Heat pipe ultrasonic combined anti-icing and de-icing device and method using waste heat of aircraft engine

Abstract

The invention provides a heat pipe and ultrasonic wave combined ice preventing and removing device and method utilizing waste heat of an aircraft engine. The device comprises a heat pipe ice-preventing system, an ultrasonic oscillation ice removing system, a program control system, an atmospheric temperature sensor and an icing strength annunciator. The heat pipe ice-preventing system comprises a communicating pipe installed at the tail portion of the engine to absorb exhaust waste heat and a heat pipe bank bundle with an evaporation section connected with the communicating pipe. The ultrasonic oscillation ice removing system comprises an ultrasonic generator and an ultrasonic transducer unit connected with the output end of the ultrasonic generator through a connecting cable. The program control system automatically controls on and off between the heat pipe bank bundle and the communicating pipe and starting or stopping of the ultrasonic generator according to a temperature signal and an icing strength signal. By means of the synergistic effect of heat pipes and ultrasonic waves, preventing and removing can be combined, compared with a method for removing ice simply through ultrasonic waves, the icing phenomenon of wings is greatly reduced, the flying stability of an aircraft is ensured, and a system is safe and reliable.

Description

technical field [0001] The invention relates to an anti-icing device, in particular to a heat pipe ultrasonic combined anti-icing and de-icing device and method utilizing waste heat of an aircraft engine, and belongs to the technical field of aircraft anti-icing and de-icing. Background technique [0002] Icing is one of the main causes of aircraft flight accidents. According to statistics, about 9% of aircraft accidents are caused by icing, especially the icing on the leading edge of aircraft wings and tails, which will lead to increased airfoil drag and lift. The descent, the decrease of the critical angle of attack, and the deterioration of the maneuverability and stability will lead to the loss of control of the aircraft maneuverability during takeoff and landing, and will eventually cause serious flight accidents. [0003] In view of the problem of anti-icing and deicing of wings and tails during flight, hot air anti-icing technology is widely used at present, that is, ...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the shortcomings of the hot gas anti-icing technology used in the flight process of the existing aircraft, such as long deicing time and large energy consumption, the present invention proposes a heat pipe ultrasonic combined anti-icing and deicing device and method using the waste heat of the aircraft engine. The combined anti-icing and deicing On the basis of ultrasonic deicing technology, the ice device is equipped with a heat pipe anti-icing system, which can effectively prevent the leading edge and surface of the wing from icing in real time during flight; At the same time, it provides favorable conditions for deicing the heat pipe, reduces the time for the heat pipe to melt ice, and greatly reduces energy consumption

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