阅读说明：本技术 一种氨燃料运输与加注船 (Ammonia fuel transportation and filling ship ) 是由 柳一点 陈兵 张道志 郑双燕 蒋雄健 柳梦源 李晓姣 于 2021-08-02 设计创作，主要内容包括：本发明提供一种氨燃料运输与加注船,包括船体、固定在船体上的若干个独立舱、连接在每个独立舱上的液货集管和加注集管、以及安装在每个独立舱上的液货集管和加注集管旁边的泄漏处理装置,所述泄漏处理装置包括安装在液货集管和加注集管旁边的气体探测站、以及安装在船体上的洗涤塔,所述洗涤塔的洗涤范围覆盖液货集管和加注集管。本发明设置有多个独立舱,用来存储运输氨燃料,同时独立舱上设置的液货集管和加注集管,便于对氨燃料的存储以及对气体船舶的加注；设置有泄漏处理装置,能够在氨燃料出现泄露后,通过泄漏处理装置对泄露的氨燃料进行快速处理,降低氨燃料泄露导致人员中毒的风险。(The invention provides an ammonia fuel transportation and filling ship, which comprises a ship body, a plurality of independent cabins fixed on the ship body, a liquid cargo collecting pipe and a filling collecting pipe connected to each independent cabin, and a leakage processing device arranged beside the liquid cargo collecting pipe and the filling collecting pipe on each independent cabin, wherein the leakage processing device comprises a gas detection station arranged beside the liquid cargo collecting pipe and the filling collecting pipe, and a washing tower arranged on the ship body, and the washing range of the washing tower covers the liquid cargo collecting pipe and the filling collecting pipe. The invention is provided with a plurality of independent cabins for storing and transporting ammonia fuel, and the liquid cargo collecting pipe and the filling collecting pipe which are arranged on the independent cabins are convenient for storing the ammonia fuel and filling the gas ship; be provided with and leak processing apparatus, can appear revealing the back at ammonia fuel, carry out rapid treatment to the ammonia fuel who reveals through leaking processing apparatus, reduce ammonia fuel and reveal the risk that leads to personnel to be poisoned.)

1. An ammonia fuel transportation and filling ship is characterized in that: the ship comprises a ship body (1), a plurality of independent cabins fixed on the ship body (1), a liquid cargo collecting pipe (2) and a filling collecting pipe (3) connected to each independent cabin, and a leakage processing device arranged beside the liquid cargo collecting pipe (2) and the filling collecting pipe (3) on each independent cabin, wherein the leakage processing device comprises a gas detection station (4) arranged beside the liquid cargo collecting pipe (2) and the filling collecting pipe (3) and a washing tower (5) arranged on the ship body (1), and the washing range of the washing tower (5) covers the liquid cargo collecting pipe (2) and the filling collecting pipe (3).

2. The ammonia-fueled transport and filling vessel according to claim 1, wherein: the leakage treatment device also comprises a receiving disc (6) arranged below the filling header (3) and a middle closing cabin (7) arranged below the liquid cargo header (2) and the filling header (3), wherein the middle closing cabin (7) is arranged on the ship body (1) below the receiving disc (6), and the middle closing cabin (7) is provided with an opening on the side; the bottom of the bearing disc (6) is connected with the middle closing cabin (7) through a pipeline.

3. The ammonia-fueled transport and filling vessel according to claim 1, wherein: still be provided with fuel on hull (1) from supplying cabin (8) and driving hull (1) fuel power cabin (9), be provided with ammonia fuel host computer (10) in fuel power cabin (9), fuel is respectively connected to pipeline (11) and every first gas all installs stress valve (1101) on pipeline (11) from supplying between cabin (8) and a plurality of independent cabin, fuel is connected through first liquid to pipeline (12) between cabin (8) and arbitrary independent cabin, fuel is supplied cabin (8) and ammonia fuel host computer (10) from second liquid to pipeline (13) and second gas to pipeline (1301) constitution loop connection, first liquid all installs emergent isolation valve (1201) on pipeline (12) and second liquid to pipeline (13).

4. The ammonia-fueled transport and filling vessel according to claim 3, wherein: the second liquid is all double-walled pipe to pipeline (1301) with second gas, double-walled pipe includes the outer tube, wears to establish the inner tube in the outer tube and forms the tube gap between outer tube and inner tube, the inner tube of second liquid is used for injecting liquid ammonia to pipeline (13), the second gas is used for exporting the ammonia to the inner tube of pipeline (1301), the second liquid is all used for compressed air's flow to the tube gap of pipeline (13) and second gas to the tube gap of pipeline (1301), the flow direction of compressed air is opposite with liquid ammonia injection direction in second liquid to pipeline (13), the flow direction of compressed air is opposite with ammonia output direction in second gas to pipeline (1301).

5. The ammonia-fueled transport and filling vessel according to claim 3, wherein: the fuel self-supply cabin (8) comprises an inner shell (801) and a bottom surface structure (804) arranged at the bottom of the fuel self-supply cabin (8), wherein an insulating layer (803) is laid on the outer surface of the inner shell (801).

6. The ammonia-fueled transport and filling vessel according to claim 3, wherein: the fuel self-supply cabin (8) comprises 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), wherein an insulating layer (803) is laid on the inner surface of the outer shell (802).

7. The ammonia-fueled transport and filling vessel according to claim 3, wherein: still be provided with compressor room (21) and ventilative tower (14) on hull (1), compressor room (21) are connected with first pneumatic pipeline (11), be provided with pressure sensing device on first pneumatic pipeline (11), ventilative tower (14) are connected with independent cabin.

8. The ammonia-fueled transport and filling vessel according to claim 1, wherein: a boom (1501) is fixed on the hull (1), a fender (15) is placed on the boom (1501), and the fender (15) comprises a central floating ball (1502), tire pads (1503) arranged on the outer wall of the central floating ball (1502), central lock catches (1504) arranged at two ends of the central floating ball (1502), and a lock chain (1505) connecting the central lock catches (1504) with the centers of the tire pads (1503); the two end parts of the fender (15) are spherical, and the middle part of the fender is cylindrical.

9. The ammonia-fueled transport and filling vessel according to claim 1, wherein: a mooring cabin (16) is arranged at the bow of the ship body (1), a storage battery cabin (17) is arranged at the stern of the ship body (1), and side push cabins (18) are arranged on the side walls of the bow and the stern of the ship body (1); the bow of the ship body (1) is provided with a personnel living cabin (19), the leakage treatment device further comprises a plurality of emergency bath rooms (20), and the emergency bath rooms (20) are arranged at the tops of the independent cabins.

10. The ammonia-fueled transport and filling vessel according to claim 1, wherein: the interior of the independent cabin is provided with a longitudinal bulkhead (104), and the longitudinal bulkhead (104) is arranged on the midline from the bow to the stern and separates the independent cabin.

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

With the progress of science and technology, the industrialization develops faster and faster, but the excessive emission of carbon dioxide is brought, and the greenhouse gas effect is more obvious. In order to achieve the macro goal that the total amount of greenhouse gas emission in 2050 must be reduced by at least 50% on the basis of 2008, the adoption of low-carbon or zero-carbon fuel is very necessary. Ammonia fuel, hydrogen fuel, nuclear energy, etc. are considered as one of the most representative zero-carbon energy sources in the future shipping industry, and it is expected that ammonia fuel is more easily commercialized and applied on a large scale in the last 10 years because of its low transportation cost and high safety.

Compared with hydrogen, ammonia has the following advantages:

1. the ammonia fuel has the characteristic of easy transportation, and can be liquefied and stored at the transportation temperature of less than-34.5 ℃. Meanwhile, the liquefied gas storage tank can reach a liquefied storage state under a normal temperature environment and under a certain pressure condition (8-10 bar).

2. Ammonia fuel has a greater energy density. The ammonia fuel requires a tank capacity of substantially three fifths of the hydrogen fuel based on the equivalent endurance requirements of the vessel. The arrangement of the ship can be facilitated.

3. The ammonia fuel has storage characteristics that enable it to be stored well in multiple types of independent liquid tanks. At the same time, anhydrous ammonia has a very small flash point range and is therefore generally considered to be a very small risk of explosion.

However, ammonia gas itself is colorless and transparent, and has the characteristics of toxicity and very active molecular structure, so that leakage is not easy to find and the toxicity can cause irreparable loss to personnel in the process of transporting and storing ammonia fuel, so that the international bulk liquefied gas carrier convention has very strict limitation requirements on ammonia transportation, and the limitation must consider minimizing the poisoning risk of personnel on ammonia leakage, and the defect also causes that the current ammonia fuel is not universal enough.

Meanwhile, the problem that the target port resource conditions are limited currently exists in injected ships (ultra-large container ships, bulk cargo ships, oil tankers and the like), and in order to achieve the purpose of seeking faster and shorter port residence time or even achieving fast transfer on the sea, the ammonia fuel transportation and injection ship is invented to solve the problem of fast and safe transportation and injection of ammonia fuel of ships.

Disclosure of Invention

In view of the above-mentioned shortcomings of the prior art, the present invention provides an ammonia fuel transportation and filling ship, which is used for solving the problems of people poisoning and safe transportation and filling of ammonia fuel caused by ammonia gas leakage in the prior art.

To achieve the above and other related objects, the present invention provides an ammonia-fueled transport and filling vessel including a hull, a plurality of individual tanks secured to the hull, a liquid cargo header and a filling header connected to each of the individual tanks, and a leak handling apparatus mounted on each of the individual tanks beside the liquid cargo header and the filling header, the leak handling apparatus including a gas sensing station mounted beside the liquid cargo header and the filling header, and a scrubber tower mounted on the hull, the scrubber tower having a scrubbing area covering the liquid cargo header and the filling header.

Preferably, the leak handling apparatus further comprises a tray disposed below the fill header, and a central joint chamber disposed below the liquid cargo header and the fill header, the central joint chamber being mounted on the hull below the tray and having an opening on a side; further, it is equipped with bilayer structure to accept the dish, and superstructure is netted stainless steel layer, and the lower floor is solid stainless steel layer, is equipped with the isolation water layer between the upper and lower two-layer, it is connected with well cabin through the pipeline to accept a set bottom.

Preferably, still be provided with the fuel power cabin of fuel self-supply cabin and drive hull on the hull, be provided with the ammonia fuel host computer in the fuel power cabin, fuel respectively through first gas between self-supply cabin and the independent cabin of a plurality of to the tube coupling, and every first gas all installs the stress valve on the pipeline, fuel is from supplying through first liquid to the tube coupling between cabin and arbitrary independent cabin, fuel constitutes the return circuit connection through second liquid to pipeline and second gas with the ammonia fuel host computer from the self-supply cabin, first liquid all installs emergent isolation valve on pipeline and the second liquid to the pipeline.

Preferably, the second hydraulic pipeline and the second gas are double-wall pipes, each double-wall pipe comprises an outer pipe, an inner pipe arranged in the outer pipe in a penetrating mode and a pipe gap formed between the outer pipe and the inner pipe, the inner pipe of the second hydraulic pipeline is used for injecting liquid ammonia, the inner pipe of the second gas is used for outputting ammonia gas, the pipe gap of the second hydraulic pipeline and the pipe gap of the second gas to the pipeline are both used for flowing of compressed air, the flowing direction of the compressed air in the second hydraulic pipeline is opposite to the liquid ammonia injecting direction, and the flowing direction of the compressed air in the second gas to the pipeline is opposite to the ammonia gas outputting direction.

Preferably, the fuel self-supply cabin comprises an inner shell and a bottom surface structure arranged at the bottom of the fuel self-supply cabin, and an insulating layer is laid on the outer surface of the inner shell. Furthermore, the other structure of the fuel self-supply cabin comprises an inner shell, an outer shell wrapping the inner shell and a bottom surface structure arranged at the bottom of the fuel self-supply cabin, wherein an insulating layer is laid on the inner surface of the outer shell. The bottom surface structure is a double-bottom structure, and can effectively resist the vibration generated when an ammonia fuel main machine arranged in the fuel power cabin runs.

Preferably, the ship body is further provided with a compressor room and a ventilating tower, the compressor room is connected with a first pneumatic pipeline, the first pneumatic pipeline is provided with a pressure sensing device, and the ventilating tower is connected with the independent cabin.

Preferably, a boom is fixed on the ship body, a fender is placed on the boom, and the fender comprises a central floating ball, a tire pad arranged on the outer wall of the central floating ball, central latches arranged at two ends of the central floating ball, and a chain connecting the central latches and the center of the tire pad; the two end parts of the fender are spherical, and the middle part of the fender is cylindrical. A certain pressure needs to be maintained in the central floating ball; the tire pad is used to ensure proper elastic deformation.

Preferably, a mooring cabin is arranged at the bow of the ship body, a storage battery cabin is arranged at the stern of the ship body, and side push cabins are arranged on the side walls of the bow and the stern of the ship body. The bow of hull is provided with personnel and lives the cabin, leak processing apparatus still includes a plurality of emergency shower rooms, emergency shower room sets up the top in each independent cabin.

Preferably, the independent tanks are internally provided with a longitudinal bulkhead which is arranged on a midline from the bow to the stern and separates the independent tanks.

As mentioned above, the ammonia fuel transportation and filling ship has the following beneficial effects:

the invention is provided with a plurality of independent cabins for storing and transporting ammonia fuel, and the liquid cargo collecting pipe and the filling collecting pipe which are arranged on the independent cabins are convenient for storing the ammonia fuel and filling the gas ship; be provided with and leak processing apparatus, can appear revealing the back at ammonia fuel, carry out rapid treatment to the ammonia fuel who reveals through leaking processing apparatus, reduce ammonia fuel and reveal the risk that leads to personnel to be poisoned.

Drawings

FIG. 1 is a schematic structural diagram of an A-type and a B-type independent cabin of an ammonia fuel transportation and filling ship of the invention;

FIG. 2 is a right side view of the separate tanks of the ammonia fuel transport and filling vessel of the present invention, type A and type B;

FIG. 3 is a block diagram of the fuel self-supplying tanks A1 and B1 of the ammonia fuel transport and refueling ship of the present invention;

FIG. 4 is a top plan view of the bottom structure of the ammonia fuel transport and filling vessel of the present invention;

FIG. 5 is a schematic view of the fuel tank type C1 of the ammonia fuel transport and refueling ship of the present invention;

FIG. 6 is a top view of the fender of the ammonia fuel transport and filling vessel of the present invention;

FIG. 7 is a left side view of the fender of the ammonia fuel transport and filling vessel of the present invention;

FIG. 8 is a flow chart of the fuel self-supplying tank and the ammonia fuel main unit of the ammonia fuel transporting and filling ship of the present invention;

FIG. 9 is a schematic view of a C-shaped structure of an independent cabin of the ammonia fuel transporting and filling ship of the present invention;

fig. 10 is a right side view of the independent cabin C of the ammonia fuel transport and filling vessel of the present invention.

Description of the element reference numerals

1, a ship body;

101 a first independent compartment;

102 a second independent compartment;

103 a third independent compartment;

104 a longitudinal bulkhead;

2 liquid cargo collecting pipe;

3 filling a header;

4, a gas detection station;

5 washing tower;

6, carrying a tray;

7, closing the cabin;

8 fuel self-supply cabin;

801 an inner shell;

802 an outer shell;

803 an insulating layer;

804 a bottom surface structure;

9 a fuel power compartment;

10 ammonia fuel host;

11 a first pneumatic line;

1101 stress valve;

12 a first hydraulic line;

1201 emergency isolation valve;

13 a second hydraulic line;

1301 a second pneumatic pipeline;

1302 a compressed air line;

14, a gas permeable tower;

15 a fender;

1501 a fence;

1502 a central floating ball;

1503 tire pad;

1504 a central latch;

1505 linkage;

16 mooring bays;

17 a battery compartment;

18 side push cabin;

19 people living in the cabin;

20 emergency bathroom;

21 compressor chamber.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

Please refer to fig. 1 to 10. It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

As shown in fig. 1, 2, 9 and 10, the invention provides an ammonia fuel transportation and filling ship, which comprises a ship body 1, a plurality of independent cabins fixed on the ship body 1, a liquid cargo header 2 and a filling header 3 connected to each independent cabin, and a leakage processing device arranged beside the liquid cargo header 2 and the filling header 3 on each independent cabin, wherein the leakage processing device comprises a gas detection station 4 arranged beside the liquid cargo header 2 and the filling header 3, and a washing tower 5 arranged on the ship body 1, and the washing range of the washing tower 5 covers the liquid cargo header 2 and the filling header 3. In the embodiment, the number of the independent cabins is three, and the independent cabins are a first independent cabin 101, a second independent cabin 102 and a third independent cabin 103 in sequence from the bow to the stern, the independent cabins can be divided into diamond-shaped cabins and spherical column cabins, each independent cabin is located on the structure of the ship body 1 through a support, the diamond-shaped independent cabin comprises an A type and a B type, and as shown in fig. 1 and 2, the design pressure of the diamond-shaped independent cabin is less than 0.7 bar; the ball column type independent cabin comprises a C type, and as shown in fig. 9 and 10, the design pressure of the ball column type independent cabin is greater than 0.7bar, so that the ball column type independent cabin can bear larger pressure in the cabin. The 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 cabin.

Preferably, as shown in fig. 1 and fig. 9, the liquid cargo manifold 2 on the second independent tank 102 in the middle of the ship body 1 is set as a VLLVVL liquid cargo manifold or a LVVLLV liquid cargo manifold, and the liquid cargo manifold 2 simultaneously satisfies two liquid cargo filling modes of VLLV or LVVL, and is mainly used for filling ammonia fuel into the ship body 1 at a port source, and can also reversely fill ammonia fuel into the ship. The filling header 3 is provided with two liquid phase pipes and a gas phase pipe; wherein L represents a liquid direction header and V represents a gas direction header.

Further, in the bow and stern areas of the hull 1, special ammonia fuel filling pipelines for the ship are also arranged to meet the filling requirements of ships with different main scales:

when the one-to-one filling operation is adopted, when the storage tank of the filled ship is arranged at the bow part, the filling ship and the filled bow carry out the filling operation on the bow berth by adopting the first independent tank 101; when the storage tank of the injected ship is arranged in the middle, the injection operation is carried out by the second independent tank 102 when the injection ship and the injected ship are anchored side by side; when the storage tank of the injected ship is arranged at the tail part, the filling operation is carried out by the first independent tank 101 by the filling ship and the head-to-tail berth of the injected ship.

When the one-to-two filling operation is adopted, the filling operation is carried out on the first independent cabin 101 by the filling ship and the first filled bow in the head berth, and the filling operation is carried out on the third independent cabin 103 by the filling ship and the second filled stern in the tail berth, so that the requirement of filling two ships simultaneously can be met.

The three independent cabins are used for storing and transporting ammonia fuel, and the liquid cargo manifold 2 and the filling manifold 3 on each independent cabin are convenient for storing external ammonia fuel and filling the ship; the gas detection station 4 is arranged 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 the air content of the ammonia gas is reduced by relying on the principle that the ammonia gas is easily dissolved in water, so that poisoning caused by the fact that personnel inhale the ammonia gas is avoided.

Further, as shown in fig. 1, 2, 9, and 10, the leak treatment device further includes a receiving tray 6 provided below the filling header 3, and an intermediate tank 7 provided below the liquid cargo header 2 and the filling header 3, wherein the intermediate tank 7 is attached to the hull 1 below the receiving tray 6, and the intermediate tank 7 has an opening on the board side, and can discharge the ammonia water in the intermediate tank 7 to the outside of the board side. Preferably, the receiving disc 6 is arranged below the filling header 3, and can collect leaked liquid ammonia if the liquid ammonia is overstocked or leaked; the bearing plate 6 is provided with a double-layer structure, the upper layer structure is a reticular stainless steel layer, the lower layer structure is a solid stainless steel layer, an isolation water layer is arranged between the upper layer and the lower layer, and the bottom of the bearing plate 6 is connected with the middle closing cabin 7 through a pipeline. Preferably, an acidic substance is scattered in the intermediate chamber 7, when the washing tower 5 releases water for spraying, ammonia dissolved in the water naturally overflows into the intermediate chamber 7 through a convex flat deck on the ship body 1 or leaked liquid ammonia collected in the receiving tray 6 flows into the intermediate chamber 7 through a pipe system to react with the acidic substance in the intermediate chamber 7 to generate ammonium salt, so that the ammonia poisoning of personnel is avoided.

Further, as shown in fig. 1, 3, 4, and 8, a fuel self-supply cabin 8 and a fuel power cabin 9 for driving the hull 1 are further disposed on the hull 1, an ammonia fuel host 10 is disposed in the fuel power cabin 9, the fuel self-supply cabin 8 and a plurality of independent cabins are connected through first air supply pipelines 11, each first air supply pipeline 11 is provided with a stress valve 1101, the fuel self-supply cabin 8 and any one of the independent cabins are connected through a first liquid supply pipeline 12, and a bottom structure 804 is disposed at the bottom of the fuel self-supply cabin 8. Preferably, the bottom structure 804 is a double-bottom structure, which can effectively resist the vibration generated by the ammonia fuel main engine 10 arranged in the fuel power compartment 9 during operation. The fuel self-supply cabin 8 and the ammonia fuel main engine 10 form a loop connection through a second liquid pipeline 13 and a second gas pipeline 1301, and emergency isolation valves 1201 are installed on the first liquid pipeline 12 and the second liquid pipeline 13. Preferably, the fuel self-supply cabin 8 is arranged at the tail area of the ship body 1 and is connected with the third independent cabin 103 through the first hydraulic pipeline 12, the fuel power cabin 9 is arranged below the fuel self-supply cabin 8, and the material of the fuel self-supply cabin 8 is low-temperature steel, stainless steel, aluminum alloy, high manganese steel and the like, preferably low-temperature steel; the ammonia has corrosiveness and can corrode carbon manganese steel and nickel steel strongly. More preferably, a small block can be drawn out from the air chamber of the third independent chamber 103 to serve as the fuel self-supply chamber 8, and the fuel self-supply chamber 8 does not need to be arranged separately, so that the cost and the material are saved. Further, emergent isolation valve 1201 sets up on first liquid is to pipeline 12 and second liquid to pipeline 13, and when taking place the liquid ammonia leakage accident, emergency isolation valve 1201 of self-closing avoids further revealing.

Further, as shown in fig. 8, the second hydraulic pipe 13 and the second pneumatic pipe 1301 are double-walled pipes, each double-walled pipe includes an outer pipe, an inner pipe inserted into the outer pipe, and a pipe gap formed between the outer pipe and the inner pipe, the inner pipe of the second hydraulic pipe 13 is used for injecting liquid ammonia, the inner pipe of the second pneumatic pipe 1301 is used for outputting ammonia, the compressed air pipe 1302 injects compressed air into the pipe gap of the second hydraulic pipe 13 and the pipe gap of the second pneumatic pipe 1301, the flow direction of the compressed air in the second hydraulic pipe 13 is opposite to the liquid ammonia injection direction, and the flow direction of the compressed air in the second pneumatic pipe 1301 is opposite to the ammonia output direction; when the ammonia fuel leaks due to the existence of gaps and cracks in the inner pipes of the first liquid-direction pipeline 12 and the second gas-direction pipeline 1301, the ammonia fuel can be diluted by compressed air flowing in the pipe gaps, and the concentration of the ammonia fuel is prevented from reaching the explosion flash point range.

Further, the fuel self-supply tank 8 may be a model a1, a model B1, or a model C1. As shown in fig. 5, the C1 fuel self-supplying tank 8 includes an inner shell 801 and a bottom structure 804 installed at the bottom of the fuel self-supplying tank 8, wherein 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, the pressure of liquid ammonia can be borne only by the inner shell 801, and meanwhile, a PU insulating layer 803 is laid on the surface of the inner shell 801; furthermore, a sheet iron can be attached to the outer side of the PU insulating layer 803, so that liquid ammonia can be better kept cold. Preferably, as shown in fig. 3, the fuel self-supplying tank 8 of a1 type or B1 type includes an inner casing 801, an outer casing 802 covering the inner casing 801, and a bottom structure 804 mounted on the bottom of the fuel self-supplying tank 8, wherein an insulating layer 803 is applied to the inner surface of the outer casing 802. When the cabin capacity of the fuel self-supply cabin 8 is larger than 5000 cubic meters, the outer shell 802 needs to be arranged so as to bear leaked liquid depending on the structure of the outer shell 802 when the structure of the inner shell 801 fails, and meanwhile, the PU insulating layer 803 is laid on the inner surface of the outer shell 802 and used for keeping cold of liquid ammonia; the capacity of the fuel self-supply cabin 8 is 5000 cubic meters, and about 2 ten thousand miles can be sailed after one-time filling. Preferably, the outer shell of the a1 or B1 fuel self-supply cabin 8 is further provided with a passage port for personnel to enter, so that the personnel can conveniently check the state of the inner shell 801 and find the leakage of the ammonia fuel in time.

Further, as shown in fig. 1 and 9, the hull 1 is further provided with a compressor room 21 and a ventilating tower 14, the compressor room 21 is connected with the first pneumatic pipeline 11, the first pneumatic pipeline 11 is provided with a pressure sensing device, and the ventilating tower 14 is connected with the independent cabin. Preferably, the fuel self-supply cabin 8 is connected with a plurality of independent cabins through first gas pipelines 11 respectively, the plurality of first gas pipelines 11 share one section of pipeline, the compressor chamber 21 is connected with the shared pipeline of the plurality of first gas pipelines 11, when the pressure in each independent cabin exceeds the design value of the liquid tank, the stress valve 1101 is opened, ammonia gas flows into the pressure sensing device in the first gas pipelines 11, and at the moment, the compressor in the compressor chamber 21 works and is started in the liquefaction system, so that the pressure in each independent cabin is reduced; when the compressor fails, i.e., when the liquefaction system cannot be started, ammonia gas will now be vented from the gas permeable tower 14, reducing the pressure in each individual compartment. In the present embodiment, the number of the gas permeable towers 14 is one; in other embodiments, the number of the gas permeable towers 14 may correspond to the number of the independent compartments, i.e., one gas permeable tower 14 is separately arranged on each independent compartment.

Further, as shown in fig. 6 and 7, a boom 1501 is fixed on the hull 1, a fender 15 is placed on the boom 1501, and the fender 15 includes a center float 1502, a tire fender 1503 disposed on an outer wall of the center float 1502, a center lock 1504 disposed at both ends of the center float 1502, and a chain 1505 connecting the center lock 1504 with the center of the tire fender 1503. Preferably, the fender 15 has a spherical shape at both ends and a cylindrical shape in the middle. The interior of the central floating ball 1502 needs to maintain a certain pressure; the tire pad 1503 ensures proper elastic deformation. Further, in this embodiment, the number of the fender 15 is set to four, and in the normal navigation process, the fender 15 is placed on the boom 1501; when the ship is filled, the collision mat 15 is placed on the sea surface between the filling ship and the filled ship through the crane mechanism, so that the collision force between the filling ship and the filled ship is reduced, and the safety requirement of the ship on ammonia fuel filling is met.

Further, as shown in fig. 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 push compartments 18 are provided on the side walls of the bow and the stern of the hull 1. The mooring bay 16 is used to meet the mooring requirements of the vessel; when the ship does not start the main engine at the port, the power requirement of the port is maintained by supplying energy through the storage battery compartment 17; the side thrust compartment 18 provides the hull 1 with good handling properties.

Further, as shown in fig. 1 and 9, a human living room 19 is provided at the bow of the hull 1, and the leak treatment apparatus further includes a plurality of emergency shower rooms 20, the emergency shower rooms 20 being provided at the tops of the individual rooms. Preferably, the human accommodation compartment 19 is located at the forwardmost part of the vessel for the following purposes: the method has the advantages that the personnel living area and the ammonia fuel working area are thoroughly separated, and the risk of ammonia poisoning can be greatly reduced; secondly, the visual field adjustment and the minimum blind area shielding are realized (the ship is in any operation state, and the blind areas of the ship are less than 1 time of the ship length); and the third function is to more fully utilize the wide space of the rear deck surface. Further, the shape of the human living room 19 is upward at an angle of 45 degrees, which can reduce wind resistance. Preferably, the emergency bathing room 20 is internally provided with a eyewash basin, a portable ammonia gas leakage monitor and other devices, and the gas detection station 4 can be automatically started when monitoring that the volume concentration of ammonia per cubic meter in the air reaches 400ppm, so that personnel can rapidly clean the polluted ammonia gas.

Further, the hull 1 has a convex and flat deck, and the capacities of the first independent cabin 101, the second independent cabin 102 and the third independent cabin 103 can be increased under the condition that the main dimension frame of the hull 1 is limited. The convex flat deck is arranged at the position higher than the middle joint cabin 7, so that the limit of the cabin capacity of the liquid cabin in the existing design is broken through under the condition that the main dimension of the ship is fixed, the capacity of the liquid cabin is effectively expanded, and the change of the gravity center of the liquefied gas carrier is ensured to be small. Further, by arranging the hull 1 with the convex and flat deck, the area of the deck surface is effectively extended, and more equipment, such as the fender 15, can be arranged.

Further, a center longitudinal bulkhead 104 is provided inside the individual tanks, and the center longitudinal bulkhead 104 is provided on the fore-aft centerline to partition the individual tanks. As shown in fig. 2 and 10, first independent compartment 101 is partitioned into a first independent compartment 101 left compartment and a first independent compartment 101 right compartment by a longitudinal bulkhead 104; second independent cabin 102 is divided into a left cabin of second independent cabin 102 and a right cabin of second independent cabin 102 by a middle longitudinal cabin wall 104; third independent compartment 103 is divided by a longitudinal bulkhead 104 into a left compartment of third independent compartment 103 and a right compartment of third independent compartment 103. The provision of the intermediate longitudinal bulkhead 104 can effectively reduce the influence of independent tank sloshing on the structure of the hull 1. When the ship is impacted, only one cabin (the left cabin or the right cabin) is damaged, and the stability of the ship can be improved.

The invention discloses an ammonia fuel transportation and filling ship, which is characterized in that ammonia fuel is filled into a first independent cabin 101, a second independent cabin 102, a third independent cabin 103 and a fuel self-supply cabin 8 through a liquid cargo header 2 before sailing, the fuel self-supply cabin 8 transports the ammonia fuel into an ammonia fuel main engine 10 through a fuel supply pipe system, a first liquid pipeline 12 and a second gas pipeline 1301, and the ammonia fuel is combusted to push a ship body 1 to sail. When the ship needs to be filled, the fender 15 is firstly put on the sea surface to relieve the collision force between the ship and the ship, and then the filling manifold 3 on the independent cabin is used for filling ammonia fuel into the filled ship. In the navigation process, the gas detection station 4 monitors the ammonia concentration in the air, and when the ammonia concentration is detected to exceed the standard, the leaked ammonia gas is subjected to emergency treatment through equipment such as a washing tower 5, a middle closing cabin 7, an emergency bath room 20 and the like; when the pressure in the independent cabin is overlarge, the pressure in the independent cabin is emergently released by the equipment such as the compressor chamber 21 and the ventilating tower 14, so that accidents are avoided.

In conclusion, the present invention effectively overcomes various disadvantages of the prior art and has high industrial utilization value.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.