Civilian nucleus top cover tube base cold installation and turnover device

• Main Authors: SUN YONGGANG, WANG PENG, YU LEI, GUO JINGKUN, SUN GANG
• Format: Patent
• Language: English
• Published: 08.07.2015
• Subjects: NUCLEAR ENGINEERING; NUCLEAR PHYSICS; NUCLEAR REACTORS; PHYSICS

The invention discloses a civilian nucleus top tube base cold installation and turnover device. The device comprises a pedestal, a cold installation platform, a sealing surface protection board, and positioning core shafts, wherein the pedestal has a tubular structure; the lower end of the pedestal matches the sealing surface protection board to fix a top cover; the upper end of the pedestal is fixedly connected to the cold installation platform; the cold installation platform is located on the top cover through the positioning core shafts; and the cold installation platform is provided with a plurality of through-holes for installing a pipe seat suspender. According to the invention, a nuclear power pressure vessel is arranged on the top cover and is located through main bolt holes in the flange of the top cover; the top cover assembly can be turned over through hangers; the cold installation platform and the top cover can be located by adjusting a backing plate and by the positioning core shafts; and the cold installation function for driving the pipe seat can be realized by cooperating with the pipe seat suspender. According to the invention, the device is simple in structure and is convenient to operate; and requirements of top cover supporting and magnetic flux ring installation of a driving mechanism during turnover of the top cover of the nuclear power reactor pressure vessel, seat cold installation, and pipe seat welding processes.