System for concurrently measuring uranium concentration and nitric acid concentration

Abstract

The invention belongs to the technical field of analytical chemistry, and discloses a system for concurrently measuring a uranium concentration and a nitric acid concentration during a spent fuel post-treatment process. The system comprises two parts such as a hardware system and a software system, wherein the hardware system comprises a sampling analysis system, an instrumentation system, a data acquisition and control system, an industrial control machine and a peripheral equipment system, the sampling analysis system comprises a U-shaped oscillation tube density meter and a electrode-free conductivity analyzer, analog signals of the measured uranium concentration and the measured nitric acid concentration are read by the instrumentation system, are converted into digital signals through the data acquisition and control system, and are transmitted to the industrial control machine through a data transmission line, and the uranium concentration and the nitric acid concentration in the solution are directly calculated through a UraniumAcid1.0 software. With the system, the uranium concentration and the nitric acid concentration can be rapidly and concurrently measured.

Description

technical field [0001] The invention belongs to the technical field of analytical chemistry, and in particular relates to a system for simultaneously measuring the concentrations of uranium and nitric acid in the spent fuel reprocessing process. Background technique [0002] In the spent fuel reprocessing process, the concentration of uranium and nitric acid are two important process control parameters, which directly affect the operation effect of the reprocessing process. For the analysis of the concentration of uranium and nitric acid, the traditional method is to use the specific gravity method and Wheatstone bridge method to measure the concentration of uranium and nitric acid respectively. The disadvantage of not being able to grasp the concentration of feed liquid components in time. In addition, the measuring device used in the specific gravity method is bulky, and the electrodes of the Wheatstone bridge method are easily poisoned. These characteristics make the tra...

AI Technical Summary

Problems solved by technology

For the analysis of the concentration of uranium and nitric acid, the traditional method is to use the specific gravity method and Wheatstone bridge method to measure the concentration of uranium and nitric acid respectively. The disadvantage of not being able to grasp the concentration of the liquid components in time

In addition, the measurement device used in the specific gravity method is bulky, and the electrode of the Wheatstone bridge method is easily poisoned. These characteristics make the traditional method unable to be applied to the on-line analysis of the concentration of uranium and nitric acid in the post-treatment liquid.

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