核工业用高压釜温度测试方法

设计了一种在线校准装置,对高压釜温度均匀性、轴向温度场、径向温度场、温度稳定度进行了校准,确定了高压釜有效加热区大小,分析了高压釜温度均匀性测量结果不确定度来源,确定了其不确定度评定方法,采用多家实验室比对法验证了校准结果的可靠性。结果表明,采用的校准工装设计合理、实用性强,从根本上解决了高压高温在线校准的难题,多家实验室比对结果为满意,满足生产需求。

Temperature measurement method of autoclave for nuclear industry

An on-line calibration device was designed to calibrate the temperature uniformity, axial temperature field, radial temperature field and temperature stability of the autoclave, the size of the effective heating area of the autoclave was determined, the source of the measurement result uncertainty of the temperature uniformity of the autoclave was analyzed, and the uncertainty evaluation method was determined. The reliability of the calibration results was verified by comparison with several laboratories. The results show that the calibration tooling used is reasonable and practical, which fundamentally solves the problem of high-pressure high temperature on-line calibration. The comparison results of several laboratories are satisfactory and meet the production needs.