Mechanical deicing device and deicing method for electric heating segmentation area

Abstract

The invention is suitable for the technical field of deicing, and provides a mechanical deicing device and deicing method for an electric heating segmentation area, and the deicing device comprises: a plurality of electric heating elements which are arranged in an array mode; and vibration elements, wherein the positions of the vibration elements and the positions of the electric heating elements are arranged in a one-to-one correspondence mode. The plurality of electric heating elements and the plurality of vibration elements are distributed on a first surface and a second surface of the airfoil model, the first surface and the second surface form a front edge area of the airfoil model, and the first surface and the second surface are separated by a front edge line; and the upper surfaces of the first surface and the second surface are provided with skins, the electric heating elements are embedded into the skins, and the vibration elements are installed on the inner surfaces of the skins. The whole ice block is divided into small ice blocks, then vibration deicing is carried out on each small ice block, the deicing efficiency is high, no residual ice appears, and the deicing effect is good.

Description

technical field [0001] The invention relates to the field of deicing, in particular to an electrothermally divided area mechanical deicing device and a deicing method. Background technique [0002] When the aircraft is flying under icing weather conditions, when the outer parts of the fuselage collide with supercooled water droplets, the surface will freeze rapidly, and the ice will accumulate to form an ice layer similar to the outline of the parts. The excellent aerodynamic shape is destroyed, resulting in a decline in the flight performance of the aircraft, and in severe cases, it will cause a flight safety accident. In order to avoid the hazards caused by icing, effective protective measures must be taken in areas prone to icing on the aircraft. The main anti-icing methods include hot air anti-icing, electric heating anti-icing, mechanical deicing, etc. However, the energy reserves of the aircraft itself are limited. The energy consumption for icing protection accounts ...

AI Technical Summary

Problems solved by technology

[0002] When the aircraft is flying under icing weather conditions, when the outer parts of the fuselage collide with supercooled water droplets, the surface will freeze rapidly, and the ice will accumulate to form an ice layer similar to the outline of the parts. The excellent aerodynamic shape is destroyed, resulting in a decline in the flight performance of the aircraft, and in severe cases, it will cause a flight safety accident

In order to avoid the hazards caused by icing, effective protective measures must be taken in areas prone to icing on the aircraft. The main anti-icing methods include hot air anti-icing, electric heating anti-icing, mechanical deicing, etc. However, the energy reserves of the aircraft itself are limited. Energy consumption for icing protection accounts for a small proportion, and icing is a very complicated process. Sometimes there are some special circumstances, and only a single method to solve the icing problem may not meet the requirements of flight protection

[0003] For example, airfoil components mainly occur in the area of ​​the leading edge when icing occurs. The entire surface of the leading edge of the component can be intermittently heated by means of electric heating to reduce the adhesion between icing and its surface, and use the aerodynamic external force during flight to remove the surface. For icing, if the ice shape at the leading edge is relatively symmetrical, the external force on the ice is relatively uniform, and the ice will continue to adhere to the surface of the leading edge, or the temperature of the entire surface can be controlled above zero for direct anti-icing, but in this case, a long time Power consumption is relatively large; vibrating elements can also be arranged on the inner surface of the front edge to destroy the ice structure through mechanical vibration, and the cracked ice will fall off under aerodynamic force to achieve the purpose of deicing. Ice leads to more residual ice

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