In the production process of high-risk industries such as petroleum, chemical, and pharmaceutical, efficient purification of volatile organic compounds (VOCs) waste gas is an environmental and safety issue that enterprises must face. Regenerative incinerators (RTOs) have become key equipment for many enterprises to achieve environmental standards due to their efficient exhaust gas treatment capabilities and thermal energy recovery advantages. However, in the process of exhaust gas treatment, there is a significant risk that cannot be ignored - the explosion hazard caused by the concentration of combustible gases exceeding the lower explosive limit (LEL).

VOCs exhaust gas has complex components and is often accompanied by various flammable and explosive gases. Once its concentration exceeds the lower explosive limit (LEL) during transportation and enters the high-temperature environment inside the RTO furnace, it is highly likely to cause flash explosions, fires, and even serious explosion accidents, resulting in equipment damage, production interruption, personnel injury, and significant economic losses. The accident case repeatedly warns that relying solely on manual inspection or routine monitoring cannot cope with the risk of sudden changes in exhaust gas concentration.

The security line must move forward. Install professional grade equipment at the inlet of the RTO incineratorLEL concentration detectorIt is the core measure to eliminate the risk of explosion from the source. This instrument adopts professional flame temperature detection (FTA) technology and has the following key characteristics:

-Rapid response: With a response time of less than 1 second, it can accurately capture instantaneous fluctuations in concentration and strive for critical disposal time for the system;

-Continuous monitoring: 24-hour real-time online analysis, dynamically tracking the trend of combustible gas concentration changes in exhaust gas;

-Intelligent linkage: Once the detected concentration approaches the preset alarm threshold (such as 25% LEL), the system can immediately trigger an audible and visual alarm, and automatically interlock to perform protective actions such as emergency cut-off of air intake, opening of bypass or starting of dilution fan, forming an integrated closed-loop protection of "monitoring warning disposal".

Shigona SOLAREx seriesLEL concentration detectorUsing FTA direct measurement technology, with a response time of less than 1 second

SOLAREx seriesLEL concentration detectorIt is a highly integrated online LEL measuring instrument that uses hydrogen flame temperature detection (FTA) technology for direct measurement, with a reaction time of less than 1 second and a measurement range of 0 to 100% LEL.

Technical Specifications

• Range: 0 to 100% Low Explosive Limit (LEL)

• Operating temperature: The sensor in the combustion chamber is heated to 220 ° C

Measurement accuracy: ≤± 2% F.S

• Repeatability: ≤± 1%

• Linearity error: ≤ 1%

• Zero drift: ≤± 1%/30 days

Range drift (sensitivity): ≤± 2%/year

• Response time:<1 second

SOLAREx seriesLEL concentration detectorIt is developed and produced by Higona, and its principle is to directly measure the concentration of combustible gases in the sample through hydrogen flame temperature detection (FTA). It can respond to all combustible gases (including H2S, CO, H2, etc.) with a response time of less than 1 second. SOLAREx can ensure that the analyzer continuously measures the low explosive limit of exhaust gas, with a measurement range of 0-100% LEL.

As a professional supplier of analytical instruments, Higona Technology's products include process monitoring analyzers that can be independently installed and usedFull monitoring analyzer and environmental monitoring analyzer. The products developed include:FTA lower explosive limit analyzerLaser gas analyzer, VOC infrared thermal imaging device, oxygen analyzer, infrared analyzer, thermal conductivity analyzer, gas alarm device, VOC online monitoring system, etc.

For enterprises, installationLEL concentration detectorNot only is it a positive response to the national "Work Safety Law" and environmental regulations, but it is also a wise investment to fulfill the main responsibility, protect the lives and safety of employees, and ensure continuous production. It is like installing a pair of "smart eyes" on the RTO system, constantly guarding the safety boundaries of production operations.

In today's increasingly strict environmental requirements and unbreakable safety production red lines, let us empower safety with technology to prevent and replace remediation. Choose a reliable LEL concentration detection solution to strengthen the front-end defense of RTO operation, making exhaust gas treatment safer, more efficient, and more reassuring.