Method for recycling pre-filter frame of nuclear power plant

Abstract

The invention discloses a method for recycling a pre-filter frame of a nuclear power plant, which comprises the following steps of: peeling off the used pre-filter frame and filter material; measuringthe radioactive contamination of the pre-filter frame; if the radioactive contamination of the pre-filter frame is less than a release value, bonding the pre-filter frame with a new filter material for recycling. Because the filter material which is polluted by filtering is peeled off from the pre-filter frame, the radioactive contamination of the pre-filter frame is measured, and the pre-filterframe with a radioactive contamination without exceeding a release value can be recycled, the pre-filter frame which is not radioactively polluted or has less pollution can be recycled, inventory andreplacement costs of spare parts are saved, the production cycle is shortened and the production efficiency is improved; the pre-filter frame is recycled, the volume of the radioactive waste can be reduced by about 80%, the environmental benefit and the responsibility for the society can be fully embodied, and certain economic benefits can be generated; meanwhile, the method has important significance for protecting environment and reducing radioactive pollution.

Description

technical field [0001] The invention relates to repeated recovery and utilization of nuclear power plant spare parts, in particular to a method for repeated utilization of a nuclear power plant pre-filter frame. Background technique [0002] A nuclear power plant, also known as a nuclear power plant, is a power plant that uses the energy released by nuclear fission (Nuclear Fission) or nuclear fusion (Nuclear Fusion) reactions to generate electricity. Nuclear power plants currently in commercial operation use nuclear fission reactions to generate electricity. Nuclear power plants are generally divided into two parts: nuclear islands that use nuclear fission to produce steam (including reactor devices and primary loop systems) and conventional islands that use steam to generate electricity (including turbogenerator systems). The fuel used is generally radioactive heavy metals: uranium, plutonium. [0003] The energy released during the fission process of nuclear fuel, throu...

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Problems solved by technology

[0005] In an ordinary non-radiative environment, the prior art has a recycling method for the air filter frame, such as the invention patent of CN103736338A, which discloses a plate filter, which is used for air filtration, and The plate filter is recycled, but this patent is used in a non-radiation environment. The filter is mainly used to filter the dust in the air and has no radioactive substances. Therefore, the filter recycling method in this patent cannot be applied to those with Nuclear power plant with radioactive contamination particles

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