CN217641417U - Ship hydrogen fuel cell power system - Google Patents
Ship hydrogen fuel cell power system Download PDFInfo
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- CN217641417U CN217641417U CN202220923467.3U CN202220923467U CN217641417U CN 217641417 U CN217641417 U CN 217641417U CN 202220923467 U CN202220923467 U CN 202220923467U CN 217641417 U CN217641417 U CN 217641417U
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- hydrogen fuel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
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Abstract
The utility model provides a boats and ships hydrogen fuel cell power system, include: a hydrogen fuel cell stack for converting chemical energy in hydrogen fuel into electrical energy; an electrical output system for supplying electricity generated by the hydrogen fuel cell stack to various devices on the vessel; a hydrogen supply system for supplying hydrogen to the hydrogen fuel cell stack; an oxygen supply system for supplying oxygen to the hydrogen fuel cell stack; the hydrogen circulation system is used for recycling and reusing hydrogen which is not completely consumed by the hydrogen fuel cell stack and sending the hydrogen into the hydrogen fuel cell stack again to participate in chemical reaction; and the oxygen circulating system is used for recovering and recycling oxygen which is not completely consumed by the hydrogen fuel cell stack, and sending the oxygen into the hydrogen fuel cell stack again to participate in chemical reaction. The utility model discloses can realize carrying out cyclic utilization to the recovery of the complete gas of not reacting, utilize the heat that the reaction produced simultaneously to get into the reactant gas before the hydrogen fuel cell pile to heat the humidification, make its subsequent chemical reaction more abundant.
Description
Technical Field
The utility model belongs to the technical field of boats and ships power, concretely relates to boats and ships hydrogen fuel cell power system.
Background
At present, the power source of ships is mainly diesel engines, gas turbines and the like, and the ships can provide power and simultaneously emit a large amount of atmospheric pollutants such as sulfur oxides, carbon dioxide, nitrogen oxides, particulate matters and the like, thereby causing serious pollution to the environment and the atmosphere.
Hydrogen is favored due to its outstanding advantages of high efficiency, cleanness, highest heat value and the like, and becomes one of key technologies for solving the problems of global energy shortage and environmental pollution. Meanwhile, the hydrogen fuel cell directly converts chemical energy of fuel into electric energy without combustion, so that the energy conversion efficiency is high. The product of the fuel cell is water, very low pollutant emissions. And no moving parts are arranged in the fuel cell, so that the fuel cell is quite quiet and free of mechanical abrasion during operation, low in noise and low in vibration. The hydrogen fuel cell is the only power device which has the advantages of no pollution, high efficiency, wide application, no noise, continuous work and modularization, can completely meet the requirement of the ship on new power, and has wide application prospect in the ship.
However, in the process of hydrogen fuel at present, the problems that hydrogen and oxygen of chemical agents are not fully reacted in a hydrogen cell stack, and are directly discharged after reaction and cannot be recycled, so that a large amount of waste is caused, risks are generated due to accumulation of the waste, and the like still exist.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the present application provides a hydrogen fuel cell power system for a ship, including:
a hydrogen fuel cell stack for converting chemical energy in hydrogen fuel into electrical energy;
an electrical output system for supplying electricity generated by the hydrogen fuel cell stack to various devices on the vessel;
a hydrogen supply system for supplying hydrogen to the hydrogen fuel cell stack;
an oxygen supply system for supplying oxygen to the hydrogen fuel cell stack;
the hydrogen circulation system is used for recycling and reusing hydrogen which is not completely consumed by the hydrogen fuel cell stack and sending the hydrogen into the hydrogen fuel cell stack again to participate in chemical reaction;
and the oxygen circulating system is used for recovering and recycling oxygen which is not completely consumed by the hydrogen fuel cell stack, and sending the oxygen into the hydrogen fuel cell stack again to participate in chemical reaction.
Further, the hydrogen supply system comprises:
a hydrogen storage tank for storing high pressure hydrogen;
the hydrogen pressure reducing valve is used for stabilizing the released high-purity high-pressure hydrogen at a certain pressure;
and the first gas flowmeter is used for enabling the decompressed hydrogen to enter the hydrogen fuel cell stack at a certain flow rate.
Further, the oxygen supply system comprises:
an oxygen source for providing a source of oxygen;
an oxygen filter for filtering dust that may be present in the oxygen source;
a blower for sucking and pressurizing the filtered oxygen;
and the second gas flow meter is used for enabling the pressurized oxygen to enter the hydrogen fuel cell stack at a certain flow rate.
Further, the oxygen source may be an oxygen storage tank, or may be directly connected to air.
Further, the electrical output system includes:
a DC/DC converter for boosting the voltage generated by the hydrogen fuel cell stack to match the voltage of the ship load;
and the direct-current busbar distribution board is used for supplying power to shipboard equipment.
Further, the hydrogen circulation system comprises the following components which are connected in sequence through pipelines:
a hydrogen filter for filtering impurities in the hydrogen gas recovered from the hydrogen fuel cell stack;
the hydrogen dehumidifier is used for removing moisture in the filtered recovered hydrogen;
and the hydrogen pressurization valve is used for pressurizing the filtered and dehumidified recovered hydrogen and then discharging the hydrogen into the hydrogen storage tank.
Further, the oxygen circulation system comprises a pipeline which is connected in sequence:
an oxygen filter for filtering impurities in the oxygen recovered from the hydrogen fuel cell stack;
and the oxygen dehumidifier is used for removing moisture in the filtered recovered oxygen.
The gas humidification system comprises a hydrogen humidifier and an oxygen humidifier, the hydrogen humidifier is arranged between the first gas flow meter and the hydrogen fuel cell, and the oxygen humidifier is arranged between the blower and the second gas flow;
the hydrogen humidifier and the oxygen humidifier both comprise a sealed water container, a heater is arranged in the water container, and a gas inlet and a gas outlet are formed in the water container.
Further, still include water circulative cooling system, water circulative cooling system includes that it connects gradually through circulating line:
the cooling water exchanger is used for carrying out heat exchange on cooling water in the pipeline;
the cooling water filter is used for ensuring that the cooling water in the circulating pipeline has no impurities;
the circulating water pump is used for driving cooling water to flow in the circulating pipeline;
the water circulation cooling system is communicated with the hydrogen fuel cell stack, the hydrogen humidifier and the oxygen humidifier.
Further, still include monitored control system, monitored control system includes:
the first pressure sensor is arranged between the first flow meter and the hydrogen humidifier and used for monitoring the pressure of the hydrogen entering the hydrogen fuel cell stack;
and the second pressure sensor is arranged on the second flowmeter and the hydrogen fuel cell stack and used for monitoring the pressure of oxygen entering the hydrogen fuel cell stack.
The utility model provides a boats and ships hydrogen fuel cell power system compares with prior art, and its beneficial effect lies in:
the utility model discloses can realize carrying out cyclic utilization to the recovery of the complete gas of not reacting, utilize the heat that the reaction produced simultaneously to get into the reactant gas before the hydrogen fuel cell pile and heat the humidification, make its subsequent chemical reaction more abundant, improve hydrogen fuel cell power system's output efficiency on the whole.
Drawings
FIG. 1 is a schematic view of the present invention,
FIG. 2 is a schematic view of the oxygen supply and circulation system of the present invention,
FIG. 3 is a schematic view of the hydrogen supply and circulation system of the present invention,
FIG. 4 is a water circulation cooling system of the present invention;
fig. 5 is a schematic structural diagram of the hydrogen-side electrically heated humidifier of the present invention.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1, the composition and the operating principle of the marine hydrogen fuel cell power system provided by the present application are as follows:
the monitoring system a controls the hydrogen supply system c and the oxygen supply system d to provide certain amounts of gases (i.e., fuel and oxidant) according to requirements; hydrogen and oxygen are respectively delivered to a gas humidifying system f through a hydrogen supply system c and an oxygen supply system d, and the humidified reaction gas is delivered to a hydrogen fuel cell stack h for electrochemical reaction; the excessive hydrogen and oxygen are recycled through a hydrogen circulation system b and an oxygen circulation system e, the heat released in the reaction process and the generated water vapor are cooled and recycled through a water circulation cooling system g, the temperature of the hydrogen fuel cell stack h is controlled, meanwhile, cooling water is provided for a gas humidification system f, and a closed loop is formed when the whole fuel cell power system works; and finally, the DC/DC converter i boosts the voltage generated by the hydrogen fuel cell stack h and then transmits the boosted voltage to the direct-current busbar power distribution board j to supply power to each device on the ship.
FIG. 2 is an oxygen supply and circulation system of the present application
The oxygen supply subsystem comprises an air filter, a blower, an electrically heated humidifier and a temperature and pressure sensor, wherein the oxygen filter filters dust possibly existing in the air (the oxygen source can also be an oxygen storage tank, and the oxygen source is air in the embodiment); the purified fresh air is sucked and pressurized by the blower, then the fresh air enters the electric heating humidifier, and the humidified oxygen directly enters the fuel cell. The corresponding valve is arranged at the outlet, the oxygen is discharged outwards once every a period of time, and the discharged oxygen enters the oxygen storage tank after being filtered and dehumidified, so that the oxygen is recycled.
FIG. 3 shows a hydrogen supply and circulation system of the present application
The high-purity high-pressure hydrogen released from the hydrogen storage tank is stabilized at a certain pressure by a pressure reducing valve. Then, the hydrogen enters a hydrogen humidifier at the hydrogen side after the flow of the hydrogen is stabilized through a ball valve and a flow meter, and the hydrogen is humidified by deionized water to reach the saturation humidity. The ball valve is arranged at the inlet of the fuel cell stack, the corresponding valve is arranged at the outlet of the fuel cell stack to improve the utilization rate of hydrogen, the valve is discharged outwards once every a period of time, and the discharged hydrogen passes through the hydrogen filter and the hydrogen dehumidifier and then enters the hydrogen storage tank to complete hydrogen recycling after being pressurized by the pressurization valve.
FIG. 4 shows a water-circulating cooling system of the present application
The system utilizes cooling water circulation to ensure the heat balance of the galvanic pile: the water pump sends deionized cooling water into the fuel cell stack, and after the waste heat of the fuel cell stack is taken away, the cooling water enters the water tank and exchanges heat with the plate heat exchanger. After that, the deionized water is returned to the water pump, and the pressurization is continued to circulate.
FIG. 5 is a hydrogen side electrically heated humidifier
Taking a hydrogen side electric heating humidifier as an example, hydrogen and oxygen are directly introduced into a water container with adjustable temperature and humidity, after saturated bubbles are generated, water vapor enters a galvanic pile along with the hydrogen, and the purposes of heating and humidifying the hydrogen and the oxygen are achieved. The humidified oxygen and hydrogen are subjected to more sufficient chemical reaction in the hydrogen fuel cell stack, so that more electric energy can be released.
In summary, the preferred embodiments of the present invention are only examples, and the scope of the present invention is not limited thereto, and all equivalent changes and modifications made in accordance with the scope of the present invention and the contents of the specification are within the scope covered by the present invention.
Claims (10)
1. A marine hydrogen fuel cell power system, comprising:
a hydrogen fuel cell stack for converting chemical energy in hydrogen fuel into electrical energy;
an electrical output system for supplying electricity generated by the hydrogen fuel cell stack to various devices on the vessel;
a hydrogen supply system for supplying hydrogen to the hydrogen fuel cell stack;
an oxygen supply system for supplying oxygen to the hydrogen fuel cell stack;
the hydrogen circulation system is used for recycling and reusing hydrogen which is not completely consumed by the hydrogen fuel cell stack and sending the hydrogen into the hydrogen fuel cell stack again to participate in chemical reaction;
and the oxygen circulating system is used for recovering and recycling oxygen which is not completely consumed by the hydrogen fuel cell stack, and sending the oxygen into the hydrogen fuel cell stack again to participate in chemical reaction.
2. The marine hydrogen fuel cell power system according to claim 1, wherein the hydrogen gas supply system comprises, connected in series by a pipeline:
a hydrogen storage tank for storing high pressure hydrogen;
the hydrogen pressure reducing valve is used for stabilizing the released high-purity high-pressure hydrogen at a certain pressure;
and the first gas flowmeter is used for enabling the decompressed hydrogen to enter the hydrogen fuel cell stack at a certain flow rate.
3. The marine hydrogen fuel cell power system according to claim 2, wherein the oxygen supply system comprises, connected in series by a pipeline:
an oxygen source for providing a source of oxygen;
an oxygen filter for filtering dust that may be present in the oxygen source;
a blower for sucking and pressurizing the filtered oxygen;
and the second gas flow meter is used for enabling the pressurized oxygen to enter the hydrogen fuel cell stack at a certain flow rate.
4. A marine hydrogen fuel cell power system according to claim 3, characterized in that: the oxygen source can be an oxygen storage tank or can be directly connected with air.
5. The marine hydrogen fuel cell power system of claim 1, wherein the electrical output system comprises:
a DC/DC converter for boosting the voltage generated by the hydrogen fuel cell stack to match the voltage of the ship load;
and the direct-current busbar distribution board is used for supplying power to shipboard equipment.
6. The marine hydrogen fuel cell power system according to claim 4, wherein the hydrogen circulation system comprises, connected in sequence by a pipeline:
a hydrogen filter for filtering impurities in the hydrogen gas recovered from the hydrogen fuel cell stack;
the hydrogen dehumidifier is used for removing moisture in the filtered recovered hydrogen;
and the hydrogen pressurization valve is used for pressurizing the filtered and dehumidified recovered hydrogen and then discharging the hydrogen into the hydrogen storage tank.
7. The marine hydrogen fuel cell power system according to claim 1, wherein said oxygen circulation system comprises, connected in series by a pipeline:
an oxygen filter for filtering impurities in the oxygen recovered from the hydrogen fuel cell stack;
and the oxygen dehumidifier is used for removing moisture in the filtered recovered oxygen.
8. A marine hydrogen fuel cell power system according to claim 3, characterized in that: the gas humidification system comprises a hydrogen humidifier and an oxygen humidifier, the hydrogen humidifier is arranged between the first gas flow meter and the hydrogen fuel cell, and the oxygen humidifier is arranged between the blower and the second gas flow meter;
the hydrogen humidifier and the oxygen humidifier both comprise a sealed water container, a heater is arranged in the water container, and a gas inlet and a gas outlet are formed in the water container.
9. The marine hydrogen fuel cell power system according to claim 8, further comprising a water circulation cooling system, wherein the water circulation cooling system comprises, connected in sequence by a circulation pipeline:
the cooling water exchanger is used for carrying out heat exchange on cooling water in the pipeline;
the cooling water filter is used for ensuring that the cooling water in the circulating pipeline has no impurities;
the circulating water pump is used for driving cooling water to flow in the circulating pipeline;
the water circulation cooling system is communicated with the hydrogen fuel cell stack, the hydrogen humidifier and the oxygen humidifier.
10. The marine hydrogen fuel cell power system of claim 8, further comprising a monitoring system, the monitoring system comprising:
the first pressure sensor is arranged between the first gas flowmeter and the hydrogen humidifier and used for monitoring the pressure of the hydrogen entering the hydrogen fuel cell stack;
and the second pressure sensor is arranged on the second gas flowmeter and the hydrogen fuel cell stack and used for monitoring the pressure of oxygen entering the hydrogen fuel cell stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220923467.3U CN217641417U (en) | 2022-04-20 | 2022-04-20 | Ship hydrogen fuel cell power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220923467.3U CN217641417U (en) | 2022-04-20 | 2022-04-20 | Ship hydrogen fuel cell power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217641417U true CN217641417U (en) | 2022-10-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220923467.3U Active CN217641417U (en) | 2022-04-20 | 2022-04-20 | Ship hydrogen fuel cell power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217641417U (en) |
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2022
- 2022-04-20 CN CN202220923467.3U patent/CN217641417U/en active Active
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