Simulation of Bolt-up Process for Seal Main Bolts of PWR Pressure Vessel
Author(s): CHEN Bao
Pages: 13-15
Year: 2015 Issue: 6
Journal: Hydraulics Pneumatics & Seals
Keyword: PWR; pressure vessel; seal; main bolts; bolt-up;
Abstract: The reactor pressure vessel of self-owned pressure water reactor (PWR) is built, and the bolt-up process for main bolts is analyzed in this paper. According to the calculation, the change of the pre-load on the bolts and the deformation of the main flange can be checked, and a lot of useful conclusions can be got, such as whether the bolt-load of every step is good or not, whether the bolt groups are good or not. The simulation results of this paper are very meaningful for the bolt-up process operation of the first loop pressure vessel.
Pages: 13-15
Year: 2015 Issue: 6
Journal: Hydraulics Pneumatics & Seals
Keyword: PWR; pressure vessel; seal; main bolts; bolt-up;
Abstract: The reactor pressure vessel of self-owned pressure water reactor (PWR) is built, and the bolt-up process for main bolts is analyzed in this paper. According to the calculation, the change of the pre-load on the bolts and the deformation of the main flange can be checked, and a lot of useful conclusions can be got, such as whether the bolt-load of every step is good or not, whether the bolt groups are good or not. The simulation results of this paper are very meaningful for the bolt-up process operation of the first loop pressure vessel.
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