A remote online tritium monitoring system

By constructing a coupled model of gas-solid interface adsorption kinetics and fluid transport, and using an extended Kalman filter algorithm, the monitoring distortion problem caused by memory effect and physical hysteresis in remote tritium online monitoring systems was solved, achieving second-level response and accurate source term reconstruction, thus improving the safety and reliability of the monitoring system.

CN121721678BActive Publication Date: 2026-05-26SHAANXI QINZHOU NUCLEAR & RADIATION SAFETY TECHNONLOY CO LTD
2 Cites 0 Cited by

Patent Information

Application Number
CN202610231424.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2026-02-27
Publication Date
2026-05-26
Estimated Expiration
2046-02-27

AI Technical Summary

Technical Problem

Existing remote tritium online monitoring systems suffer from monitoring distortion due to memory effect and physical lag in long-distance sampling pipelines, making it difficult to achieve accurate source term reconstruction with high sensitivity and second-level response. They are also prone to missing sudden pulse leaks or falsely reporting background fluctuations.

Method used

A coupled model of gas-solid interface adsorption kinetics and fluid transport is constructed. The inverse problem is solved by combining the extended Kalman filter algorithm. The true tritium concentration at the source end of the sampling pipeline inlet is deduced in reverse. Early leakage warning instructions are generated by dynamically adjusting the alarm threshold and multi-dimensional dynamic background subtraction strategy.

Benefits of technology

It achieves second-level response and precise source term intensity restoration for sudden pulse leaks, improving the real-time performance and reliability of monitoring, reducing false alarm rate, and possessing full life-cycle health management capabilities.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

This invention relates to the field of nuclear radiation monitoring technology, specifically a remote online tritium monitoring system, comprising: a data acquisition module for synchronously acquiring end-point tritium concentration, pipeline environmental parameters, and background radiation data; a coupling model construction module for constructing a coupled model of gas-solid interface adsorption kinetics and fluid transport, and establishing a dynamic transfer function; a source term inversion and reconstruction module for performing deconvolution operations to inversely deduce the true tritium concentration at the source; a state assessment and threshold adjustment module for real-time calculation of pipeline adsorption saturation and dynamic adjustment of alarm thresholds; an early warning generation module for generating early leak warning commands; and an operation and maintenance prediction module for identifying pipeline maintenance needs based on the trend of adsorption performance degradation. This invention overcomes the defects of signal lag and peak clipping, achieving a second-level response to sudden pulse leaks.
Need to check novelty before this filing date? Find Prior Art