高温高压—真空催化样品传递机构设计与研究

Design and Study on the Mechanism of Sample Transfer from High Temperature and High Pressure to Vacuum

为了研究催化材料由高温高压到真空环境的物化性能改变,设计了一种专用样品传递机构,主要包括加热室主体、高压装置、对接装置和液体冷却系统。设计过程综合运用Pro/ENGINEER、ANSYS软件分析加热室主体结构与温度场分布,解决了样品传递过程中样品预紧、加热加压、冷却隔热及温度分布控制等问题,实现了在特定条件下与其他机构的真空对接与样品传递功能。测试实验表明:该机构工作区域的径向温度呈分段函数分布,且在不同区间存在较大的函数变化率,确保了催化样品的实验环境。为该类机构的设计提供了一种参考。

In order to study the variety of the catalytic material＇s physical and chemical properties flora high temperature and high pressure to vacuum environment, a special sample transfer mechanism was designed, which mainly included a heating chamber, a high-pressure device, a docking device and a liquid cooling system, the structure of the heating chamber andtemperature distribution was anaalyzed, and several problems such as the prellading, heating and pressuriztng, cooling insulation and temperature distribution controlling during the transfer process was solved by using Pro/ENGINEER und ANSYS during the designprocess. The vacuum docking with other mechanism and the sample passes under celtain conditions was achieved. The testing results show that the temperature distribution along the radial direction in working area of the mechanism is a piecewise function, and a large rate exists in different range, which ensures the cxperimental environment of the catalyst sample. It provides a reference for design of this kind of mechanism.