A Brief Introduction to the Online Monitoring System for Cold Dry Flue Gas

　　The TK-1000 continuous monitoring system for flue gas emissions developed by Shandong Xinze Instrument Co., Ltd. adopts advanced DOAS ultraviolet differential absorption spectroscopy technology+extraction cold dry method+laser backscatter dust analyzer, which can measure multiple parameters such as SO2, NOx, O2, temperature, pressure, flow rate, particulate matter, humidity, etc., and upload them to the website of the Environmental Protection Bureau through a data acquisition instrument (or dynamic control instrument). The system equipment is placed in the monitoring station building for easy operation and maintenance. The entire system has a simple structure, modular design, strong stability, and low operating costs.

technical advantage

●Standardized and modular design, with simple and reliable composition;

The system configuration of the nitrogen oxide converter complies with the HJ75-2017 standard;

The entire system instrumentation is self-developed, with high system integration and seamless connection;

Based on ultraviolet differential spectroscopy (DOAS) technology, an innovative multi parameter joint estimation and interference cancellation algorithm has been developed to achieve extremely low zero drift and range drift over a wide temperature range, with detection limits for SO2 and NO as low as 0.05mg/m3;

Adopting PLC control, with high degree of automation, the LCD screen displays the system flow path and collects detailed status information of the system, which can serve as the most advantageous resource for data validity review.