A device to seal a Cold Branch Nozzle of a Pressure Vessel of a nuclear reactor.

摘要

System for Sealing off a Nozzle. Is a chain hoist (10) that supports the installation tool has a Plug at each end (20) to close tightly a Nozzle (32) from diametrically opposite Branch Cold once aligned plugs through Scales.Through the rotation of a Cross Nut (34) that holds the tool, insert the plugs of the nozzle and subjected to pressure to achieve Seal using a Hydraulic Jack. The entire system to be immersed in Water of the container control reactor, is used for mounting a TV Camera Underwater Light (24) and (26).