Device used for nuclear fuel assembly loading and unloading operations, and mounting method thereof

Abstract

The invention discloses a device used for nuclear fuel assembly loading and unloading operations. The device is mounted on a mounting foundation pit, and comprises a flange, guide posts, a lower-part reactor inner component simulation body, a lower core plate simulation body, first embedded parts, second embedded parts, a third embedded part and a support. The first embedded parts are embedded on the upper end of the mounting foundation pit. The second embedded parts are embedded at the lower end of the mounting foundation pit. At least three second embedded parts are distributed on the periphery of the mounting foundation pit. The third embedded part is embedded below the mounting foundation pit. The flange is arranged on the first embedded parts. The lower core plate simulation body is arranged on the third embedded part. The upper end of the lower-part reactor inner component simulation body is connected with the flange. The lower end of the lower-part reactor inner component simulation body is connected with the support. The device is used for simulating the visual environment during the loading and unloading operations of a pressurized water reactor power plant reactor pressure vessel. With the device, precise position support and simulated environment can be provided for the nuclear fuel assembly. The invention also discloses a mounting method of the device used for nuclear fuel assembly loading and unloading operations.

Description

technical field [0001] The invention relates to a device and method for loading and unloading operations, in particular to a device for loading and unloading nuclear fuel assemblies and a method for installing the device. Background technique [0002] my country's pressurized water reactor nuclear power plants need a major overhaul after a period of operation, and the replacement of nuclear fuel assemblies is a critical path in the overhaul, so nuclear fuel loading and unloading operators need special training. With the rapid development of my country's nuclear power industry, more and more nuclear fuel loading and unloading operators are needed. In order to break the foreign monopoly, improve the working skills of nuclear fuel loading and unloading operators, reduce nuclear safety risks, and shorten refueling time, the state invests in the construction of nuclear power plant containment shells The inaccessible equipment research and development and test center in the center ...

AI Technical Summary

Problems solved by technology

However, the real reactor body equipment is difficult to manufacture, has a long manufacturing cycle, a huge amount of materials, very high cost, and difficult loading and unloading operations. If the design is based on real equipment, the economic cost and time cost cannot be afforded.

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