一种大型、大功率辐射内加热器的设计

Design of a large scale and high power radiant inner heater

热强度试验技术是为解决飞行器的热障问题而发展的,热设计已经成为飞行器设计的重要方面,而地面模拟试验则是验证设计的重要手段,通常地面实验以模拟气体动力学加热为主,对于管道、喷管等结构的内加热模拟较少。此类结构的能量传递方向由内向外,采用内加热更加合理、可行。在国内热强度试验领域,接触的实例并不多,大型、大功率的内加热器则更少,我们针对某结构件静热联合试验,就一种大型、大功率辐射内加热器的设计技术进行了初步研究,设计生产了内加热器并成功应用到了具体试验中。

Thermal Structural intensity testing technology is developed for simulating the effects of aerodynamic heating on advanced high-speed flight vehicle structural test components, thermal structure design play important value in the aircraft design, while laboratory thermal simulation is an efficient and important mean of validating structural material concepts and verifying analytical codes. Commonly, it is more reasonable to simulate the heating produced by dynamics and the inner heater for structure like pipeline is scarcer. It is more reasonable that those pipeline structure using inner heater as energy transfer in pipeline structure is from inner to outer. Such inner heating was much less in domestic testing domain, so we first designed and built a large scale and high power inner heater with IR lamps, it has been high successful used for structural testing at high temperature.