Whip Analysis and Protection of Main Steam Pipeline in a Nuclear Power Plant

BAI Guoyu; REN Qian; LIU Baojun; LAN Tianbao

doi:10.19554/j.cnki.1001-3563.2026.01.036

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Packaging Engineering ›› 2026, Vol. 47 ›› Issue (1) : 314-318. DOI: 10.19554/j.cnki.1001-3563.2026.01.036

Defense Equipment

Whip Analysis and Protection of Main Steam Pipeline in a Nuclear Power Plant

BAI Guoyu, REN Qian, LIU Baojun, LAN Tianbao

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Abstract

The high-energy pipeline in nuclear power plants has a high impacting energy after fracture, causing great harm and seriously affecting nuclear safety. When the space near the pipeline end fracture is limited and protective measures cannot be arranged, there is a risk of secondary hazards, and it is necessary to conduct analysis of the pipeline whipping process and research on setting protective measures. With the main steam pipeline as an example, the hypothetical fracture was determined, and the finite element dynamic analysis method was used to study the path, point of action, load, and kinetic energy of the pipeline. When it was inconvenient to install anti-whip restraint devices for a given fracture position, it was demonstrated that pipeline whip would not cause harmful effects on safety-related structures, equipment and components, and anti-whip restraint devices could be installed on the wall. Under the premise of ensuring the safety of nuclear power plants, the work provides guidance for the possible impact on the wall, the arrangement of embedded plates and the selection of anti-whip restraint devices, offers support for improving economy and reducing time costs, and can be applied to similar projects.

Key words

high-energy pipeline / pipeline fracture / whip / finite element dynamic analysis

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BAI Guoyu, REN Qian, LIU Baojun, LAN Tianbao. Whip Analysis and Protection of Main Steam Pipeline in a Nuclear Power Plant[J]. Packaging Engineering. 2026, 47(1): 314-318 https://doi.org/10.19554/j.cnki.1001-3563.2026.01.036

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