CN219677300U - Marine hydrogen fuel cell system and ship - Google Patents

Abstract

The utility model discloses a marine hydrogen fuel cell system and a ship. The marine hydrogen fuel cell system includes a cabinet, a stack dilution zone, a fuel zone, and a first fan. The cabinet is provided with a first accommodating cavity, a first air inlet and a first air outlet, and the first air inlet and the first air outlet are respectively communicated with the first accommodating cavity. The galvanic pile dilution zone comprises a first box body and a galvanic pile, the first box body is provided with a second accommodating cavity, the galvanic pile is accommodated in the second accommodating cavity, the fuel zone comprises a second box body and a hydrogen subsystem, the second box body is provided with a third accommodating cavity, the hydrogen subsystem is accommodated in the third accommodating cavity, and the first box body and the second box body are both positioned in the first accommodating cavity. The second accommodating cavity and the third accommodating cavity are communicated with the first air inlet, and the second accommodating cavity and the third accommodating cavity are communicated with the first air outlet. The hydrogen leaked from the galvanic pile dilution zone and the fuel zone is discharged in a negative pressure manner through the first fan, so that the hydrogen can be discharged from the first air outlet, and the safety of the marine hydrogen fuel cell system is improved.

Description

Marine hydrogen fuel cell system and ship

Technical Field

The utility model relates to the technical field of fuel cells, in particular to a marine hydrogen fuel cell system and a ship.

Background

The hydrogen fuel cell is a power generation device for directly converting chemical energy of hydrogen and oxygen into electric energy, and the system mainly comprises a galvanic pile, a hydrogen system, an air system, a thermal management system, an electric control system and the like. In the related art, a hydrogen fuel cell system for a vehicle has been developed more mature, but the air system design of the hydrogen fuel cell system for the vehicle is designed only for the air path required by the fuel cell reaction, and only positive pressure ventilation or no ventilation measures are adopted at all for the hydrogen leaked by the system to ensure safety. In addition, because the ship has more strict requirements on ventilation measures due to the existence of a closed cabin, and the hydrogen fuel cell system for the vehicle is difficult to directly use, the hydrogen fuel cell system needs to be improved according to the application environment of the ship.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a marine hydrogen fuel cell system, which can improve the safety of the marine hydrogen fuel cell system.

The utility model also provides a ship with the marine hydrogen fuel cell system.

According to an embodiment of the present utility model, a hydrogen fuel cell system for a ship includes:

the cabinet is provided with a first accommodating cavity, a first air inlet and a first air outlet, and the first air inlet and the first air outlet are respectively communicated with the first accommodating cavity;

the galvanic pile dilution zone comprises a first box body and a galvanic pile, wherein the first box body is provided with a second accommodating cavity, the galvanic pile is accommodated in the second accommodating cavity, and the first box body is positioned in the first accommodating cavity;

the fuel zone comprises a second box body and a hydrogen subsystem, the second box body is provided with a third accommodating cavity, the hydrogen subsystem is accommodated in the third accommodating cavity, and the second box body is positioned in the first accommodating cavity;

the first fan is communicated with the first air outlet and positioned at the outer side of the cabinet and is used for pumping air from the interior of the cabinet to the outside;

the second accommodating cavity and the third accommodating cavity are communicated with the first air inlet, and the second accommodating cavity and the third accommodating cavity are communicated with the first air outlet.

The marine hydrogen fuel cell system provided by the embodiment of the utility model has at least the following beneficial effects: the hydrogen leaked from the galvanic pile dilution zone and the fuel zone is discharged in a negative pressure manner through the first fan, so that the hydrogen can be discharged from the first air outlet, the possibility that the hydrogen is further leaked under the action of air pressure can be effectively reduced compared with positive pressure ventilation, the safety of the hydrogen fuel cell system for the ship is improved, and the hydrogen fuel cell system is more suitable for the ship.

According to some embodiments of the utility model, the cabinet is further provided with a second air inlet and a second air outlet, and the second air inlet and the second air outlet are respectively communicated with the first accommodating cavity; the marine hydrogen fuel cell system further comprises a second fan which is communicated with the second air outlet and is positioned at the outer side of the cabinet and used for pumping gas from the inner part of the cabinet to the outer part.

According to some embodiments of the utility model, the first air outlet is communicated with the upper side of the first box body in the gravity direction, and the first air inlet is communicated with the lower side of the first box body in the gravity direction; and/or the first air outlet is communicated with the upper side of the second box body in the gravity direction, and the first air inlet is communicated with the lower side of the second box body in the gravity direction.

According to some embodiments of the utility model, the marine hydrogen fuel cell system further comprises a first pipeline and a second pipeline, wherein the first pipeline and the second pipeline are respectively provided with three connecting ends, the three connecting ends of the first pipeline are respectively communicated with the first air inlet, the second accommodating cavity and the third accommodating cavity, and the three connecting ends of the second pipeline are respectively communicated with the first air outlet, the second accommodating cavity and the third accommodating cavity.

According to some embodiments of the utility model, the marine hydrogen fuel cell system further comprises a first hydrogen concentration sensor, a second hydrogen concentration sensor and a third hydrogen concentration sensor, wherein the first hydrogen concentration sensor is arranged on the outer surface of the first box body, the second hydrogen concentration sensor is arranged on the outer surface of the second box body, the third hydrogen concentration sensor is arranged on the inner surface of the cabinet, and the third hydrogen concentration sensor is positioned on the upper side of the galvanic pile dilution zone in the gravity direction and the upper side of the fuel zone in the gravity direction.

According to some embodiments of the utility model, the marine hydrogen fuel cell system further comprises a filtration device comprising a coarse filter and a fine filter, the coarse filter, the fine filter and the galvanic pile dilution zone being in communication in sequence; the coarse filter is arranged at the outer side of the cabinet and is used for performing coarse filtration on external gas and transmitting the gas after coarse filtration to the fine filter; the fine filter is arranged in the first accommodating cavity and is used for carrying out fine filtration on gas and conveying the gas after suction filtration to the galvanic pile dilution zone.

According to some embodiments of the utility model, the coarse filter comprises a primary filter, a middle-efficiency filter and a high-efficiency filter which are arranged in sequence.

According to some embodiments of the utility model, the fine filter is a centrifugal air filter comprising a first filter layer and a second filter layer, the first filter layer being wrapped outside the second filter layer, the first filter layer being for physical filtration and the second filter layer being for chemisorption filtration.

According to some embodiments of the utility model, the marine hydrogen fuel cell system further comprises an air flow meter, an air compressor, an intercooler, a sealing valve, a humidifier, a back pressure valve, a mixing chamber, a third pipeline and a fourth pipeline, wherein the cabinet is further provided with a third air outlet, the third air outlet is communicated with the first accommodating cavity, the fine filter, the air flow meter, the air compressor, the intercooler, the sealing valve, the humidifier and the galvanic pile dilution zone are sequentially communicated through the third pipeline, and the galvanic pile dilution zone, the humidifier, the back pressure valve, the mixing chamber and the third air outlet are sequentially communicated through the fourth pipeline.

The ship according to the embodiment of the utility model comprises the hydrogen fuel cell system for ship according to the above embodiment.

The ship according to the embodiment of the utility model has at least the following beneficial effects: by applying the marine hydrogen fuel cell system provided by the embodiment of the utility model, the safety of the hydrogen fuel cell system can be improved, so that the hydrogen fuel cell system meets the ship running specification when being applied, and the safety of the ship in the running process is ensured.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the accompanying drawings and examples, in which:

FIG. 1 is a schematic view of a marine hydrogen fuel cell system according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a portion of a marine hydrogen fuel cell system according to an embodiment of the present utility model;

fig. 3 is another schematic view of a portion of a marine hydrogen fuel cell system according to an embodiment of the utility model.

Reference numerals:

a marine hydrogen fuel cell system 100;

the cabinet 200, the first accommodating cavity 210, the first air inlet 220, the first air outlet 230, the second air inlet 240, the second air outlet 250, the third air inlet 260 and the third air outlet 270;

a fuel zone 300, a second tank 310, a third accommodation chamber 311, a hydrogen subsystem 320;

a galvanic pile dilution zone 400, a first box 410, a second accommodation cavity 411, a galvanic pile 420;

a first fan 500, a second fan 510;

a first line 600, a second line 610, a connection 620, a third line 630, a fourth line 640;

a filtering device 700, a coarse filter 710, a fine filter 720;

air flow meter 800, air compressor 810, intercooler 820, sealing valve 830, humidifier 840, temperature and pressure integrated sensor 850, back pressure valve 860, mixing chamber 870;

a first hydrogen concentration sensor 900, a second hydrogen concentration sensor 910, a third hydrogen concentration sensor 920, and a fourth hydrogen concentration sensor 930.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, the meaning of a number is one or more, the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of a number is understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

In the description of the present utility model, the descriptions of the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Aiming at the problems that the hydrogen fuel cell system for vehicles in the related art is not suitable for ships because only positive pressure ventilation or no ventilation measures are adopted to ensure the safety of the system when the hydrogen is leaked, the embodiment of the utility model discharges the leaked hydrogen in a negative pressure ventilation mode, ensures that the leaked hydrogen can be discharged, reduces the possibility of hydrogen diffusion, improves the safety of the hydrogen fuel cell system, ensures that the hydrogen fuel cell system can meet the safety requirement of ships, and is more suitable for ships.

The following describes a hydrogen fuel cell system for a ship and a ship according to embodiments of the present utility model with reference to the drawings.

Referring to fig. 1 and 2, a marine hydrogen fuel cell system 100 according to an embodiment of the present utility model includes a cabinet 200, a stack dilution zone 400, a fuel zone 300, and a first fan 500. The cabinet 200 is provided with a first accommodating cavity 210, a first air inlet 220 and a first air outlet 230, the first air inlet 220 and the first air outlet 230 are respectively communicated with the first accommodating cavity 210, and the cabinet 200 is used for providing structural support for the marine hydrogen fuel cell system 100 and forming a closed space through the first accommodating cavity 210 to ensure safe and stable operation of the system. The galvanic pile dilution zone 400 includes a first casing 410 and a galvanic pile 420, the first casing 410 is provided with a second accommodating cavity 411, the galvanic pile 420 is accommodated in the second accommodating cavity 411, the first casing 410 is located in the first accommodating cavity 210, the first casing 410 provides a closed space for the galvanic pile 420, so as to ensure stable operation and safety of the galvanic pile 420, and limit the space for hydrogen leakage. The fuel zone 300 includes a second tank 310 and a hydrogen subsystem 320, the second tank 310 is provided with a third accommodating cavity 311, the hydrogen subsystem 320 is accommodated in the third accommodating cavity 311, the second tank 310 is located in the first accommodating cavity 210, and the first tank 410 provides a closed space for the hydrogen subsystem 320, so as to ensure stable operation and safety of the hydrogen subsystem 320 and limit the space for hydrogen leakage. Wherein, the second accommodating cavity 411 and the third accommodating cavity 311 are both communicated with the first air inlet 220, and the second accommodating cavity 411 and the third accommodating cavity 311 are both communicated with the first air outlet 230.

The first fan 500 communicates in first air outlet 230 and is located the outside of rack 200, and first fan 500 is used for taking out outside with gas from the inside of rack 200, carries out the negative pressure to the hydrogen that the galvanic pile dilution zone 400 and fuel zone 300 were revealed through first fan 500 and discharges, can ensure that the hydrogen is discharged from first air outlet 230, compares in utilizing positive pressure ventilation, can effectively reduce the possibility that the hydrogen took place further to reveal under the effect of atmospheric pressure, improves the security of marine hydrogen fuel cell system 100 for the hydrogen fuel cell system is more suitable for the marine.

It can be understood that the positive pressure ventilation is to blow air from outside to inside by arranging the blower at the air inlet to press the air inside to flow out from the air outlet, but in the pressing process, the air is more likely to leak from the gap of the pipeline connection due to the increase of pressure, so that the hydrogen is likely to leak from the gap to other areas in the process, and finally leak to other areas outside the cabinet 200 and enter the hull, so that the safety of the positive pressure ventilation is lower.

Specifically, the first fan 500 may be selected as an explosion-proof fan conventional in the art, and the number of the first fan 500 and the first air outlet 230 may be correspondingly provided with a plurality of first fans 500, or one first air outlet 230 may be connected with a plurality of first fans 500, the actual number of the first fans 500 and the first air outlet 230 may be adaptively changed according to the requirement for exhausting gas, and the plurality of first fans 500 may be mutually standby, so that after a certain first fan 500 fails, another first fan 500 may be started to continue exhausting gas.

The second accommodating cavity 411 is communicated with the first air outlet 230, the third accommodating cavity 311 is communicated with the first air outlet 230, the second accommodating cavity 411 is communicated with the first air inlet 220, and the third accommodating cavity 311 is communicated with the first air inlet 220 through pipelines. In some embodiments, the communication manner is selected to be serial communication, for example, the first air inlet 220, the second accommodating cavity 411, the third accommodating cavity 311, and the first air outlet 230 are serial communication in sequence through pipelines (not shown in the figure). Referring to fig. 2, in a further embodiment, the communication manner is selected to be parallel communication, the hydrogen fuel cell system 100 for a ship further includes a first pipeline 600 and a second pipeline 610, the first pipeline 600 and the second pipeline 610 are respectively provided with three connection ends 620, the three connection ends 620 of the first pipeline 600 are respectively communicated with the first air inlet 220, the second accommodating cavity 411 and the third accommodating cavity 311, and the three connection ends 620 of the second pipeline 610 are respectively communicated with the first air outlet 230, the second accommodating cavity 411 and the third accommodating cavity 311. The second accommodating cavity 411 and the third accommodating cavity 311 are communicated with the first air inlet 220 and the first air outlet 230 respectively in a parallel connection mode, so that the exhaust of the galvanic pile dilution zone 400 and the fuel zone 300 is relatively independent, and compared with a serial connection mode, the device of the rear end zone can be prevented from being influenced by the hydrogen leakage of the front end zone, and the safety of the marine hydrogen fuel cell system 100 is further improved.

It will be readily appreciated that components such as lines and valves are disposed within the galvanic dilution zone 400 and the fuel zone 300 for gas path connection, and that hydrogen leakage typically occurs at the connection of the components, and that the utility model will not be described in detail since the components and connections within the galvanic dilution zone 400 and the fuel zone 300 are conventional in the art. The marine hydrogen fuel cell system 100 according to the embodiment of the present utility model further includes a thermal management system and an electric control system to realize complete operation of the system, and since the thermal management system and the electric control system also adopt conventional options in the art, the present utility model will not be described in detail.

Although the galvanic pile dilution zone 400 and the fuel zone 300 are sealed by the first and second tanks 410 and 310, respectively, hydrogen may still leak to the outside of the first and second tanks 410 and 310 into the first accommodation chamber 210, affecting other components in the first accommodation chamber 210, due to the influence of the tightness. In order to solve the above-mentioned problems, the present utility model further provides an improvement, referring to fig. 1 and 2, the cabinet 200 is further provided with a second air inlet 240 and a second air outlet 250, and the second air inlet 240 and the second air outlet 250 are respectively communicated with the first accommodating cavity 210; the marine hydrogen fuel cell system 100 further includes a second blower 510, the second blower 510 being connected to the second air outlet 250 and located outside the cabinet 200, for drawing the gas from the inside of the cabinet 200 to the outside. Through the cooperation of the second air inlet 240, the second air outlet 250 and the second fan 510, the hydrogen in the first accommodating cavity 210 leaked from the galvanic pile dilution zone 400 and the fuel zone 300 can be discharged, so that the normal operation of other components is ensured, the leaked hydrogen is ensured to be discharged correctly, and the safety of the marine hydrogen fuel cell system 100 is further improved.

Since hydrogen is leaked from the hydrogen fuel cell system, the hydrogen has a density smaller than that of air, and thus the hydrogen moves upward against the direction of gravity. Further, referring to fig. 1 and 2, by communicating the first air outlet 230 with the upper side of the first tank 410 in the gravity direction, and communicating the first air inlet 220 with the lower side of the first tank 410 in the gravity direction, the flow direction of the gas can conform to the property of the hydrogen, and the hydrogen is introduced from the lower side of the first tank 410, extruded from the bottom to the upper side of the first tank 410 and conveyed to the first air outlet 230, so that the discharge of the leaked hydrogen is ensured, and the possibility of the hydrogen accumulating in the first tank 410 is reduced. Similarly, the first air outlet 230 can be connected to the upper side of the second tank 310 in the gravity direction, and the first air inlet 220 is connected to the lower side of the second tank 310 in the gravity direction, so as to reduce the possibility of hydrogen stacking in the second tank 310.

It can be understood that the first air outlet 230 is connected to the upper side of the first case 410 in the gravity direction, which means that the first air outlet 230 is located at the upper side of the first case 410 in the gravity direction, and the air flows out of the first case 410 from the upper side of the first case 410 in the gravity direction. The first air inlet 220 is connected to the lower side of the first case 410 in the gravity direction, which means that the first air inlet 220 is located at the lower side of the first case 410 in the gravity direction, and the air flows into the first case 410 from the lower side of the first case 410 in the gravity direction. The communication at the second housing 310 is the same.

As an improvement of another aspect of the above-described aspects, in order to monitor the leakage condition of the hydrogen gas, the hydrogen fuel cell system 100 for a ship further includes a first hydrogen concentration sensor 900, a second hydrogen concentration sensor 910, and a third hydrogen concentration sensor 920. The first hydrogen concentration sensor 900 is provided at an outer surface of the first tank 410 to detect the concentration of hydrogen gas leaked around the first tank 410. The second hydrogen concentration sensor 910 is disposed on the outer surface of the second tank 310 to detect the concentration of the hydrogen leaked around the second tank 310, the third hydrogen concentration sensor 920 is disposed on the inner surface of the cabinet 200 to detect the concentration of the hydrogen accumulated in the cabinet 200, and the third hydrogen concentration sensor 920 is disposed on the upper side of the galvanic pile dilution zone 400 in the gravity direction and the upper side of the fuel zone 300 in the gravity direction to conform to the density property of the hydrogen, so as to ensure the measurement of the hydrogen concentration. Through the cooperation of the first hydrogen concentration sensor 900, the second hydrogen concentration sensor 910 and the third hydrogen concentration sensor 920, when the hydrogen concentration is detected to exceed the safety range, an alarm signal can be timely input to the hydrogen fuel cell system, so that the system can immediately make corresponding safety protection measures, and the probability of safety accidents is reduced.

Since the marine hydrogen fuel cell system 100 is applied on the sea in some embodiments, and the marine air has high humidity and high salinity, the marine air needs to be filtered to react with the marine hydrogen fuel cell system 100, unlike the marine hydrogen fuel cell system 100.

In order to solve the above problems, the embodiment of the present utility model further provides an improvement, referring to fig. 1 and 3, in that the marine hydrogen fuel cell system 100 further includes a filtering device 700, the filtering device 700 includes a coarse filter 710 and a fine filter 720, and the coarse filter 710, the fine filter 720 and the stack dilution zone 400 are sequentially communicated. The coarse filter 710 is disposed at an outer side of the cabinet 200, and is used for coarse filtering of the external gas and delivering the gas after coarse filtering to the fine filter 720. The fine filter 720 is disposed in the first accommodating chamber 210, and the fine filter 720 is used for fine filtering the gas and delivering the gas after suction filtration to the galvanic pile dilution zone 400. By positioning coarse filter 710 in an open air area outside cabinet 200, the offshore gas outside cabinet 200 is responsible for coarse filtering to form a primary gas and passing it to fine filter 720. The fine filter 720 is disposed inside the cabinet 200, and is responsible for fine filtering the primary gas to form a secondary gas, and transferring it to the galvanic dilution zone 400 for reaction. The combination of the coarse filter 710 and the fine filter 720 can perform secondary filtration on the offshore gas to improve the filtration performance of the filter device 700, and ensure that the marine hydrogen fuel cell system 100 can safely and stably operate, so that the filter device 700 system can still ensure the safe operation requirement of the marine hydrogen fuel cell system 100 under the environment of high humidity and high salt mist concentration at sea.

Specifically, cabinet 200 is further provided with a third air inlet 260 through which coarse filter 710 and fine filter 720 communicate inside and outside cabinet 200. Coarse filter 710 can be selected as a screen as is conventional in the art. Alternatively, in a further embodiment, the coarse filter 710 includes a primary filter (not shown), a middle-efficiency filter (not shown), and a high-efficiency filter (not shown), which are sequentially connected, and air flows in from one side of the primary filter. Through primary filter, well effect filter and high-efficient filter, can carry out multistage filtration to the air, the impurity that the granule is great to the granule is less filters step by step, ensures the filter effect of coarse filter 710 to delay the probability that the filter appears large tracts of land jam, extension clearance cycle. The primary filter can be a primary plate filter, the medium-efficiency filter can be a medium-efficiency bag filter, the high-efficiency filter can be a high-efficiency molecular filter, and the three filters all have the characteristic of salt corrosion resistance so as to ensure the service life of the filter. The primary filter, the medium-efficiency filter and the high-efficiency filter can be respectively provided with a differential pressure meter for monitoring the differential pressure of each filter in real time, so that the performance of each filter is judged and the maintenance period is determined.

The fine filter 720 can be selected as a chemisorbed filter as is conventional in the art. Alternatively, in a further embodiment, the fine filter 720 is selected to be a centrifugal air filter, which includes a first filter layer (not shown) and a second filter layer (not shown), the first filter layer being wrapped around the outside of the second filter layer, the first filter layer being for physical filtration, and the second filter layer being for chemisorption filtration. The first filter layer can be selected as a screen, further filtering the solid particulate matter by physical filtration. The second filter layer can be selected as an active carbon filter core to carry out chemical adsorption to impurity gas, and utilize the centrifugal mode to filter repeatedly on first filter layer and second filter layer, improve the filter effect. It can be understood that the shapes of the first filter layer and the second filter layer are the same as those of the filter element of the centrifugal air filter conventional in the art, and are cylindrical, the first filter layer is wrapped on the outer side of the second filter layer, and when air flows into the fine filter 720, the air is contacted with the first filter layer and then contacted with the second filter layer, and the implementation manner can be realized by controlling the positions and the opening directions of the inflow opening and the outflow opening of the air, which is a conventional means in the art, and is not described in detail herein.

Referring to fig. 1 and 3, according to some embodiments of the present utility model, the hydrogen fuel cell system 100 for a ship further includes an air flow meter 800, an air compressor 810, an intercooler 820, a sealing valve 830, a humidifier 840, a back pressure valve 860, a mixing chamber 870, a third pipe 630 and a fourth pipe 640, the cabinet 200 is further provided with a third air outlet 270, the third air outlet 270 communicates with the first accommodating chamber 210, and the fine filter 720, the air flow meter 800, the air compressor 810, the intercooler 820, the sealing valve 830, the humidifier 840 and the galvanic pile dilution zone 400 communicate sequentially through the third pipe 630 to achieve the treatment of air and the intake of air. The stack dilution zone 400, the humidifier 840, the back pressure valve 860, the mixing chamber 870, and the third air outlet 270 are sequentially communicated through the fourth line 640 to realize exhaust emission after the completion of the reaction of the stack 420.

Specifically, the air flow meter 800 is selected as a mass flow meter for metering the air flow into the air compressor 810. The air compressor 810 is selected as a centrifugal air compressor 810 for driving air from the coarse filter 710 to flow into and be transferred to the galvanic pile dilution zone 400, ensuring the flow rate and pressure of the air. The intercooler 820 is selected as a water-cooled intercooler 820 for reducing the temperature of the air pressurized by the air compressor 810 to ensure that the temperature satisfies the requirement when the air enters the galvanic dilution zone 400. The sealing valve 830 is selected as a sealing valve 830 that is conventional in the art, and is used to close the air flow path after the hydrogen fuel cell system is shut down, prevent air from entering the stack dilution zone 400, reduce the probability of formation of a hydrogen-air interface, and protect the stack 420. The humidifier 840 is selected as a membrane tube humidifier 840 for humidifying air to keep the proton exchange membrane in a water saturated state, thereby ensuring that the stack 420 can maintain high reaction efficiency. The back pressure valve 860 is selected to be a back pressure valve 860 conventional in the art for regulating the air pressure at the inlet of the stack 420. Mixing chamber 870 is a custom made container of carbon steel for uniform mixing of the exhaust gases from stack 420.

The third and fourth pipelines are connected with the humidifier 840 and the stack dilution zone 400, and a temperature-pressure integrated sensor 850 is further provided, and the temperature-pressure integrated sensor 850 includes a temperature sensor and a pressure sensor for monitoring the state of air entering the stack 420 and the state of exhaust gas exiting the stack 420 in real time, so as to monitor the operation state of the hydrogen fuel cell system. A fourth hydrogen concentration sensor 930 may also be provided at a location of the fourth line 640 connecting the mixing chamber 870 and the third air outlet 270 to detect the hydrogen concentration in the exhaust gas discharged from the stack 420 to further detect the operating state of the stack 420.

The embodiment of the utility model also provides a ship (not shown in the figure), which comprises the marine hydrogen fuel cell system 100 in the embodiment, and by applying the marine hydrogen fuel cell system 100 in the embodiment of the utility model, the safety of the hydrogen fuel cell system can be improved, so that the hydrogen fuel cell system meets the ship running specification when being applied, and the safety of the ship in the running process is ensured.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model. Furthermore, embodiments of the utility model and features of the embodiments may be combined with each other without conflict.

Claims (10)

1. A marine hydrogen fuel cell system comprising:

the cabinet is provided with a first accommodating cavity, a first air inlet and a first air outlet, and the first air inlet and the first air outlet are respectively communicated with the first accommodating cavity;

the galvanic pile dilution zone comprises a first box body and a galvanic pile, wherein the first box body is provided with a second accommodating cavity, the galvanic pile is accommodated in the second accommodating cavity, and the first box body is positioned in the first accommodating cavity;

the fuel zone comprises a second box body and a hydrogen subsystem, the second box body is provided with a third accommodating cavity, the hydrogen subsystem is accommodated in the third accommodating cavity, and the second box body is positioned in the first accommodating cavity;

the first fan is communicated with the first air outlet and positioned at the outer side of the cabinet and is used for pumping air from the interior of the cabinet to the outside;

the second accommodating cavity and the third accommodating cavity are communicated with the first air inlet, and the second accommodating cavity and the third accommodating cavity are communicated with the first air outlet.

2. The marine hydrogen fuel cell system according to claim 1, wherein the cabinet is further provided with a second air inlet and a second air outlet, the second air inlet and the second air outlet being respectively communicated with the first accommodation chamber; the marine hydrogen fuel cell system further comprises a second fan which is communicated with the second air outlet and is positioned at the outer side of the cabinet and used for pumping gas from the inner part of the cabinet to the outer part.

3. The marine hydrogen fuel cell system according to claim 1, wherein the first air outlet is communicated with an upper side of the first tank in a gravitational direction, and the first air inlet is communicated with a lower side of the first tank in the gravitational direction; and/or the first air outlet is communicated with the upper side of the second box body in the gravity direction, and the first air inlet is communicated with the lower side of the second box body in the gravity direction.

4. The marine hydrogen fuel cell system of claim 1, further comprising a first pipeline and a second pipeline, wherein the first pipeline and the second pipeline are respectively provided with three connection ends, the three connection ends of the first pipeline are respectively communicated with the first air inlet, the second accommodating cavity and the third accommodating cavity, and the three connection ends of the second pipeline are respectively communicated with the first air outlet, the second accommodating cavity and the third accommodating cavity.

5. The marine hydrogen fuel cell system of claim 1, further comprising a first hydrogen concentration sensor, a second hydrogen concentration sensor, and a third hydrogen concentration sensor, the first hydrogen concentration sensor being disposed on an outer surface of the first tank, the second hydrogen concentration sensor being disposed on an outer surface of the second tank, the third hydrogen concentration sensor being disposed on an inner surface of the cabinet, and the third hydrogen concentration sensor being located on an upper side of the galvanic pile dilution zone in a gravitational direction and an upper side of the fuel zone in the gravitational direction.

6. The marine hydrogen fuel cell system of claim 1, further comprising a filtration device comprising a coarse filter and a fine filter, the coarse filter, the fine filter, and the galvanic pile dilution zone being in communication in sequence; the coarse filter is arranged at the outer side of the cabinet and is used for performing coarse filtration on external gas and transmitting the gas after coarse filtration to the fine filter; the fine filter is arranged in the first accommodating cavity and is used for carrying out fine filtration on gas and conveying the gas after suction filtration to the galvanic pile dilution zone.

7. The marine hydrogen fuel cell system of claim 6, wherein the coarse filter comprises a primary filter, a middle-efficiency filter, and a high-efficiency filter, which are disposed in this order.

8. The marine hydrogen fuel cell system of claim 6, wherein the fine filter is a centrifugal air filter comprising a first filter layer and a second filter layer, the first filter layer being wrapped outside the second filter layer, the first filter layer being for physical filtration, the second filter layer being for chemisorption filtration.

9. The marine hydrogen fuel cell system of claim 6, further comprising an air flow meter, an air compressor, an intercooler, a sealing valve, a humidifier, a back pressure valve, a mixing chamber, a third pipeline, and a fourth pipeline, wherein the cabinet is further provided with a third air outlet, the third air outlet is communicated with the first accommodating chamber, the fine filter, the air flow meter, the air compressor, the intercooler, the sealing valve, the humidifier, and the galvanic pile dilution zone are sequentially communicated through the third pipeline, and the galvanic pile dilution zone, the humidifier, the back pressure valve, the mixing chamber, and the third air outlet are sequentially communicated through the fourth pipeline.

10. Ship, characterized by comprising a marine hydrogen fuel cell system according to any of claims 1 to 9.