connected between the self-supply cabin (8) and any independent cabin through the first liquid pipeline (12). The fuel self-supply cabin (8) is connected to the ammonia fuel main engine (10) through a second liquid pipeline (13) and a second gas pipeline (1301) to form a loop connection, and the first liquid pipeline (12) and An emergency isolation valve (1201) is installed on the second liquid direction pipeline (13).
The ammonia fuel transportation and filling ship according to claim 3, characterized in that: both the second liquid pipeline (13) and the second gas pipeline (1301) are double-walled pipes, and the double-walled The pipe includes an outer pipe, an inner pipe pierced in the outer pipe, and a pipe gap formed between the outer pipe and the inner pipe, the inner pipe of the second liquid to the pipeline (13) is used for injecting liquid ammonia, the second The inner pipe of the gas pipeline (1301) is used to output ammonia gas, and the tube gap of the second liquid pipeline (13) and the tube gap of the second gas pipeline (1301) are used for the flow of compressed air, The flow direction of compressed air in the second liquid direction pipeline (13) is opposite to the direction of liquid ammonia injection, and the flow direction of compressed air in the second gas direction pipeline (1301) is opposite to the direction of ammonia gas output.
The ammonia fuel transportation and filling ship according to claim 3, characterized in that: the fuel self-supply cabin (8) includes an inner shell (801), and a bottom surface structure ( 804), the outer surface of the inner shell (801) is coated with an insulating layer (803).
The ammonia fuel transportation and filling ship according to claim 3, characterized in that: the fuel self-supply cabin (8) comprises an inner shell (801), an outer shell (802) wrapping the inner shell (801), and a The fuel is supplied from the bottom structure (804) at the bottom of the tank (8), and an insulating layer (803) is laid on the inner surface of the casing (802).
Ammonia fuel transportation and filling ship according to claim 3, characterized in that: said hull (1) is also provided with a compressor room (21) and a ventilation tower (14), said compressor room (21 ) is connected with the first gas pipeline (11), the first gas pipeline (11) is provided with a pressure sensing device, and the ventilation tower (14) is connected with the independent cabin.
The ammonia fuel transportation and bunkering ship according to claim 1, characterized in that: a fence (1501) is fixed on the hull (1), and fenders (15) are placed on the fence (1501), The fender (15) includes a central floating ball (1502), a tire pad (1503) arranged on the outer wall of the central floating ball (1502), a central lock (1504) arranged at both ends of the central floating ball (1502), and The chain (1505) connecting the center lock (1504) and the center of the tire pad (1503); the two ends of the fender (15) are spherical and the middle is cylindrical.
The ammonia fuel transportation and filling ship according to claim 1, characterized in that: a mooring compartment (16) is provided at the bow of the hull (1), and a battery compartment is provided at the stern of the hull (1) (17), the side walls of the bow and stern of the hull (1) are equipped with side thrusters (18); the bow of the hull (1) is provided with a personnel cabin (19), and the leakage treatment device is also provided with It includes a plurality of emergency shower rooms (20), and the emergency shower rooms (20) are arranged on the top of each independent cabin.
The ammonia fuel transportation and bunkering ship according to claim 1, characterized in that: an intermediate longitudinal bulkhead (104) is arranged inside the independent compartment, and the intermediate longitudinal bulkhead (104) is arranged at the bow to the stern. Separate compartments are separated on the center line.