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Aircraft fuel tank inerting device based on biological deoxygenation

A technology for aircraft fuel tanks and chemical devices, which is applied to biochemical cleaning devices, enzymology/microbiology devices, biochemical equipment and methods, etc., can solve problems such as inability to actively prevent fires, and achieve simple structure and no fuel compensation loss. Effect

Pending Publication Date: 2020-06-12
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main disadvantage of passive explosion suppression measures is that it can only be suppressed after a fire occurs in the fuel tank, but cannot actively prevent the occurrence of fire

Method used

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  • Aircraft fuel tank inerting device based on biological deoxygenation
  • Aircraft fuel tank inerting device based on biological deoxygenation

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, technical scheme of the present invention is described in further detail:

[0027] This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. In the drawings, components are exaggerated for clarity.

[0028] Such as figure 1 as shown, figure 1 It is an aircraft fuel tank inerting device based on biological oxygen removal. This embodiment provides an aircraft fuel tank inerting device based on biological deoxygenation, including a fuel tank 1, a first electric regulating valve 2, a fan 3, an oil separator 4, a gas heater 5, a biological deaerator 6, and a temperature sensor 7. Filter 8, dryer 9, second electric regulating valve 10, oxygen concentration sensor 11, microbial nutrien...

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Abstract

The invention discloses an aircraft fuel tank inerting device based on biological deoxygenation. The aircraft fuel tank inerting device comprises a biological deoxygenation inerting subsystem, a microbial nutrient solution supply subsystem and a measurement and control subsystem. According to the invention, yeast and other microorganisms are applied to the airborne inerting system to consume oxygen so as to reduce the oxygen content in the oil tank; and meanwhile, a large amount of carbon dioxide can be generated in the microorganism growth and metabolism process, a steam mixture on the upperportion of the oil tank passes through a fan, the temperature is adjusted, then the steam mixture is introduced into a biological deaerator, and the treated gas is filtered and dried and then introduced into the upper portion of the oil tank to flush the oil tank to achieve the inerting purpose; and the temperature of the biological deaerator is controlled in an environment most suitable for rapidgrowth and propagation of microorganisms such as yeast and the like, and a microorganism nutrient solution is supplied through a liquid supply pump, so that the microorganisms can consume organic matters to rapidly remove oxygen. The device controls the system to work through the oxygen concentration sensor and the temperature sensor, and has the advantages of no aircraft fuel compensation loss,simple structure, no environmental pollution and the like.

Description

technical field [0001] The invention relates to the technical field of fire prevention and explosion protection, in particular to an aircraft fuel tank inerting device based on biological deoxygenation. Background technique [0002] The fire and explosion protection capability of aircraft fuel tanks is not only related to the survivability and vulnerability of the aircraft, but also related to the utilization rate, cost and safety of the passengers of the aircraft. Over the years, after a large number of experimental studies and the practical application of various fire and explosion-proof technical measures, the results show that it is a feasible and effective solution to inert the aircraft fuel tank by using the on-board nitrogen generating system. The use of nitrogen-enriched gas to inert aircraft fuel tanks to increase the safety of fuel tanks has become a requirement of the latest FAA airworthiness regulations (Article 25-981). [0003] There are many ways to prevent a...

Claims

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Application Information

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IPC IPC(8): B64D37/32C12M1/38C12M1/12C12M1/107C12M1/00
CPCB64D37/32C12M21/04C12M23/02C12M29/04C12M41/12C12M41/34
Inventor 陈晨冯诗愚江荣杰周利彪刘卫华
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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