Concrete module for dry storage of medium-density horizontal spent fuel assemblies

Abstract

The invention belongs to the technical field of storage of spent fuel assemblies of nuclear power plants and particularly relates to a concrete module for dry storage of medium-density horizontal spent fuel assemblies. A concrete module frame of the module is internally provided with support components and spent fuel storage tanks, the spent fuel storage tanks are located on the support components, the support components are placed on the concrete module frame, the top of the concrete module frame is provided with a shielding top cover, the side wall of the concrete module frame is provided with a hatch, the bottom of the concrete module frame is provided with an air inlet passage, and an air outlet channel is formed between the top of the concrete module frame and the shielding top cover;the concrete module frame is a cubic hollow cavity and is composed of five 1 / 5 concrete module frame bodies, and the 1 / 5 concrete module frame bodies are distributed on an upper layer and a lower layer separately; the upper layer is provided with two corresponding 1 / 5 concrete module frame bodies, and the lower layer is provided with three corresponding 1 / 5 concrete module frame bodies. The module achieves dry storage of the spent fuel assemblies and discharge waste heat of the spent fuel storage tanks through natural ventilation.

Description

technical field [0001] The invention belongs to the technical field of nuclear power plant spent fuel assembly storage, and in particular relates to a medium-density horizontal spent fuel assembly dry storage concrete module. Background technique [0002] At present, the dry storage technology of spent fuel components of nuclear power plants in my country is not yet mature enough, the spent fuel dry storage system has not yet been localized and independent, and the concrete module design and manufacturing technology for dry storage of spent fuel components has not yet been perfected. At the same time, with the continuous increase of domestic nuclear power plant operating years, the demand for spent fuel storage is increasing year by year. Therefore, it is urgent to develop an efficient concrete module for dry storage of spent fuel assemblies to realize dry storage of spent fuel assemblies. Contents of the invention [0003] The purpose of the present invention is to provid...

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Problems solved by technology

[0002] At present, the dry storage technology of spent fuel components of nuclear power plants in my country is not mature enough, the spent fuel dry storage system has not yet been localized and independent, and the concrete module design and manufacturing technology for dry storage of spent fuel components has not yet been perfected

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