CN114665127A

CN114665127A - Marine hydrogen storage and supply system

Info

Publication number: CN114665127A
Application number: CN202210358501.1A
Authority: CN
Inventors: 任圣哲; 刘焕萍; 张明俊; 郑铭路; 王艳萍; 袁生浩; 许晗; 刘晓禹; 王林
Original assignee: Beijing Peric Hydrogen Technologies Co ltd
Current assignee: 718th Research Institute Of China Shipbuilding Corp; Beijing Peric Hydrogen Technologies Co ltd
Priority date: 2022-04-06
Filing date: 2022-04-06
Publication date: 2022-06-24

Abstract

The invention discloses a marine hydrogen storage and supply system, which comprises a hydrogen storage module arranged in a hydrogen storage cabin, and a filling module, a hydrogen supply module and a purging module which are arranged in a gas circuit control cabin; the purging module can be sequentially communicated with the filling module, the hydrogen storage module and the hydrogen supply module so as to blow nitrogen in a nitrogen source into a target pipeline to inert the marine hydrogen storage and supply system; the filling module can fill hydrogen entering a hydrogenation port into each fuel bottle in the hydrogen storage module; the hydrogen storage module can convey hydrogen stored in the hydrogen storage module into at least one fuel cell through the hydrogen supply module; wherein, each fuel cell is correspondingly provided with a bottle group comprising at least two fuel bottles so as to input hydrogen into the fuel cell. The invention can realize multi-channel rapid hydrogenation; the requirement of the ship on the redundancy of the power system is met, and the hydrogen storage and supply functions can be still ensured even if a single part is abnormal; the inerting function can automatically complete inerting and replacement of the hydrogen system pipeline.

Description

Marine hydrogen storage and supply system

Technical Field

The invention relates to the technical field of marine fuel storage, in particular to a marine hydrogen storage and supply system.

Background

The research demonstration of the hydrogen fuel ship in the upper part of the world is leading, a plurality of main hydrogen fuel ship projects are collected, however, the domestic hydrogen fuel ship still belongs to the preliminary stage, and in addition, the national maritime administration issues a ship application fuel cell power generation device guide and related regulations in turn in 2021 year, so that the hydrogen fuel power ship meeting the related regulations is urgently needed to be proposed.

Disclosure of Invention

The invention aims to provide a hydrogen storage and supply system for a ship, which is used for solving the problem that a hydrogen fuel power ship which can meet relevant regulations is lacked in the prior art.

The above object of the present invention can be achieved by the following technical solutions:

the invention provides a marine hydrogen storage and supply system, which comprises a hydrogen storage module arranged in a hydrogen storage cabin, and a filling module, a hydrogen supply module and a purging module which are arranged in a gas circuit control cabin; the purging module can be sequentially communicated with the filling module, the hydrogen storage module and the hydrogen supply module so as to blow nitrogen in a nitrogen source into a target pipeline to inert the marine hydrogen storage and supply system; the filling module can fill hydrogen entering a hydrogenation port into each fuel bottle in the hydrogen storage module; the hydrogen storage module can convey hydrogen stored in the hydrogen storage module into at least one fuel cell through the hydrogen supply module; wherein, each fuel cell is correspondingly provided with a bottle group comprising at least two fuel bottles so as to input hydrogen into the fuel cell.

Preferably, wherein the filling module comprises: at least two filling main pipelines which are arranged in parallel, wherein one end of each filling main pipeline is provided with the hydrogenation port, the other ends of the at least two filling main pipelines are connected in parallel with a plurality of filling branch pipelines, and each filling branch pipeline can fill hydrogen into at least two fuel bottles in the bottle group corresponding to the filling branch pipeline; the hydrogen filling device comprises a hydrogen filling main pipeline, wherein each filling main pipeline is sequentially provided with a filter, a one-way valve, a ball valve and an electromagnetic valve along the filling direction of hydrogen, and each filling main pipeline is also connected with a pressure monitoring pipeline and/or a hydrogen evacuation main pipeline.

Preferably, the pressure monitoring pipeline can be communicated with the filling main pipeline through a needle valve, and at least two pressure monitoring devices are parallelly connected into the pressure monitoring pipeline; and/or an electromagnetic valve and a needle valve are connected in parallel in the hydrogen evacuation main pipeline to control the on-off of the hydrogen evacuation main pipeline and the filling main pipeline.

Preferably, wherein the hydrogen storage module comprises: the fuel bottle group comprises a plurality of fuel bottles, a filling branch pipeline and a plurality of fuel bottle groups, wherein the fuel bottles are arranged in parallel, and at least two fuel bottles in each fuel bottle group are communicated through the filling branch pipeline so as to store hydrogen entering the fuel bottles; the two first emptying pipelines are respectively arranged at the inlet end and the outlet end of the fuel bottle so as to communicate the inlet end of each fuel bottle with the outlet end of each fuel bottle; the tail end of each first emptying pipeline is provided with a one-way valve so as to discharge gas in the first emptying pipeline.

Preferably, the tail end of each fuel bottle in the hydrogen storage module is provided with a pressure release device so as to communicate the tail end with the first emptying pipeline; and/or a bottle mouth of each fuel bottle in the hydrogen storage module is provided with a pressure monitoring device for monitoring hydrogen pressure in the fuel bottle, and the pressure monitoring device is provided with a positioning mark corresponding to the pressure range of the fuel bottle.

Preferably, wherein the hydrogen supply module comprises: a bus bar; the gas cylinder comprises a plurality of first gas supply main pipelines which are arranged in parallel, wherein one end of each first gas supply main pipeline is communicated with one cylinder group, the other ends of the plurality of first gas supply main pipelines are connected to a busbar in parallel, and a check valve and an electromagnetic valve are sequentially arranged in each first gas supply main pipeline along the flowing direction of gas; the fuel cell system comprises a plurality of second gas supply main pipelines which are arranged in parallel, wherein one end of each second gas supply main pipeline is communicated with one fuel cell, the other ends of the plurality of second gas supply main pipelines are connected to a busbar in parallel, and each second gas supply main pipeline is sequentially provided with an electromagnetic valve, a filter, a pressure reducing valve, the pressure monitoring pipeline, a second emptying branch pipeline, a first electromagnetic valve, a second electromagnetic valve and a ball valve along the flowing direction of gas; and a third evacuation line, the communication end of which has a solenoid valve and a needle valve connected in parallel to the busbar to enable evacuation of gas from the busbar by means of the solenoid valve and/or the needle valve.

Preferably, a plurality of the second emptying branch pipelines can be merged into the same emptying pipeline to form a second emptying pipeline.

Preferably, the second evacuation branch pipe communication end has a safety valve, a needle valve and a solenoid valve which are connected in parallel to the second gas supply main pipe, so that the safety valve, the solenoid valve or the needle valve can be used for exhausting gas in the second gas supply main pipe; the safety valve and the needle valve in the second emptying branch pipeline are connected between the pressure reducing valve in the second gas supply main pipeline and the first electromagnetic valve, and the electromagnetic valve in the second emptying branch pipeline is connected between the first electromagnetic valve and the second electromagnetic valve.

Preferably, the purging module comprises a nitrogen purging pipeline, and the pressure monitoring pipeline, the ball valve, the filter, the pressure reducing valve, the electromagnetic valve, the fourth evacuation pipeline and the one-way valve are sequentially arranged along the purging direction of nitrogen; the communication end of the fourth evacuation pipeline is provided with a safety valve, a needle valve and an electromagnetic valve which are connected into the nitrogen purging pipeline in parallel so as to exhaust gas in the nitrogen purging pipeline by using the safety valve, the electromagnetic valve or the needle valve.

Preferably, the hydrogen storage module, the filling module and the hydrogen supply module can be communicated through a bottle mouth combination valve arranged in the bottle group; and/or the number of the fuel cells is 4, the number of the bottle groups is 4, and each bottle group comprises 2 fuel bottles.

The invention has at least the following characteristics and advantages:

the invention can realize multi-channel rapid hydrogenation; the requirement of the ship on the redundancy of the power system is met, and even if a single part is abnormal, the hydrogen storage and supply function can be still ensured; the inerting function is provided, so that the inerting and replacement of the hydrogen system pipeline can be automatically completed; can meet the relevant requirements of the national maritime work.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a block diagram of a marine hydrogen storage and supply system according to the present invention;

FIG. 2 is a block diagram of a filling module according to the present invention;

FIG. 3 is a block diagram of the construction of a hydrogen storage module according to the present invention;

FIG. 4 is a block diagram of the hydrogen supply module of the present invention;

FIG. 5 is a block diagram of the purge module of the present invention.

Reference numerals and description:

100. a marine hydrogen storage and supply system; 1. a filling module; 11. filling the main pipeline; 12. filling branch pipelines; 13. a hydrogen evacuation main line; 2. a hydrogen storage module; 21. a bottle group; 211. a fuel bottle; 22. a first evacuation line; 3. a hydrogen supply module; 31. a bus bar; 32. a first main gas supply pipeline; 33. a second main gas supply pipeline; 34. a second evacuation line; 341. a second drain branch line; 35. a third evacuation line; 4. a purge module; 41. purging the pipeline with nitrogen; 42. A fourth evacuation line; 5. and a pressure monitoring pipeline.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the embodiments described below are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a marine hydrogen storage and supply system 100, please refer to fig. 1 to 5, which comprises a hydrogen storage module 2 installed in a hydrogen storage cabin, and a filling module 1, a hydrogen supply module 3 and a purging module 4 installed in a gas path control cabin; the purging module 4 can be sequentially communicated with the filling module 1, the hydrogen storage module 2 and the hydrogen supply module 3 so as to blow nitrogen in a nitrogen source into the target pipeline to inertize the marine hydrogen storage and supply system 100; the filling module 1 can fill hydrogen gas entering the hydrogenation port into each fuel bottle 211 in the hydrogen storage module 2; the hydrogen storage module 2 can convey the hydrogen stored in the hydrogen storage module into at least one fuel cell through the hydrogen supply module 3; wherein, each fuel cell is correspondingly provided with a bottle group 21 comprising at least two fuel bottles 211 so as to input hydrogen gas into the fuel cell.

The invention can automatically complete inerting and degassing, and the pipeline is in an inerting state when not in operation. In the non-working state of the hydrogen storage system, high-purity high-pressure hydrogen is stored in a hydrogen storage cylinder (namely the fuel cylinder 211) as far as possible, a pipeline is filled with hydrogen-nitrogen mixed gas with the hydrogen content not more than 0.4 percent (10 percent LEL), and all modules are in a closed state.

In some embodiments, referring to fig. 2, the filling module 1 includes at least two filling main pipelines 11 arranged in parallel, one end of each filling main pipeline 11 is provided with a hydrogen adding port, the other ends of the at least two filling main pipelines 11 are connected in parallel to a plurality of filling branch pipelines 12, and each filling branch pipeline 12 can fill hydrogen into at least two fuel bottles 211 in a bottle group 21 corresponding to the filling branch pipeline 12; wherein, a filter, a one-way valve, a ball valve and an electromagnetic valve are sequentially arranged in each filling main pipeline 11 along the filling direction of the hydrogen, and a pressure monitoring pipeline 5 and/or a hydrogen evacuation main pipeline 13 are/is also connected into each filling main pipeline 11. The invention can simultaneously carry out hydrogenation work by being provided with at least two filling main pipelines 11, thereby improving the filling efficiency and being convenient for redundant supply. In some preferred embodiments, two main filling lines 11 are provided in the filling module 1.

It should be understood by those skilled in the art that the solenoid valve can be remotely operated to open and close, and the ball valve can be manually operated to open and close, so that in actual use, a user can open and close the corresponding valve according to requirements.

Further, referring to fig. 2, the pressure monitoring pipeline 5 can be communicated with the filling main pipeline 11 through a needle valve, and at least two pressure monitoring devices are connected in parallel to the pressure monitoring pipeline 5, wherein the pressure monitoring devices can be a pressure transmitter (i.e. PT1001-PT1002 in fig. 2) and a pressure gauge (i.e. PI1001 in fig. 2), and preferably, the pressure monitoring pipeline 5 has two pressure transmitters and one pressure gauge. The invention can display the pressure in the pipeline on the spot by arranging the pressure monitoring pipeline 5, namely, the pressure at the front end of the filling main pipe of the ship is indicated. Further, referring to fig. 1, a solenoid valve and a needle valve are connected in parallel to the hydrogen evacuation main line 13 to control the connection and disconnection of the main filling line 11.

In some embodiments, referring to fig. 3, the hydrogen storage module 2 includes a plurality of bottle groups 21 arranged in parallel, and at least two fuel bottles 211 in each bottle group 21 are communicated through a filling branch line 12 to store hydrogen gas entering therein; two first emptying pipes 22 respectively provided at the inlet end and the outlet end of the fuel bottle 211 to communicate the inlet end of each fuel bottle 211 with the outlet end of each fuel bottle 211; wherein the end of each first evacuation line 22 is provided with a one-way valve to allow the gas therein to be evacuated.

Further, referring to fig. 3, the tail of each fuel bottle 211 in the hydrogen storage module 2 is provided with a pressure release device to communicate with the first evacuation line 22; further, referring to fig. 1, the bottle mouth of each fuel bottle 211 in the hydrogen storage module 2 is provided with a pressure monitoring device for monitoring the hydrogen pressure therein, and the pressure monitoring device has a positioning mark corresponding to the pressure range of the fuel bottle 211. That is, each fuel bottle 211 is provided with an in-situ display pressure sensor (pressure transducer or pressure gauge, such as PT2001-PT2008 in fig. 3) that can directly detect the pressure inside the bottle, and the maximum and minimum pressure values allowed for the fuel bottle 211 are marked on the corresponding pressure sensor.

In some embodiments, referring to fig. 4, the hydrogen supply module 3 includes a bus bar 31, a plurality of first gas supply main pipelines 32 arranged in parallel, a plurality of second gas supply main pipelines 33 arranged in parallel, and a third evacuation pipeline 35.

Specifically, one end of each of the first gas supply main pipelines 32 is communicated with one of the bottle groups 21, the other ends of the plurality of first gas supply main pipelines 32 are connected in parallel to the bus bar 31, and a check valve and an electromagnetic valve are sequentially arranged in each of the first gas supply main pipelines 32 along the flowing direction of gas; one end of each second gas supply main pipeline 33 is communicated with one fuel cell, the other ends of the plurality of second gas supply main pipelines 33 are connected to the busbar 31 in parallel, and along the flowing direction of gas, an electromagnetic valve, a filter, a pressure reducing valve, a pressure monitoring pipeline 5, a second emptying branch pipeline 341, a first electromagnetic valve, a second electromagnetic valve and a ball valve are sequentially arranged in each second gas supply main pipeline 33; the third evacuation line 35, the communication end of which has a solenoid valve and a needle valve incorporated in parallel into the busbar 31, enables the gas in the busbar 31 to be evacuated by means of the solenoid valve and/or the needle valve. The pressure monitoring pipelines 5 comprise pressure transmitters PT3001-PT3008 and pressure gauges PI3001-PI 3004. In some embodiments, all of the hydrogen fuel supply lines are fully welded, i.e., first gas supply main 32 and second gas supply main 33 are fully welded.

Further, referring to fig. 4, a plurality of second drain branch pipes 341 can merge into the same drain pipe to form the second drain pipe 34. By adopting the design, any air supply pipeline can be isolated, so that the normal use of other air supply pipelines is not influenced after any air supply pipeline is abnormal.

In some embodiments, referring to fig. 4, the communication end of the second drain branch 341 has a safety valve, a needle valve and a solenoid valve connected in parallel to the second gas supply main 33 to allow the safety valve, the solenoid valve or the needle valve to drain the gas in the second gas supply main 33; the safety valve and the needle valve in the second drain branch line 341 are connected between the pressure reducing valve and the first solenoid valve in the second gas supply main line 33, and the solenoid valve in the second drain branch line 341 is connected between the first solenoid valve and the second solenoid valve.

In some embodiments, referring to fig. 5, the purge module 4 includes a nitrogen purge line 41, and a pressure monitoring line 5 (on which a pressure transmitter PT4001, a pressure transmitter PT4002, and a pressure gauge PI4001 are disposed), a ball valve, a filter, a pressure reducing valve, a solenoid valve, a fourth evacuation line 42, and a check valve are disposed in sequence along a purge direction of nitrogen; the communicating end of the fourth evacuation line 42 has a safety valve PSV4001, a needle valve NV4002 and a solenoid valve SV4002 connected in parallel to the nitrogen purge line 41 so that the gas in the nitrogen purge line 41 can be evacuated by the safety valve, the solenoid valve or the needle valve.

Further, referring to fig. 1, the hydrogen storage module 2, the filling module 1 and the hydrogen supply module 3 can be communicated through a bottle mouth combination valve arranged in the bottle group 21, that is, each gas fuel supply outlet of the fuel bottle 211 is provided with a combination valve which can be operated manually and automatically, and in some preferred embodiments, the combination valve is further provided with a temperature sensor, a filter and the like.

In some embodiments, referring to fig. 1, the number of fuel cells is 4, the number of bottle groups 21 is 4, and each bottle group 21 includes 2 fuel bottles 211. By adopting the design, the fuel bottle 211 in each bottle group 21 can be isolated, so that the use of other fuel bottles 211 is not influenced on the premise that any fuel bottle 211 is unavailable. In some embodiments, the fuel bottle 211 is a CGH bottle, i.e., it employs a 320L composite wrap bottle, operating at a pressure of 35 MPa.

In some embodiments, the system of the present invention requires the proper placement of the hydrogen leak probe, flame detector and ventilation system depending on the conditions of the cabin; furthermore, the electrical control and data acquisition of the system are completed by the controller, and the linkage of system control is realized under dangerous conditions so as to ensure the safety of gas supply.

The invention can realize multi-channel rapid hydrogenation; the requirement of the ship on the redundancy of the power system is met, and the hydrogen storage and supply functions can be still ensured even if a single part is abnormal; the inerting function is provided, so that the inerting and replacement of the hydrogen system pipeline can be automatically completed; can meet the relevant requirements of the national maritime work office.

The present invention will be further described and illustrated by reference to an embodiment, which is shown in fig. 1 to 5:

the marine hydrogen storage and supply system 100 is a generic term for all devices and components installed on a ship from a hydrogen inlet to a hydrogen-using device inlet, which are related to the filling, storage, supply and control of hydrogen. For convenience of description, the present invention divides each part of the marine hydrogen storage and supply system 100 into the following sub-modules according to their functions, and those skilled in the art can divide and rename them, so long as their structures are the same as those of the present invention, and they should be within the scope of the present invention. The specific functional modules are as follows:

1) filling module 1

The device mainly comprises a hydrogenation port, a filter, a one-way valve, a pressure sensor, necessary connecting pipelines and other parts, and has the main function of finishing the filling butt joint with a hydrogenation station and safely filling clean high-pressure hydrogen into a high-pressure hydrogen cylinder.

2) Hydrogen storage module 2

Mainly comprises a high-PRESSURE hydrogen cylinder (namely, a fuel cylinder 211), a combination cylinder valve (namely, a cylinder mouth valve), PRESSURE RELIEF DEVICE (PRD, namely, a PRESSURE relief device, belongs to a safety protection device and can not be recovered once being operated), necessary connecting pipelines and the like, and the main function of the hydrogen cylinder is to safely store hydrogen injected from a hydrogen station in the high-PRESSURE hydrogen cylinder.

3) Hydrogen supply module 3

Mainly comprises an electromagnetic valve, a pressure reducer, a safety valve, a filter, various valves, a release port (namely an exhaust port), necessary connecting pipelines and the like, and is mainly used for safely providing clean hydrogen gas with applicable pressure for hydrogen devices such as a fuel cell system and the like.

4) Purge module 4

The inerting device mainly comprises an electromagnetic valve, a pressure reducer, a safety valve, a filter, various valves, a dispersing port, necessary connecting pipelines and the like, and has the main function of introducing nitrogen into a main pipeline of the hydrogen storage system to complete inerting of the hydrogen storage system.

The filling process of the invention is as follows:

(1) before the hydrogen filling is started, a hydrogen filling port (JQK1001) is connected with a hydrogen filling gun, a filling ball valve (HV1001) of a filling module 1 is manually opened, and an electromagnetic valve (SV1001) of the filling module 1 and electromagnetic valves (SV3001, SV3002, SV3003 and SV3004) of a hydrogen supply module 3 are opened through electrical control.

(2) Hydrogen is introduced, and an electromagnetic valve (SV3021) or a manual needle valve (NV3005) is opened and closed in cooperation with the action of adding hydrogen, so that the pipeline is filled with hydrogen. It will be appreciated by those skilled in the art that the introduction of hydrogen into the system until it is sufficient requires a sequence of events to ensure the safety of the process, and therefore multiple openings and closings of the associated valve components.

(3) The hydrogen filling is started by the hydrogenation gun, high-pressure hydrogen sequentially passes through the hydrogenation port (JQK1001), the filter (F1001), the check valve (CV1001), the manual ball valve (HV1001), the check valve (CV1002, CV1003, CV1004 and CV1005) and enters the hydrogen storage cylinder group 21 until the hydrogen in the hydrogen cylinder group 21 reaches 35MPa or the required pressure value.

In the filling process, a valve of a filling pipeline is in a normally open state, and the filling of hydrogen can be cut off through an emergency stop button in an emergency, and the hydrogen filling is required to be controlled independently.

The hydrogen supply process of the invention is as follows:

and opening the bottle mouth valve of the corresponding bottle group 21 and all the electromagnetic valves on the corresponding main electric pile pipelines as required. High-pressure hydrogen in the fuel bottle 211 enters a hydrogen supply pipeline through a bottle mouth valve (PKF2001-PKF2008), enters a busbar 31 through a corresponding one-way valve (CV3001-CV3004) and an electromagnetic valve (SV3001-SV3004), and sequentially passes through a pressure reducing valve side electromagnetic valve (SV3005-SV3008), a filter (F3001-F3004) and a pressure reducing valve (PRV3001-PRV3004) to be reduced to low-pressure hydrogen from high-pressure hydrogen, and then passes through the electromagnetic valve (SV3009-SV3012), the electromagnetic valve (SV3013-SV3016) and a manual ball valve (HV3001-HV3004) to reach the electric pile.

The inerting process of the present invention is as follows:

opening a corresponding emptying electromagnetic valve (the inerting is SV3021 after filling, and the inerting is SV3017-SV3020 after stopping hydrogen supply) or a manual valve (the inerting is NV3005 after filling, and the inerting is NV3001-NV3004 after stopping hydrogen supply) according to the state before inerting, discharging the hydrogen in the pipeline to 1bar-2bar, opening a manual ball valve HV4001 and an electromagnetic valve SV4001, allowing the high-pressure nitrogen to sequentially pass through the manual ball valve HV4001, a filter F4001 and a pressure reducing valve SV4001 to reduce the pressure to the nitrogen with the pressure of 2MPa, allowing the nitrogen to enter the main pipeline through a one-way valve CV4001 until the pressure in the high-pressure pipeline reaches 2MPa (the pressure in the low-pressure pipeline reaches the outlet set pressure), then opening the corresponding emptying electromagnetic valve or manual valve to 1bar-2bar, and repeatedly making the hydrogen content not more than 0.4% (10% LEL).

The invention has at least the following characteristics and advantages:

the hydrogen storage and supply system can provide hydrogen fuel for the hydrogen fuel power ship and can meet the requirement of commercial operation of the hydrogen fuel battery power ship; the requirements of the maritime administration on the marine hydrogen system are met; the requirement of the ship on the redundancy of the power system is met; the requirement of the ship on fuel pipeline inerting is met.

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.

Claims

1. A marine hydrogen storage and supply system is characterized by comprising a hydrogen storage module arranged in a hydrogen storage cabin, and a filling module, a hydrogen supply module and a purging module which are arranged in a gas circuit control cabin;

the purging module can be sequentially communicated with the filling module, the hydrogen storage module and the hydrogen supply module so as to blow nitrogen in a nitrogen source into a target pipeline to inert the marine hydrogen storage and supply system;

the filling module can fill hydrogen entering a hydrogenation port into each fuel bottle in the hydrogen storage module;

the hydrogen storage module can convey hydrogen stored in the hydrogen storage module into at least one fuel cell through the hydrogen supply module;

wherein, each fuel cell is correspondingly provided with a bottle group comprising at least two fuel bottles so as to input hydrogen into the fuel cell.

2. The marine hydrogen storage and supply system according to claim 1, wherein the filling module comprises:

at least two filling main pipelines which are arranged in parallel, wherein one end of each filling main pipeline is provided with the hydrogenation port, the other ends of the at least two filling main pipelines are connected in parallel with a plurality of filling branch pipelines, and each filling branch pipeline can fill hydrogen into at least two fuel bottles in the bottle group corresponding to the filling branch pipeline;

the hydrogen filling device comprises a hydrogen filling main pipeline, wherein each filling main pipeline is sequentially provided with a filter, a one-way valve, a ball valve and an electromagnetic valve along the filling direction of hydrogen, and each filling main pipeline is also connected with a pressure monitoring pipeline and/or a hydrogen evacuation main pipeline.

3. The marine hydrogen storage and supply system according to claim 2,

the pressure monitoring pipeline can be communicated with the filling main pipeline through a needle valve, and at least two pressure monitoring devices are parallelly connected into the pressure monitoring pipeline; and/or

An electromagnetic valve and a needle valve are connected in parallel in the hydrogen evacuation main pipeline to control the connection and disconnection between the hydrogen evacuation main pipeline and the filling main pipeline.

4. The marine hydrogen storage and supply system of claim 3 wherein the hydrogen storage module comprises:

the fuel bottle group comprises a plurality of fuel bottles, a filling branch pipeline and a plurality of fuel bottle groups, wherein the fuel bottles are arranged in parallel, and at least two fuel bottles in each fuel bottle group are communicated through the filling branch pipeline so as to store hydrogen entering the fuel bottles;

the two first emptying pipelines are respectively arranged at the inlet end and the outlet end of the fuel bottle so as to communicate the inlet end of each fuel bottle with the outlet end of each fuel bottle;

the tail end of each first emptying pipeline is provided with a one-way valve so as to discharge gas in the first emptying pipeline.

5. The marine hydrogen storage and supply system according to claim 4,

the tail of each fuel bottle in the hydrogen storage module is provided with a pressure release device so as to communicate the pressure release device with the first emptying pipeline; and/or

The bottle mouth of each fuel bottle in the hydrogen storage module is provided with a pressure monitoring device for monitoring hydrogen pressure in the fuel bottle, and the pressure monitoring device is provided with a positioning mark corresponding to the pressure range of the fuel bottle.

6. The marine hydrogen storage and supply system of claim 5, wherein the hydrogen supply module comprises:

a bus bar;

the gas cylinder comprises a plurality of first gas supply main pipelines which are arranged in parallel, wherein one end of each first gas supply main pipeline is communicated with one cylinder group, the other ends of the plurality of first gas supply main pipelines are connected to a busbar in parallel, and a check valve and an electromagnetic valve are sequentially arranged in each first gas supply main pipeline along the flowing direction of gas;

the fuel cell system comprises a plurality of second gas supply main pipelines which are arranged in parallel, wherein one end of each second gas supply main pipeline is communicated with one fuel cell, the other ends of the plurality of second gas supply main pipelines are connected to a busbar in parallel, and each second gas supply main pipeline is sequentially provided with an electromagnetic valve, a filter, a pressure reducing valve, the pressure monitoring pipeline, a second emptying branch pipeline, a first electromagnetic valve, a second electromagnetic valve and a ball valve along the flowing direction of gas;

and a third evacuation line, the communication end of which has a solenoid valve and a needle valve connected in parallel to the busbar to enable evacuation of gas from the busbar by means of the solenoid valve and/or the needle valve.

7. The marine hydrogen storage and supply system according to claim 6, wherein a plurality of the second evacuation branch pipes can merge into the same evacuation pipe to form a second evacuation pipe.

8. The marine hydrogen storage and supply system according to claim 7, wherein the second exhaust branch pipe communication end has a safety valve, a needle valve and a solenoid valve connected in parallel to the second gas supply main pipe so as to exhaust gas in the second gas supply main pipe by using the safety valve, the solenoid valve or the needle valve;

the safety valve and the needle valve in the second emptying branch pipeline are connected between the pressure reducing valve in the second gas supply main pipeline and the first electromagnetic valve, and the electromagnetic valve in the second emptying branch pipeline is connected between the first electromagnetic valve and the second electromagnetic valve.

9. The marine hydrogen storage and supply system according to claim 8, wherein the purging module comprises a nitrogen purging pipeline, and the pressure monitoring pipeline, the ball valve, the filter, the pressure reducing valve, the solenoid valve, the fourth evacuation pipeline and the one-way valve are sequentially arranged along a purging direction of nitrogen;

the communication end of the fourth evacuation pipeline is provided with a safety valve, a needle valve and an electromagnetic valve which are connected into the nitrogen purging pipeline in parallel so as to exhaust gas in the nitrogen purging pipeline by using the safety valve, the electromagnetic valve or the needle valve.

10. Marine hydrogen storage and supply system according to any of claims 1 to 9,

the hydrogen storage module, the filling module and the hydrogen supply module can be communicated through a bottle opening combination valve arranged in the bottle group; and/or

The number of the fuel cells is 4, the number of the bottle groups is 4, and each bottle group comprises 2 fuel bottles.