HWRR堆内重水温度范围在55℃至80℃之间,因此,采用铂电阻测温元件是合理的。然而,铂电阻测温元件受中子辐照后,测温特性发生了变化,产生了一个不合理的△R增值,且△R随中子注量的增加而增加,破坏了测温元件的技术特性,使重水温度的测量值与重水实际温度之间的偏差越来越大。 HWRR reactor heavy water temperature range between 55 ℃ to 80 ℃, therefore, the use of platinum resistance temperature measurement device is reasonable. However, the temperature characteristics of the platinum resistance temperature sensor after the neutron irradiation has changed, resulting in an unreasonable ΔR value, and △ R increases with the increase of neutron fluence, destroying the temperature measuring element Technical characteristics, the measured value of heavy water temperature and heavy water, the actual deviation between the growing temperature.