Nitrogen-filled uranium hexafluoride gasification sampling and separating equipment

Abstract

The invention belongs to the technical field of radioactive substance analysis and measurement, and particularly relates to nitrogen charging type uranium hexafluoride gasification sampling and separating equipment which comprises a nitrogen charging device, a gasification device, a condensation and collection device, a tail waste absorption device and a control system. The nitrogen charging device, the gasification device, the condensation and collection device and the tail waste absorption device are sequentially connected through valves and pipelines, the control system comprises a PLC (Programmable Logic Controller), and the valves are regulated and controlled by the PLC. According to the invention, sample separation and sampling work of uranium hexafluoride is completed based on a nitrogen filling process, and the sample quality is improved. The automation degree of equipment is improved, most manual operation is replaced based on mechanical and electrical integration, the safety risk of the working environment is reduced, and pollution to the environment is reduced.

Description

technical field [0001] The invention belongs to the technical field of radioactive material analysis and measurement, and in particular relates to a nitrogen-filled uranium hexafluoride gasification sampling and sampling device. Background technique [0002] Uranium hexafluoride is a colorless or pale yellow crystal at room temperature and pressure, which is easy to sublime and is an extremely dangerous radioactive material. Occupational acute poisoning is manifested as respiratory irritation, and in severe cases, it can cause pneumonia, pulmonary edema, and liver and kidney lesions. It reacts with water or water vapor in the air to generate toxic hydrogen fluoride gas and water-soluble uranyl fluoride, which can easily cause fatal injuries if inhaled or in contact with the human body. [0003] The melting point of uranium hexafluoride at normal temperature and pressure is 64.5-64.8°C, and the boiling point is 56.4°C. At 50Psi (0.345MPa), the boiling point is 93° and the me...

AI Technical Summary

Problems solved by technology

[0004] Sampling of UF6 is to take samples from containers containing UF6 for laboratory samples and inspection and testing. When taking samples, the risk factor is high and the operation is complicated.

And the existing sampling device mainly exhausts the air in the pipeline and small sample collection by vacuuming, the equipment cost is high and there is still air remaining, which affects the quality of the sample

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