Refrigerating system for reducing flammability of airplane fuel tank and manufacturing method of refrigerating system for reducing flammability of airplane fuel tank
A refrigeration system and fuel tank technology, which is applied in the direction of refrigerators, refrigeration and liquefaction, fuel tank safety measures, etc., can solve the problems of not being able to meet the flammability requirements, reduce the flammability of fuel in the fuel tank, etc., and improve the practicality and operation convenience , low equipment cost, simple operation
Inactive Publication Date: 2014-06-25
COMAC +1
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However, according to the requirements of the latest article, the flammability of the ground or take-off / climb stage should be less than 3%. Designed aircraft, no model adopts this method to reduce the flammability of fuel in the fuel tank
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[0028] Below, refer to figure 1 , the refrigeration system for reducing the flammability of aircraft fuel tanks of the present invention is described, wherein, figure 1 is a schematic diagram showing the refrigeration system described above.
[0029] like figure 1 As shown, in the refrigerant pipeline of the refrigerant for cooling the aviation fuel tank of the aircraft, a compressor 200, a condenser 300, a liquid storage tank 400, a throttle valve 500 and Evaporator 100.
[0030] The compressor 200 and the condenser 300 are connected through a high-pressure pipeline P1, the condenser 300 and the liquid storage tank 400 are connected through a medium-pressure pipeline P2, the throttle valve 500 and the evaporator 100 and the evaporator 100 and the compressor The machines 200 are connected through low-pressure pipelines P3 and P4.
[0031] The above-mentioned evaporator 100 is arranged in the aircraft fuel tank (ie figure 1 In the area enclosed by the symbol 10 in). The a...
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The invention relates to a refrigerating system for reducing the flammability of an airplane fuel tank and a manufacturing method of the refrigerating system for reducing the flammability of the airplane fuel tank. The flammability of the civil airplane fuel tank can be reduced by controllably reducing the fuel temperature. In a refrigerating fluid passage, the refrigerating system is sequentially connected with a compressor, a condenser, a fluid storage pot, a throttle valve and an evaporator in the flowing direction of refrigerating fluid, the compressor is connected with the condenser through a first pipe, the condenser is connected with the fluid storage pot through a second pipe, the throttle valve is connected with the evaporator through a third pipe, the evaporator is connected with the compressor through a third pipe and located inside the airplane fuel tank, the compressor, the condenser, the fluid storage pot and the throttle valve are located outside the airplane fuel tank, an oil temperature sensor, a pressure sensor and a fuel diffuser are further arranged inside the airplane fuel tank, the oil temperature sensor is used for monitoring the temperature of fuel inside the airplane fuel tank, the pressure sensor is used for monitoring the real-time fuel pressure, and the fuel diffuser is used for enabling the fuel to conduct continuous convection to enable the temperature of the fuel to be even.
Description
technical field [0001] The invention relates to a refrigeration system and a refrigeration method for reducing the flammability of an aircraft fuel tank, more specifically, to a refrigeration system and a refrigeration method for reducing the flammability of a civil aircraft fuel tank. Background technique [0002] As the storage unit of aviation fuel, the aircraft fuel tank is an important part of the aircraft body. For civil aircraft, according to the airworthiness requirements, the design of the aircraft fuel tank must meet the explosion-proof function of the fuel tank, that is, it must meet the provisions of Article 25.981 of the airworthiness clause. Therefore, whether it is from a functional point of view or a safety point of view, it is of vital importance and significance to ensure the safety of aircraft fuel tanks. [0003] For newly designed civil aircraft, foreign countries generally meet the latest requirements in three ways, that is, installing an on-board iner...
Claims
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IPC IPC(8): B64D37/32F25B1/00
Inventor 张斌卞刚宋志强郭军亮薛勇周宇穗常红
Owner COMAC