Adjustable integral flat-plate quartz lamp heater structure

Abstract

The invention discloses an adjustable integral flat-plate quartz lamp heater structure which comprises a trolley, bearings, a flat-plate quartz lamp heating assembly, a rotatable frame and a handwheel brake disc locking device, wherein each bearing comprises a bearing pedestal and a bearing support connected with the bearing pedestal, the bearing supports are arranged on the trolley, the rotatable frame is connected to the bearing pedestals via a shaft, the flat-plate quartz lamp heating assembly is arranged in the rotatable frame, and the handwheel brake disc locking device is connected with the bearing pedestals. According to the invention, the flat-plate quartz lamp heating assembly can be switched between a vertical condition and a horizontal condition conveniently, and test conditions are met effectively.

Description

technical field [0001] The invention relates to the field of flat quartz lamps, in particular to an adjustable integral heater structure for flat quartz lamps. Background technique [0002] The quartz lamp heater has the characteristics of low heating cost, small thermal inertia, long heating time, high power and high thermal efficiency. It is widely used in thermal environment simulation and thermal strength assessment test system. [0003] With the continuous improvement of the flight Mach number and on-orbit maneuverability of the aircraft in the adjacent space, the thermal protection performance of the heat-resistant insulation material or structure (hereinafter referred to as the test piece) is also continuously improved. In the past, thermal insulation specimens made of a single low thermal conductivity material were gradually replaced by composite materials with different substrates and fillers, phase change materials, and combined thermal conductivity specimens. Ho...

AI Technical Summary

Problems solved by technology

However, the existing flat-plate quartz lamp heaters are all designed as a fixed form in which the angle between the direction of radiation heating and the direction of gravity is 0° (horizontal working condition) or 90° (vertical working condition). Test conditions for most of the new anti-insulation test pieces

For example, for composite materials with different substrates, the internal filler is easily pyrolyzed during the heating process and is accompanied by the phenomenon of burning on the surface of the substrate. At this time, if the horizontal working condition is used, the flame will burn the lamp tube, causing the lamp tube to burst when heated. Then there will be an extreme situation where the test is forced to stop or the equipment is electrified; for the phase change test piece, if the vertical working condition is adopted, the phase change material encapsulated in the metal shell will absorb heat and liquefy, and it is very easy to deform due to heat at the sealing interface of the metal shell, resulting in After liquefaction, the phase-change medium overflows under the action of gravity and pollutes the environment; while the large-mass multi-layer composite test piece must be in a horizontal working condition, relying on gravity to make the multi-layer insulation materials inside the test piece fit closely, reducing Air thermal resistance

There is no existing structure that can solve the switching between vertical / horizontal working conditions, and the existing test operation process is relatively complicated

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