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Deicing method

A technology of heating section and time, which is applied in the field of deicing and aircraft deicing, can solve the problem that the electric power cannot be used in a wide range, and achieve the effect of efficient use of energy deicing technology, heat loss reduction, and small heating area

Inactive Publication Date: 2016-06-15
XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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  • Claims
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AI Technical Summary

Problems solved by technology

This is because the electric power provided by the power generation equipment on the aircraft is far from meeting the requirements of large-scale electric heating deicing technology, so the electric heating deicing technology has certain limitations in the applicability of the aircraft

Method used

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Embodiment Construction

[0022] The present invention will be further described below.

[0023] A method of deicing comprising:

[0024] Step 1: Determine the protection range required by the tail, and calculate the deicing thermal load required for deicing the protection range;

[0025] Step 2: Divide the empennage into several heating sections according to the deicing thermal load required by the empennage;

[0026] Step 3: Calculate the freezing time for each heating section to reach the deicing thickness;

[0027] Step 4: Determine the deicing time of each heating segment according to the deicing thickness and heating power.

[0028] Further, step 4 includes:

[0029] Step 41: dividing the heating area in each heating section according to the impact characteristics of water droplets;

[0030] Step 42: During the deicing time of the heating section, continuously heat the stagnation point region of the leading edge of the heating section, and perform periodic pulse electric heating on other heat...

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Abstract

The invention belongs to the field of aircraft deicing, and provides a deicing method, which can save power consumption by deicing. Including: Step 1: Determine the protection range required by the tail, and calculate the deicing thermal load required for deicing the protection range; Step 2: Divide the tail into several heating sections according to the deicing thermal load required by the tail; Step 3: Calculate the freezing time for each heating section to reach the deicing thickness; Step 4: Determine the deicing time for each heating section according to the deicing thickness and heating power.

Description

technical field [0001] The invention belongs to the field of aircraft deicing and relates to a deicing method. Background technique [0002] When an aircraft flies in clouds containing supercooled water droplets, many parts will freeze, such as wings, leading edge of tail, propeller, engine air intake, windshield, etc. The icing of the aircraft will destroy the aerodynamic shape of the aircraft, hinder the flow of air, increase the friction and reduce the lift, especially the ice on the wings and tail has a greater impact on the aircraft, which will not only make the lift and drag characteristics Deterioration, but also reduce the flight safety of the aircraft, and even cause accidents of aircraft crashes and fatalities. [0003] Electric heating deicing technology is currently widely used in domestic and foreign aircraft, mainly for deicing the tail of the aircraft, and few aircraft wing deicing systems use electric heating deicing technology. This is because the electric...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64D15/12
Inventor 王小辉韩王超林丽杨秋明李延
Owner XIAN AIRCRAFT DESIGN INST OF AVIATION IND OF CHINA
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