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| Heat Transfer Calculation, Simulation Analysis and Material Test of the Radiation Shield Assembly of Reactor Pressure Vessel Insulation |
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| DOI：10.7643/issn.1672-9242.2022.05.018 |
| KeyWord:reactor pressure vessel thermal insulation radiation shield material borosilicate resin heat transfer calculation simulation analysis thermal state property test |
| Author | Institution |
| QIU Yang |
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu , China |
| LI Yu-guang |
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu , China |
| ZHOU Gao-bin |
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu , China |
| XIE Guo-fu |
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu , China |
| ZHANG Shang-lin |
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu , China |
| HU Tian |
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu , China |
| WANG Xiao-tong |
Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu , China |
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| Abstract: |
| In order to ensure the reliability, safety and functionality of the radiation shield assembly of HPR1000 RPV insulation under operation conditions, the operation temperature of radiation shield assembly is calculated by using the calculation analysis (based on heat transfer theory and empirical formula) and finite element simulation analysis (with fluid-structure interaction). The result from calculation analysis is 163.366~168.74 ℃ and meanwhile, the result from finite element simulation analysis is 236.85~266.85 ℃, of which a large deviation of about 100 ℃ appeared. The reason that caused this difference has been studied, and the results of the finite element simulation analysis have been found with a higher confidence level. Besides, a series of hot performance tests have been conducted to study the qualitative change of radiation shielding material. The volume expansion ratio under heat conditions of the radiation shielding material is 38.82%, and obvious pulverization and physical deterioration appeared after the temperature of radiation shielding material exceeded 204 ℃. Briefly, through the study of this paper, finite element simulation analysis with fluid-structure interaction was found to be more applicable for the heat transfer calculation of radiation shield assembly, and the physical characteristics change under heat conditions of radiation shielding material was studied. These conclusions have a great guiding significance to the structure and strength design of the radiation shield assembly. |
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