OPERATING FLOOR CONFINEMENT AND NUCLEAR PLANT

摘要

An embodiment of an operating floor confinement has: an operating floor, a sidewall that surrounds the operating floor, a ceiling that is provided on an upper portion of the sidewall, a reactor well, a fuel pool, a dryer and separator pit, an equipment hatch that is provided on the sidewall, an air lock that is provided on the sidewall, and an isolation valve that is provided in a penetration. The operating floor confinement forms a pressure boundary having pressure resistance and a leakage protection function, is in contact with the containment vessel via a containment vessel head and separated from an equipment area of the reactor building, and has no blowout panel.

主权项

1. An operating floor confinement that constitutes part of a nuclear plant, the nuclear plant including:
a reactor pressure vessel that houses a core; a dry well that houses the reactor pressure vessel; a wet well whose lower portion houses a suppression pool connected via a LOCA vent pipe to the dry well and whose upper portion includes a gas phase of the wet well; a containment vessel that includes at least the dry well, the LOCA vent pipe and the wet well; a containment vessel head; a reactor well that surrounds the containment vessel head; an operating floor that is provided around the reactor well; a fuel pool that is adjacent to the reactor well via a fuel pool slot; a dryer and separator pit that is adjacent to the reactor well via a gate; a main steam line; and a reactor building that houses a section of the main steam line, wherein the operating floor confinement comprises:
the operating floor,a sidewall that surrounds the operating floor,a ceiling that is provided on an upper portion of the sidewall,the reactor well,the fuel pool,the dryer and separator pit,an equipment hatch that is provided on the sidewall,an air lock that is provided on the sidewall, andan isolation valve that is provided on a penetration, wherein the operating floor confinement forms a pressure boundary having pressure resistance and a leakage protection function, is in contact with the containment vessel via the containment vessel head and separated from an equipment area of the reactor building, and has no blowout panel.