Device and method for detecting pipeline corrosion products of pressurized water reactor nuclear power station

Abstract

The invention belongs to the technical field of nuclear power energy, and particularly relates to a device and a method for detecting pipeline corrosion products of a pressurized water reactor nuclear power station. The device is formed by an acquiring and processing system, a rotary type measuring fixture and a computer with bundled software, wherein the acquiring and processing system is formed by a mobile monitoring platform, an x-ray generator and an x-ray detector , and a power supply, wherein the x-ray generator and the x-ray detector respectively connected with the mobile monitoring platform, and is used for measuring fluence rate and attenuation coefficient of the x-ray which penetrates through a pipeline; and the computer is connected with the mobile monitoring platform. The main principle is that: the characteristic that the attenuation degrees of deposit sediments with different thicknesses on the x-ray are different is utilized, the thickness of deposit sediments at a certain angle is inferred according to the attenuation situations of the x-ray which penetrates through the pipeline again, and the thickness of the deposit sediments at each angle in a certain pipeline with unit length is obtained through rotary measurement, so that the distribution situation of the deposit sediments on a radial section of the pipeline is obtained. The device has a simple structure, is easy to operate, and has high measurement accuracy.

Description

technical field [0001] The invention belongs to the technical field of nuclear power energy, and in particular relates to a detection device and a detection method for pipeline corrosion products of pressurized water reactor nuclear power plants. Background technique [0002] In the task of the national "major project of large-scale advanced pressurized water reactor nuclear power plant", it is necessary to study the migration mechanism of corrosion products in the primary circuit water medium, establish a numerical simulation method system for the dynamic research of corrosion product migration process, and reveal the corrosion products in complex media environment According to the distribution law of the water in the primary circuit, the residual corrosion products and the environmental effects in the primary circuit area are evaluated, and the corresponding design criteria are established to provide decision support for the water quality management of the primary circuit. ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the current situation that the corrosion product deposition in pipelines cannot be detected in current nuclear power plant testing facilities, the present invention provides a corrosion product detection device and detection method for pipelines of pressurized water reactor nuclear power plants

Images