Graphite dust collecting device for ball bed high-temperature gas-cooled reactor

Abstract

The invention belongs to the technical field of nuclear pollution prevention and control, and relates to a graphite dust collecting device for a ball bed high-temperature gas-cooled reactor. The collecting device has a spherical shape, and includes a core, a filtering layer, supporting bodies and a shell from the inside to the outside, and the core is a solid sphere, and can adjust and balance theweight of the collecting device; the external of the core is coated with the filtering layer, and the filtering layer is formed by filling with filtering particles, and is used for filtering graphitedusts; a plurality of the supporting bodies connect the filtering layer with the shell, and are used for supporting the shell and creating an internal space of the collecting device; and the surfaceof the shell is uniformly provided with holes. The graphite dust collecting device for the ball bed high-temperature gas-cooled reactor can effectively collect the graphite dusts generated in the filling and running process of the ball bed high-temperature gas-cooled reactor, and solves the unique problem of graphite dust pollution of the ball bed high-temperature gas-cooled reactor.

Description

technical field [0001] The invention belongs to the technical field of nuclear pollution prevention and control, and relates to a graphite dust collection device for a pebble bed high-temperature gas-cooled reactor. Background technique [0002] High Temperature Gas-cooled Reactor (HTR, High Temperature Gas-cooled Reactor) is known as an advanced reactor type "with the characteristics of the fourth-generation nuclear energy system". Due to the use of high-temperature-resistant graphite as a moderator, the use of helium with excellent thermal performance and ceramic-type coated particle fuel, HTR has a high operating temperature (750-900°C) and thermal efficiency (40%-60%) . At present, my country's HTR uses spherical fuel elements. For example, the 10MW high-temperature gas-cooled test reactor (HTR-10) of Tsinghua University and the Shandong Shidaowan high-temperature gas-cooled reactor nuclear power plant demonstration project (HTR-PM) both use spherical fuel elements. The...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a graphite dust collection device for pebble bed high temperature gas-cooled reactor, which can effectively capture the graphite dust produced in the pebble bed high temperature gas-cooled reactor during loading and operation, and solve the problem of high temperature of pebble bed. Graphite dust pollution problem unique to gas-cooled reactors

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