Heat exchange enhancement device and method for aircraft fuel oil
A technology for strengthening heat exchange and aircraft. It is applied to the fuel tank of the power unit and adjusting the fuel. It can solve the problems of poor local heat exchange, cannot prevent fuel freezing, and is uneconomical, and can prevent the temperature from being too high or too low. Effect
Active Publication Date: 2015-11-25
COMAC +1
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Problems solved by technology
The disadvantages of this technology are: the use of outside air to cool the fuel tank will cause additional aircraft resistance; it has no effect on the freezing of aircraft fuel, and cannot prevent or reduce the situation of fuel freezing; the heat exchange at the bottom of the entire fuel tank is aimed at Not strong, local heat transfer effect is poor
[0005] For some fuel tanks with prominent local overcooling or overheating, it is not economical to adopt the above-mentioned comprehensive heat dissipation method
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[0021] In the following detailed description of the preferred embodiment, reference is made to the accompanying drawings which form a part hereof. The accompanying drawings show, by way of example, specific embodiments in which the invention can be practiced. The illustrated embodiments are not intended to be exhaustive of all embodiments in accordance with the invention. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention.
[0022] Such as figure 1 As described in, in a preferred embodiment, the enhanced heat exchange device for aircraft fuel according to the present invention includes an aircraft fuel tank 1 for containing fuel and a heat exchanger 3 . The inside of the aircraft fuel tank 1 has a heating area or an area 2 that is prone to freezing, such as the fuel pump and the oil suction port of the fuel pump, etc., and the heat exchanger 3 is arranged outsid...
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The invention provides a heat exchange enhancement device for aircraft fuel oil. The heat exchange enhancement device comprises an aircraft fuel oil tank used for containing the fuel oil, and a heat exchanger arranged outside a heating area or an area likely to be frozen of the aircraft fuel oil tank, wherein the heating area or the area likely to be frozen is arranged in the aircraft fuel oil tank. The invention further provides a heat exchange enhancement method for the aircraft fuel oil. When the temperature of the fuel oil is too high, heat of the fuel oil is transmitted to heat exchange airflow or an aircraft skin through the heat exchanger, and when the temperature of the fuel is too low, the heat of the heat exchange airflow or the aircraft skin is transmitted to the fuel oil through the heat exchanger.
Description
technical field [0001] The invention relates to an enhanced heat exchange device for aircraft fuel and an enhanced heat exchange method thereof. Background technique [0002] The fuel tank of the aircraft stores fuel. When the temperature of the fuel or the fuel tank is too high, it is easy to cause a fire or explosion. Lowering the temperature of the fuel or the fuel tank can protect the safety of the fuel tank. When the fuel temperature is too low, it is easy to cause fuel to freeze, which may lead to blockage of the fuel pipeline, resulting in a drop in fuel supply to the engine and affecting flight safety. Heating the area that is prone to icing can melt the ice in the fuel, preventing or reducing Fuel freezing conditions. [0003] US patent application US20100786474 discloses a method and device for cooling fuel in an aircraft fuel tank, which introduces external air as a cooling air flow, and passes it into the outer surface of the aircraft fuel tank for cooling. The...
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IPC IPC(8): B64D37/06B64D37/34
Inventor 薛勇张斌岳鹏秦伟卞刚周宇穗
Owner COMAC