Fuel washing device for aircraft refueling vehicle

Abstract

The invention relates to a fuel washing device for an aircraft refueling vehicle, which comprises a nitrogen-rich gas generating device, a fuel circulating pump, a gas and fuel mixing device and a fuel tank of the refueling vehicle. A nitrogen-rich gas outlet of the nitrogen-rich gas generating device is connected with a gas inlet of the gas and fuel mixing device through a gas delivering pipe. The gas delivering pipe between the nitrogen-rich gas outlet of the nitrogen-rich gas generating device and the gas inlet of the gas and fuel mixing device is connected with a washing check valve. The fuel circulating pump is connected with a fuel inlet hole of the gas and fuel mixing device through a fuel conveying pipe, and an outlet hole of the gas and fuel mixing device is connected with the fuel tank of the refueling vehicle. A gas exhaust opening of the fuel tank of the refueling vehicle is connected with a washing gas exhaust valve. When the device is used for performing fuel washing on the fuel tank of the refueling vehicle in fuel delivery, the device effectively overcomes the technical defects of the airborne nitrogen generating system, has no need of taking the weight and volume of the equipment into consideration, and can use large separating film area and high separating pressure to obtain nitrogen-rich gas with large flow quantity and high purity for washing.

Description

technical field [0001] The invention belongs to the technical field of fire protection and explosion protection, and relates to an aircraft fuel washing device, in particular to a fuel washing device for an aircraft refueling vehicle. Background technique [0002] With the improvement of the flight speed and performance of aircraft, the increase of aerodynamic heating and heat load of electronic equipment brought about by it makes modern military aircraft generally tend to adopt fuel integrated thermal management technology. Simply put, fuel oil is used as a heat sink. For military aircraft, according to statistics, even if fuel oil is not used as a heat sink, the fire or explosion of its fuel system has become one of the main causes of its crash. And when the comprehensive fuel thermal management technology is adopted, it will further increase the temperature of the aircraft fuel tank, that is to say, it will also increase the probability of the aircraft fuel tank catching...

AI Technical Summary

Problems solved by technology

[0010] For some aircraft, such as fighter jets, when performing many tasks, from refueling, warming up, taxiing, climbing, until the beginning of combat missions, its time is extremely limited. In order to make the fuel wash to a suitable oxygen content, It is necessary to increase the amount of scrubbing gas, which will obviously further increase the size and weight of the equipment, which is very detrimental to the flight of the aircraft

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