Improvement of Installations with Isotopic Enrichment by Selective Gas Diffusion and Equipped with Motor Compressors (French Patent)

摘要

The invention deals with selective gas diffusion isotopic enrichment installations for nuclear fuels and concerns more specifically a structural body of the circuit. The enrichment unit involved in the inventions is of the integrated structure type and includes: a separation chamber with porous barriers between two volumes with different enrichment rates, a heat exchanger on the low-pressure flux, a part supporting the above-mentioned elements and the motor compressor and ensuring distribution of the fluxes of the working gas, and a motor compressor of the type that is integrated with the structures. The entire unit is in the form of a vertical cylindrical column that rests on a slab and is connected by pipes to the neighboring cells. The purpose of the invention is to arrange, with the framework of a compact enrichment unit, the internal walls of the supporting part so as to provide good aerodynamic qualities, permit the free expansion of elements of different temperature, and facilitate preparation, anti-corrosion coating, and surface state control operations. (ERA citation 08:038496)