Online monitoring method and system for slurry stirring effect of desulfurizing absorption tower

By deploying a temperature sensor array outside the desulfurization absorption tower, establishing a benchmark model and compensating for ambient temperature, and monitoring the tower wall temperature in real time, the problem of lag in the evaluation of stirring effect in the existing technology is solved. This enables real-time, online, and visual monitoring and early warning of the slurry stirring effect, improving the stability and safety of the system.

CN121954256APending Publication Date: 2026-05-01HUANENG LUOYUAN POWER GENERATION CO LTD
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Patent Information

Application Number
CN202610119075.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-28
Publication Date
2026-05-01

AI Technical Summary

Technical Problem

Existing technologies cannot achieve real-time, online, visual, and quantitative evaluation of the stirring effect of desulfurization absorption tower slurry, making it difficult for operators to grasp the stirring blind zone and initial deposition state in a timely manner, and thus unable to intervene before the problem worsens.

Method used

By deploying a temperature sensor array outside the absorption tower, a benchmark model is established to collect tower wall temperature data in real time and perform ambient temperature compensation. The stirring effect is graded and judged by combining temperature deviation, uniformity, and the proportion of abnormal area, triggering corresponding level warnings and generating diagnostic information.

Benefits of technology

It enables real-time, online, and visual monitoring and early warning of the mixing effect of the absorber slurry, timely detection of mixing blind spots and abnormal solid deposition, reducing maintenance costs and improving system reliability.

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Abstract

The invention discloses an online monitoring method and system for the slurry stirring effect of a desulfurizing absorption tower, and relates to the technical field of absorption tower slurry stirring monitoring. The method comprises the following steps: acquiring tower wall temperature data under a normal working condition to establish a reference model containing a normal temperature range and a uniformity threshold value of each measuring point; during operation of the system, tower wall temperature and environment temperature data are collected in real time and subjected to compensation processing; comparing the processed data with a reference model, and performing grading judgment on the stirring effect based on the temperature deviation amplitude, the area proportion of the abnormal region and the duration time; and triggering corresponding early warning according to a judgment result and outputting diagnosis information. The system comprises a temperature monitoring unit, an environmental parameter acquisition unit, a data processing unit, a central processing unit, a man-machine interaction unit, an early warning execution unit and the like. According to the invention, real-time, online and visual monitoring and early warning of the stirring effect are realized, and the problems of strong subjectivity and early warning lagging of the traditional monitoring means are solved.
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