Sealing structure for personnel air lock of containment vessel of nuclear power plant

The utility model discloses a sealing structure for a nuclear power plant containment personnel air lock, which comprises a first dovetail groove and a second dovetail groove which are arranged on a door plate, rubber sealing strips are arranged in the first dovetail groove and the second dovetail groove, the cross section of each rubber sealing strip is V-shaped, and the cross section of each rubber sealing strip is V-shaped. And the V-shaped opening faces the bottoms of the first dovetail groove and the second dovetail groove. The sealing device is simple in structure, reasonable in design, convenient to achieve, low in cost, capable of being effectively applied to sealing of personnel air gates of the containment vessel of the nuclear power plant, capable of achieving reliable, stable and long-acting sealing under the low compression ratio, capable of ensuring integrity and sealing performance of the pressure boundary of the containment vessel, good in using effect and convenient to use and popularize. 本实用