泳池式轻水反应堆内电磁线圈可控温辐照装置设计

本文设计了在泳池式轻水反应堆（简称泳池堆）内在线测量电磁线圈电性能的可控温辐照装置。采用MCNP程序进行中子物理计算，对泳池堆、线圈骨架的结构尺寸与物质组分进行了精细全尺寸模拟，得出辐照装置的发热功率和中子注量率。通过初步估算，使用ANSYS CFX进行了数值模拟，得出辐照装置内线圈在堆运行时的温度，并提出温度控制的方法。辐照装置采用铝材加工制造，并进行了垂直度测试、气压测试、检漏测试。增加了绝缘设计，将辐照装置与泳池堆之间进行绝缘。在线圈处预埋铠装热电偶，对线圈温度进行实时监测。在泳池堆内对电磁线圈进行辐照试验，结果表明，本文设计的辐照装置能满足电磁线圈在泳池堆孔道内进行辐照试验的要求，并可对电磁线圈进行实时温度控制。

Design of Controllable Temperature Irradiation Facility for Electromagnetic Coil in Swimming Pool Light Water Reactor

The design of controllable temperature irradiation facility for on-line measurement of electrical performance of electromagnetic coils in swimming pool light water reactor (swimming pool reactor) was introduced. In the design process, MCNP program was used to carry out neutronics physical calculation, the structure size and material composition of the swimming pool reactor and coil skeleton were simulated in fine full scale, and the heating power and neutron fluence rate of the irradiation facility were obtained. Through preliminary estimation, the temperature of the coil in the irradiation facility during the operation of the reactor was obtained by numerical simulation using ANSYS CFX, and the method of temperature control was proposed. The irradiation facility was made of aluminium, and the verticality test, pressure test and leak detection test were carried out. Insulation design was taken into account to insulate the irradiation facility from the swimming pool reactor. Armored thermocouples were embedded in the coil to monitor the coil temperature in real time. The electromagnetic coil was irradiated in the swimming pool reactor. The results show that the irradiation facility can meet the requirements of the electromagnetic coil irradiation test in the swimming pool reactor channel, and can control the temperature of the electromagnetic coil in real time.