A system for monitoring the flow rate of flue gas at the exit of a furnace

By installing a sampling tube and a video acquisition module at the furnace outlet, combined with image preprocessing and a database of the furnace's internal structure, the problem of inaccurate measurement of flue gas velocity at the furnace outlet was solved, enabling precise adjustment of fuel uniformity and measurement of flow velocity within the furnace.

CN116559494BActive Publication Date: 2026-06-12INNER MONGOLIA HMHJ ALUMINIUM ELECTRICITY CO LTD +2
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
INNER MONGOLIA HMHJ ALUMINIUM ELECTRICITY CO LTD
Filing Date
2023-05-11
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

The existing methods for monitoring flue gas velocity at the furnace outlet are limited and susceptible to sensor damage or positional deviations, resulting in inaccurate measurements and an inability to achieve uniform adjustment of fuel within the furnace.

⚗Method used

By setting up several sampling tubes in conjunction with a video acquisition module and an image preprocessing module, a flow velocity matrix is ​​constructed and adjusted. Combined with a database of the furnace's internal structure and combustion direction, precise measurement and uniformity adjustment of the flue gas velocity at the furnace outlet are achieved.

🎯Benefits of technology

It enables precise measurement of flue gas velocity at the furnace outlet, avoiding the problem of inaccurate measurement, and adjusts fuel distribution through comparative analysis to ensure uniform combustion.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116559494B_ABST
    Figure CN116559494B_ABST
Patent Text Reader

Abstract

The application provides a flue gas flow rate monitoring system at a furnace outlet, comprising: a speed measurement module, configured to collect first flue gas of the furnace at a specified time based on a sampling tube, and to construct a first flow rate matrix; a video acquisition module, configured to monitor and acquire flue gas video of the furnace outlet in real time, and to construct a video frame set for each sampling tube; an image preprocessing module, configured to perform image preprocessing on each three adjacent frame in the video frame set of the same sampling tube, and to construct a second flow rate matrix; an array acquisition module, configured to adjust each current output flow rate based on the first flow rate matrix and the second flow rate matrix, and to acquire an actual flow rate array of the furnace outlet; and a uniformity adjustment module, configured to compare and analyze the actual flow rate array with a standard flow rate array, and to adjust the uniformity of fuel in the furnace. The application avoids inaccurate measurement caused by the single and damage of the measuring device, and further realizes the uniformity adjustment of the fuel in the furnace.
Need to check novelty before this filing date? Find Prior Art