| Issue |
MATEC Web Conf.
Volume 358, 2022
3rd International Symposium on Mechanics, Structures and Materials Science (MSMS 2022)
|
|
|---|---|---|
| Article Number | 01018 | |
| Number of page(s) | 4 | |
| DOI | https://doi.org/10.1051/matecconf/202235801018 | |
| Published online | 19 May 2022 | |
A Verticality Adjustment Technology for AP1000 Refueling Machine Mast
Shandong Nuclear Power Co. LTD., Yantai, 265116 China
The refueling machine is used to handle the nuclear fuel assembly in the nuclear island, and is used to transport fuel between the fuel upender basket and reactor vessel core. During Unit 1 of a nuclear power plant initial fuel loading, it was found that the inner mast operated with large friction, which caused frequent triggering of overload protection during fuel operation, and the refueling machine was difficult to be operated normally. According to the unique design characteristics of the inner mast of the AP1000 refueling machine, the verticality adjustment method of the mast of the AP1000 refueling machine is developed. By adjusting the verticality of the outer mast, the concentricity of the inner and the outer mast, the levelness of the equilibrium arm of the inner mast, and the gap between the guide roller of the outer mast and the inner mast, the problem of high friction in the operation of the inner mast is solved. At the same time, the verticality of the inner mast during operation is ensured. This method has been successfully applied in the first overhaul of a power plant. It can be used to guide the installation and adjustment of the refueling machine mast with similar structure.
Key words: Refueling machine / Mast / Verticality / Total station
© The Authors, published by EDP Sciences, 2022
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.