Online measuring device and method of uranium content in uranium-containing liquid

Abstract

The invention discloses an online measuring device and method of uranium content in uranium-containing liquid. The online measuring device comprises an organic glass pipeline, a shielding shell is arranged on the outer side of the organic glass pipeline, and a 57Co radiation source is put in the shielding shell; the online measuring device further comprises a high-purity germanium gamma detector which is connected with a multichannel gamma energy spectrometer through a data line, and the high-purity germanium gamma detector and the 57Co radiation source are arranged symmetrically by taking axis of the organic glass pipeline as axis of symmetry. The uranium-containing liquid in a monitored process pipeline (point location) is guided into a bypass measuring system, gamma ray accounting for 85.51% in 57Co is used as penetrating ray, a relation model of uranium concentration and counting rate is built through absorption of the gamma ray by the organic glass pipeline and the uranium-containing liquid, and online and real-time measuring of uranium concentration in the uranium-containing liquid is realized; by the online measuring device and method, real-time and online measuring of the uranium-containing liquid in the field of nuclear fuel separation, purification, chemical industry and spent fuel aftertreatment is achieved.

Description

technical field [0001] The invention relates to the field of on-line detection and analysis of nuclear fuel cycle, in particular to an on-line measurement device and method for uranium content in uranium-containing liquid. Background technique [0002] Fuel element development and spent fuel reprocessing are very important links in the nuclear industry system and the core work of the nuclear fuel cycle. Among them, the chemical conversion of uranium is a key link in the development of fuel microspheres, which provides the necessary fuel phase for the manufacture of fuel elements, directly affects the progress of the development of fuel elements, and is also related to the closed balance of nuclear materials; Disposal is the last link in the nuclear industry system and directly determines the safety of nuclear engineering. [0003] In the process of its process conversion, the uranium concentration value of the uranium-containing solution in a large number of uranium-contain...

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Problems solved by technology

[0004] The purpose of the present invention is to provide an on-line measuring device and method for measuring uranium content in uranium-containing liquid, so as to solve the problems of long analysis process, cumbersome operation, insufficient stability and precision in the measurement of uranium concentration of uranium-containing solution in uranium pipelines in the prior art The problem

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