A radiant heating device with large temperature gradient in multiple temperature zones

Abstract

The invention relates to the field of radiant heating devices, in particular to a radiant heating device with a large temperature gradient in multiple temperature zones. The device comprises a test piece, a bracket, a base, a reflection plate, an electrode, heating elements and a water cooling pipeline. The base is provided with a profile adapted to fit the test piece, and is mounted on the bracket through a rotating shaft. A reflection plate mounting groove is arranged on the base, and the reflection plate is installed in the reflection plate mounting groove. The electrode is arranged on thebase, and heating elements are installed on the electrode. The cooling pipeline is arranged on the electrode and used for cooling the electrode. The distance between the heating elements of the devicecan be simply adjusted according to the position of the electrode on the water cooling pipeline, and the angles of the radiant heaters between the different temperature zones can be adjusted by changing the position of the rotating shaft connected with the base, so that the temperature field distribution test requirements of the surface of the test pieces of different shapes can be met. The watercooling pipeline and the base are independently installed, therefore, the cost is low relative to the internal water cooling structure, and the cooling efficiency is high.

Description

technical field [0001] The application belongs to the field of radiation heating devices, in particular to a radiation heating device with multiple temperature zones and large temperature gradients. Background technique [0002] With the development of the aerospace industry, the flying speed of the aircraft is getting faster and faster, and the aircraft will be subjected to serious aerodynamic heating during the flight, especially the temperature at the leading edge of the wing of the aircraft with a high Mach number will be very high, from the leading edge to the The trailing edge produces a large temperature gradient, and the upper and lower surfaces of the wing near the leading edge produce different temperature field distributions. Therefore, in the process of aircraft design and finalization, in order to study the performance of aircraft structures with large temperature gradients such as wing leading edges in high temperature environments, structural thermal tests nee...

AI Technical Summary

Problems solved by technology

[0006] The purpose of this application is to provide a radiation heating device with multiple temperature zones and large temperature gradients to solve at least one problem in the prior art

Images