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Membrane nitrogen production and fuel cell coupled fuel tank inerting system and use method

A fuel cell and fuel tank technology, applied in the field of aviation systems, can solve problems such as reducing engine efficiency, and achieve the effects of reducing harmful exhaust emissions, high power generation efficiency, and high product utilization

Inactive Publication Date: 2021-03-05
JINLING INST OF TECH
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  • Application Information

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Problems solved by technology

However, the membrane inerting system needs to provide high-pressure engine bleed air, which will reduce engine efficiency to a certain extent

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  • Membrane nitrogen production and fuel cell coupled fuel tank inerting system and use method

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Embodiment Construction

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0024] like figure 1As shown, the present invention provides a fuel tank inerting system coupled with membrane nitrogen production and fuel cells, including engine bleed air, air, a first compressor 1, a first control valve 2, a hydrogen bottle 3, and a second control valve 4. First mixing valve 5, fuel cell 6, first heat exchanger 7, water separator 8, water processor 9, water storage tank 10, third control valve 11, fourth control valve 12, fifth control valve 13...

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Abstract

The invention provides a membrane nitrogen production and fuel cell coupled fuel tank inerting system, which is used for inerting a fuel tank by taking low-oxygen-content air generated by the system as inert gas besides providing electric energy for an airplane after the system is loaded on the airplane, so that the fuel tank is in a non-combustible state, the generated heat can be used for heating air and water or preheating fuel, the generated water can be used for domestic water or coolant and the like after being treated, and when inert gas generated by the fuel cell is insufficient to inert the fuel tank, the membrane inerting system is started to ensure that the fuel tank is always in a non-combustible state. According to the invention, the airborne power generation efficiency can beeffectively improved, the product of the fuel cell is fully utilized, the resource utilization rate is high, the engine air entraining amount of the membrane inerting system is reduced, the compensation loss is reduced, and the membrane nitrogen production and fuel cell coupled fuel tank inerting system is suitable for occasions with insufficient air entraining or low air entraining pressure.

Description

technical field [0001] The invention belongs to the technical field of aviation systems, and relates to the coupling of a fuel cell and an aircraft fuel tank inerting system, in particular to a fuel tank inerting system coupled with membrane nitrogen production and a fuel cell. Background technique [0002] A fuel cell system is an electrochemical device that directly converts chemical energy present in fuels and oxidants into electrical energy. As a new type of chemical power source, fuel cell is the fourth power generation method after thermal power, hydropower and nuclear power. It has the advantages of high energy conversion efficiency, low emission of harmful gas SOx, NOx and noise, wide application range and fast load response. The basic principle is: the fuel gas (hydrogen, methane, etc.) undergoes an oxidation reaction under the action of the anode catalyst to generate cations and give free electrons; the oxide (usually oxygen) undergoes a reduction reaction under t...

Claims

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Application Information

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IPC IPC(8): B64D37/32B64D37/00B64D13/00H02J7/00
CPCB64D13/00B64D37/00B64D37/32H02J7/00Y02T90/40
Inventor 李超越徐雷
Owner JINLING INST OF TECH
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