Fuel tank inerting device combining with plasmas and photocatalysis technology
A plasma and photocatalysis technology, applied in the field of aviation systems, can solve the problems of environmental pollution, high price, and low efficiency of hollow fiber membrane nitrogen production, and achieve the effects of high removal efficiency, low operating cost, and simple overall structure
Active Publication Date: 2018-10-12
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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[0007] Aiming at the disadvantages of low nitrogen production efficiency, high price and environmental pollution of hollow fiber membranes in the prior art, the present invention provides a fuel tank inerting device combining plasma and photocatalysis technology, which converts fuel vapor and fuel vapor in the upper gas phase space of the fuel tank The air mixture is passed into the reactor containing the plasma module and the photocatalytic module, and the reaction gas is initially decomposed in the plasma module; then under the condition of ultraviolet light irradiation, the hydrocarbon is adsorbed on the surface of the catalyst, and the free electrons or Holes are combined, redox reactions occur, and hydrocarbons are further decomposed into CO 2 、H 2 o
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[0030] The present invention will be further described below in conjunction with embodiment. The following descriptions 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.
[0031] Such as figure 1 As shown, the present invention discloses a fuel tank inerting device combining plasma and photocatalysis technology, which is characterized in that it includes a fuel tank 1, a first flame arrester 2, a first fan 3, a filter 4, a dryer 5, a reaction device 6, second fan 7, cooler 8, water separator 9, temperature sensor 10, first electric regulating valve 11, check valve 12, second flame arrester 13, oxygen concentration sensor 14, third fan 15, the first Two electric regulating valves 16, a third electric regulating valve 17 and an automatic controller 18;
[0032] ...
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The invention discloses a fuel tank inerting device combining with plasmas and a photocatalysis technology. Gas-phase space fuel vapor on the upper portion of a fuel tank and an air mixture are introduced into a reactor including a plasma module and a photocatalysis module, and reaction gas is primarily decomposed in the plasma module firstly; and then under the condition of ultraviolet irradiation, a hydrocarbon is adsorbed on the surface of a catalyst to be combined with free electrons or a hole to generate a redox reaction, and the hydrocarbon is further decomposed into CO2 and H2O. After the gas subjected to reaction is dried, the gas rich in nitrogen and the CO2 flows into the fuel tank to be subjected to inerting, and the purpose of fire and explosion prevention of the fuel tank is achieved. The fuel tank inerting device has the advantages of being low in operating cost, simple in overall structure, high in removal efficiency, capable of being operated under the normal conditionand the like.
Description
technical field [0001] The invention belongs to the technical field of aviation systems, and relates to an aircraft fuel tank inerting system, in particular to a fuel tank inerting device combining plasma and photocatalysis technologies. Background technique [0002] The safety of modern aircraft has been widely concerned by the society, and fuel system combustion and explosion are one of the main causes of aircraft crashes. Statistics show that during the Vietnam War, the U.S. Air Force lost thousands of aircraft due to ground fire attacks, among which the proportion of aircraft crashes and fatalities due to the fire and explosion of aircraft fuel tanks was as high as 50%. According to the cabin safety research technical group (GSRTG) statistics of 3,726 civil aircraft accidents worldwide from 1966 to 2009, a total of 370 accidents were related to fuel tank combustion explosions. It can be seen that effective measures must be taken to prevent aircraft fuel tanks from deton...
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IPC IPC(8): B64D37/32B64D37/34
CPCB64D37/32B64D37/34
Inventor 彭孝天冯诗愚李超越叶佳林刘卫华
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS