Mounting method for mounting temperature thermocouple on inner surface of skin
A technology of temperature measuring thermocouple and installation method, which is applied in the direction of using electric device, measuring device, measuring heat, etc., to achieve the effect of accurate temperature value and convenient installation
Inactive Publication Date: 2013-04-03
COMAC +1
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Problems solved by technology
[0006] There are many defects in the above-mentioned installation method of the temperature sensor, for example, it is necessary to weld the bracket (generally made of aluminum alloy) and the skin of the aluminum alloy, which usually requires a special welding method
Moreover, welding inevitably damages the skin, which undoubtedly has a negative impact on the fluid movement and heat transfer inside the skin
Method used
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[0021] Such as figure 1 As shown, it schematically shows that a plurality of temperature measuring thermocouples 14 are arranged in the skin 12 of the wing leading edge 10 . As everyone knows, the piccolo is used as the flow distribution and air injection part of the wing hot gas anti-icing system, which is used to transport the gas with a higher temperature and spray the hot gas to the skin 12 through a plurality of holes arranged on the piccolo to make the The temperature of the skin 12 is increased to prevent the outer surface of the skin 12 from freezing. These temperature-measuring thermocouples 14 are all arranged on predetermined critical sections. Here, the so-called critical sections refer to the pre-determined sections on the wings in order to verify whether the performance of the wing hot gas anti-icing system meets the design requirements during the flight test. The selected airfoil section along the chord direction in the most likely icing region, since the selec...
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Abstract
The invention provides a mounting method for mounting a temperature thermocouple on the inner surface of a skin. The inner surface of the skin is heated by gas released by a whistle-shaped pipe; and the temperature thermocouple is used for detecting the temperature of the inner surface of the skin. The mounting method comprises the following steps of: providing a metal thin sheet, wherein the metal thin sheet is provided with a first surface located at one side and a second surface located at the other side; welding the temperature thermocouple on the first surface of the metal thin sheet; and gluing the second surface of the metal thin sheet on the inner surface of the skin. According to the mounting method disclosed by the invention, the temperature thermocouple can be conveniently mounted; and meanwhile, the skin can not be damaged and the operation and the implementation are easy, and a temperature value measured by the temperature thermocouple is accurate.
Description
technical field [0001] The invention relates to an installation method for installing a temperature-measuring thermocouple to the inner surface of a skin. Background technique [0002] The wing hot air anti-icing system of civil aircraft provides safety guarantee for the aircraft to fly under icing weather conditions, and provides sufficient heat source for the wing, which is the key component of the aircraft to generate lift, to avoid icing on the surface of the wing and affecting the aerodynamic shape of the wing . [0003] After the design of the wing hot gas anti-icing system is completed, a series of calculation analysis, test flight, etc. are required to verify whether the system design meets the design requirements and airworthiness provisions. As an important verification method, flight test has been paid more and more attention. [0004] According to the performance verification of the wing hot gas anti-icing system and the compliance verification requirements of ...
Claims
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Inventor 霍西恒王大伟白穆李革萍
Owner COMAC