Endoscopic furnace flame thermal imaging monitoring system
1．System introduction
Shanghai Yiji YIJI-NK850IR endoscopic high-temperature furnace flame thermal imaging monitoring system is a temperature measurement technology based on radiation image processing. It extracts the flame and furnace body radiation information carried in the image, quantifies the flame and furnace body temperature distribution, measures the flame shape, diagnoses the furnace combustion working condition, and provides intuitive combustion reference information for operators.
This technology integrates traditional flame television with modern temperature measurement methods, deeply mines the furnace radiation energy information carried in the flame image, and realizes non-contact measurement of flame temperature based on radiation image processing. Its significance lies in expanding the flame television from a single fire viewing function to a furnace flame diagnosis system. By measuring the flame temperature and flame shape, the quantitative relationship between the combustion temperature and the combustion medium is studied, the combustion working state is monitored, and the furnace combustion working condition is assisted in optimizing.
The internal high-temperature furnace flame thermal imaging monitoring system mainly realizes the following functions: ■ Main function 1: Flame TV
The video signal shot by the original flame TV is sent to the control computer through a dedicated video cable, and displayed on the monitor in the form of a video stream after video acquisition, so that the operator can remotely monitor the furnace flame state; at the same time, it provides flame image storage and video recording functions to record the furnace combustion working conditions. ■ Main function 2: Flame shape recognition
The furnace flame shape measurement mainly uses the edge extraction algorithm to separate the flame boundary, count the pixel values occupied by the flame in the length and width directions, and then calculate the two shape parameters of the flame length and flame diameter according to the imaging position relationship, and then analyze the furnace combustion working characteristics. ■ Main function 3: Furnace temperature field detection
The furnace flame temperature is detected using infrared radiation image wireless scanning and processing technology. By online detection of the furnace flame temperature, the combustion condition in the furnace and the heating condition of the material in the furnace can be inferred, and the heating uniformity of the material in the boiler can be understood. By adjusting the combustion condition and the material heating condition, the quality of the heated material can be improved. ■ Main function 3: Data analysis
Provides historical data flame image recall function, which is helpful for post-analysis of flame extinction process, coking state inside the furnace and working characteristics; provides historical curves of flame temperature change trend and flame length (diameter) change trend, analyzes the relationship between flame temperature, flame rigidity and combustion medium, and provides guidance for furnace combustion optimization operation.
Main technical indicators include:
Temperature field measurement refresh cycle: ≤3 seconds
Temperature field grid resolution: cross section ≥10×10, length ≥20
Temperature measurement range: 600-2500°C
Temperature measurement relative error: ±1-5%
Data storage time: can be customized according to actual requirements ■ Main function 5: Dual light contrast
Shanghai Public Security Network No. 31011202011781