.png)
- Flue gas airtight sampler
The International Agency for Research on Cancer has classified SO3 and sulfuric acid mist as Group G1 carcinogens, protecting analysts from inhaling high concentrations of SO2 and SO3 to avoid the risk of cancer and comprehensively ensure the safety of analysts.
This product integrates sampling pipelines, acid gas recovery, and pipeline clogging prevention, which can shorten the analysis time and reduce the workload of analysts.
The time-weighted average (TLVTN) that meets the threshold value of sulfur dioxide is 5ppmm, which complies with the national occupational health standards.
- Traditional flue gas analysis process for sulfuric acid production systems
In 2022, the sulfuric acid industry pioneered the flue gas closed sampling device. In 2025, it obtained the patent certificate authorization announcement number CN223179855U, achieving zero emission of acidic gases in flue gas analysis of sulfuric acid plants, accurate measurement, rapid and pollution-free flue gas closed sampling technology, and contributing to high-quality green production in the sulfuric acid industry.
The traditional flue gas analysis process is shown in Figures 1(a)-(b). During this analysis process, problems such as excessive pipelines on the experimental operation console, unreasonable equipment placement, and limited controllable space for the experiment affect the analysis process of the operators and interfere with the experimental data results. In addition, during the sampling and analysis process, a large amount of acidic and toxic gases are often leaked out, which not only pollutes the environment but also causes corrosion to production equipment. Over a long period of time, it also poses a threat to the life and health of analysts.
.jpg)
- Features of the closed flue gas sampler
The physical picture and structural diagram of the LQ-6A flue gas closed sampler. As can be seen from the figure, this equipment is mainly composed of a level platform, exhaust fan, flowmeter, pressure gauge, analysis port, operation console, and analysis flue gas inlet, etc. In terms of design, it adopts a skid-mounted method and can concentrate up to 10 channels of analysis flue gas, which can meet the analysis requirements of sulfur acid production, flue gas acid production, and pyrite acid production. The entire device has a compact structure, a reasonable layout, and is convenient for installation and maintenance. The key components are made of corrosion-resistant materials such as 304 or 316 stainless steel to ensure long-term stable operation in acidic gas environments. According to its structural characteristics, it can be placed at any position within 0 meters of the converter, facilitating the operation of analysts. Moreover, the internal circulation and replacement of the analyzed flue gas ensure that there is no emission of acidic and toxic gases (SO2/SO3) during the analysis process, improving the industrial environment and providing a comfortable sampling and analysis environment for analysts.
.jpg)
- Product Feature
.jpg)
- Parameters of the closed flue gas sampler
.jpg)
