T: +60(3) 3344 8819

F: +60(3) 3343 8819

Measuring exhaust air, supply air and burner gas for thermal Post-Combustion

Measuring exhaust air, supply air and burner gas for thermal Post-Combustion Hoentzsch Vortex Sensor

Thermal or thermal regenerative post-combustion is the process of cleaning industrial exhaust gases. Contaminated air, explosive process gases, flare and waste gases are lead to a combustion chamber and burned in temperatures between 700 °C and 1,200°C.The Höntzsch Vortex sensor with ATEX and SIL certification measure the flow rate of inflowing, solvent-containing exhaust air to manage the high energy consumption in combustion. They are robust (no moving parts) with longevity and minimal maintenance.

Application

Thermal post-combustion is an exhaust air and exhaust gas cleaning process. Air hygienically it’s an optimal process because exhaust air/exhaust gases except for sulfur, halogen or other thermally non-decomposable foreign substances are turned into the non-hazardous substances water (H2O) or carbon dioxide (CO2). The process is perfectly suited for VOC laden gases starting at 1g/Nm³ at a VOC precipitator efficiency over 99.8 %. That way required limit values can be adhered to.

VA40ZG7

Fast start and stop allow the use under highly fluctuating process conditions.
Special flow sensors can measure inflow of exhaust gases to the post-combustion plant and therefore regulate the process, guaranteeing optimal combustion.

Process data

  • Measuring points: supply point of exhaust air, supply point of natural gas, supply of air in TNV (RTO), exhaust air after the TNV
  • Measuring range: typically 5 to 15 m/s

    Flowtherm

  • Process pressure: slight underpressure, overpressure
  • Process environment: typically ATEX zone 2, sometimes SIL 2 required

Recommended Hoentzsch Products

Vortex probe VA40…ZG7: standard compact unit, variable insertion depth

Handheld unit Flowtherm ex: multifunctional handheld with datalogger - for the use in explosive atmospheres