Processing method of burnable poison bar of nuclear power station and suspension frame for burnable poison bar

Abstract

The invention provides a processing method for a burnable poison bar of a nuclear power station, which comprises the following steps: arranging the burnable poison bar on a suspension frame; then cutting and disintegrating the burnable poison bar by a cutting machine in a spent fuel canning tank; collecting and putting the cut burnable poison bar into a packing container; and finally, putting the packing container on a spent fuel grillage for storing. The suspension frame provided by the invention comprises a connecting plate and a yoke plate, wherein the connecting plate is connected with the yoke plate through a guide cylinder; and a plurality of connecting holes which can be connected with the burnable poison bar are uniformly distributed on the connecting plate. In the invention, the burnable poison bar is arranged on the suspension frame, then cut and disintegrated by the cutting machine in the spent fuel canning tank, put into the special packing container and stored in the spent fuel grillage, thus the disposition volume of the radioactive waste can be maximumly reduced, the fuel grillages occupied by the burnable poison bar can be greatly reduced, the container can be stored for a long time, and at the same time, when the burnable poison bar is cut, no crushed borate glass falls into a water tank.

Description

technical field [0001] The invention belongs to the field of reactor fuel treatment in nuclear power plants, and in particular relates to a method for treating burnable poison rods in nuclear power plants and a hanging structure used in the treatment of burnable poison rods. Background technique [0002] Nuclear power is one of the most important components of modern energy supply and a typical example of high technology benefiting mankind. At present, the total installed capacity of nuclear power in the world has exceeded 350 million KW, and there are 434 different types of nuclear power units in operation. my country's nuclear power started relatively late, but has made rapid progress. With the increasing demand for energy and the serious environmental problems brought about by thermal power, the broad prospects for the development of nuclear power have been determined. Nuclear power plants rely on nuclear fuel to undergo nuclear fission in the reactor to release energy f...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a treatment method for burnable poison rods in nuclear power plants, aiming to solve the problems of large storage space and high disposal cost of existing burnable poison rods

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