Rapid sampling device and method for radioactive production sewage

Abstract

A rapid sampling device for radioactive production sewage comprises a gas-liquid separation tank, the upper end of the gas-liquid separation tank is connected with an exhaust pipe, and the lower end of the exhaust pipe passes through a cover plate manhole in a lower cover plate and enters the lower part of the lower cover plate; the side face of the gas-liquid separation tank is connected with a liquid rising pipe, and the lower end of the liquid rising pipe enters the water surface of a sewage production pool; the device further comprises an A3 compressed air main pipe, the A3 compressed air main pipe is connected with an A3 air source pipe, a switch hand valve is arranged in the middle of the A3 air source pipe, the lower end of the A3 air source pipe enters the water surface of the sewage production pool through a cover plate manhole in the sewage cover plate, and the part, below the water surface, of the A3 air source pipe is communicated with the part, below the water surface, of the lower end of the liquid rising pipe; and the bottom of the gas-liquid separation tank is connected with a discharge pipeline.

Description

technical field [0001] The invention relates to the field of sampling devices, in particular to a rapid sampling device for radioactive production sewage. Background technique [0002] The original sampling process of the production sewage pool is realized by personnel using the sampling bucket to lift the water sample into a 5L plastic bucket, and then send it to the five-station analysis room for analysis. Since the sampling device does not have the function of sample circulation, and the lifting depths of different operators are different, the components of each batch of samples taken out vary greatly and are not representative. The same set of sampling devices is used alternately between different pools, which may easily cause sample contamination and affect the analysis results. The sampling operation is carried out on average 5-6 times a day during hot operation. Frequent use of the original sampling device may easily cause radioactive water samples to spill and conta...

AI Technical Summary

Problems solved by technology

Since the sampling device does not have the function of sample circulation, and the lifting depths of different operators are different, the components of each batch of samples taken out vary greatly and are not representative

The same set of sampling devices is used cross-use between different pools, which may easily cause sample contamination and affect the analysis results

The sampling operation is carried out on average 5-6 times a day during hot operation. Frequent use of the original sampling device may easily cause radioactive water samples to spill and contaminate personnel and the ground, which in turn leads to cross-contamination between different areas and increases the burden on radiation protection and surface decontamination.

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