一种汽液两相分析方法、装置、介质和设备

By correcting the liquid phase area through grayscale image processing and neural network models, the error in liquid holdup calculation caused by uneven liquid film distribution is solved, enabling accurate liquid holdup measurement of various flow patterns during nuclear reactor flood cooling, and suitable for real-time monitoring and analysis of complex flow patterns.

CN120125563BActive Publication Date: 2026-07-17CHONGQING UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHONGQING UNIV
Filing Date
2025-03-10
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In the process of nuclear reactor flood cooling, the non-uniform distribution of the liquid film phase interface causes refraction, which affects the accuracy of liquid content calculation in traditional visualization data processing. Especially under narrow channels and high temperature conditions, invasive equipment disrupts the flow pattern, and non-invasive methods have failed to effectively handle complex mixed flow patterns.

Method used

By combining grayscale image processing with a neural network model, the liquid phase area is corrected through an elliptical structure model, the liquid and vapor phase regions are extracted based on a gradient algorithm, and deep learning is used to identify dispersed droplets and calculate the total liquid phase area to obtain an accurate liquid content.

Benefits of technology

It significantly improves the accuracy of liquid content calculation, can identify multiple flow patterns in narrow rectangular channels, is suitable for complex mixed flow patterns, provides non-invasive real-time monitoring and analysis, and improves the accuracy of flow and heat transfer parameters.

✦ Generated by Eureka AI based on patent content.

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Abstract

本发明公开了一种汽液两相分析方法、装置、介质和设备,涉及汽液两相分析技术领域。包括:获取核反应棒淹没冷却过程中流道内汽液两相流动的灰度图像;根据灰度梯度变化将灰度图像划分为液相主体区域和汽相区域,其中,汽相区域包括完全透射区域和不完全透射区域;计算液相主体区域初始面积,根据不完全透射区域的表面张力限制对液相主体区域初始面积进行修正,获得液相主体区域修正面积;基于神经网络模型从灰度图像中提取分散在汽相区域中的弥散液区域,计算弥散液区域的面积并进行修正,获得弥散液区域修正面积;将液相主体区域修正面积和弥散液区域修正面积相加获得总液相面积,将总液相面积与流道面积的比值作为含液率。
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