压水堆堆芯污垢的分析方法及装置

By establishing a fouling chemical model and discretizing it, the problem of poor convergence of traditional models was solved, and high-precision analysis of the internal heat and mass transfer behavior of pressurized water reactor fouling was achieved, ensuring the safety of nuclear power units.

CN120820586BActive Publication Date: 2026-07-17CHINA NUCLEAR POWER TECH RES INST CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA NUCLEAR POWER TECH RES INST CO LTD
Filing Date
2025-06-20
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Traditional fouling chemistry models struggle to ensure algorithm convergence when simulating heat and mass transfer behavior within pressurized water reactor fouling, thus affecting prediction accuracy.

Method used

A fouling chemical model of the pressurized water reactor core fouling layer is established. The model is discretized by coupling the thermal-hydraulic model and the solute transport model. The initial value is updated and iteratively solved when the objective function does not meet the convergence condition until the convergence condition is met.

Benefits of technology

This improves the accuracy of analyzing heat and mass transfer behavior within fouling deposits, providing accurate data support for pressurized water reactor anomaly analysis and ensuring the safe and stable operation of nuclear power units.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN120820586B_ABST
    Figure CN120820586B_ABST
Patent Text Reader

Abstract

本申请涉及一种压水堆堆芯污垢的分析方法及装置。所述方法包括:建立压水堆的堆芯污垢层的热工水力模型和溶质输运模型,分别对热工水力模型和溶质输运模型进行离散化处理,根据饱和温度初值和溶质浓度初值,对离散化的热工水力模型和离散化的溶质输运模型进行求解,得到当前分析数值,在目标函数不满足收敛条件的情况下,根据当前分析数值更新饱和温度初值和溶质浓度初值,返回重新进行求解,直至目标函数满足收敛条件时停止,根据污垢化学模型和当前分析数值,对堆芯污垢内部的传热传质行为进行分析。采用本方法能够准确分析压水堆污垢行为。
Need to check novelty before this filing date? Find Prior Art