• LAMTEC

Automatic Furnace Control System

The Walldorf company Lamtec has been acknowledge for its, CO regulation for industrial furnaces as part of 2004 German gas industry prize for innovation. The monitoring and control/regulation of combustion processes is based mainly on measuring the O2 content in the off-gas with a ? probe. A solution developed by Lamtec Mess- und Regelungstechnik fur Feuerungen GmbH of Walldorf goes one step further: a zircon dioxide probe has been used to produce a combustion regulation system which uses the by-products of combustion as indicators of the quality of the combustion process for gas-fired furnaces. The O2 content of the off-gas is still measured but is only used for monitoring and display purposes. Regulation concept: measurement of the O2 content of the off-gas alone cannot provide an indication of complete combustion. Knowledge regarding the amounts of the non-burned H2 and CO constituents contained in the off-gas is also required. For if incomplete combustion occurs, H2 and CO emissions always occur together in the off-gas. This fact been taken into consideration in the solution developed by Lamtec. Advantages associated with this solution include improved control, a clearly shorter response time, compensation for infiltrated air, better reliability robustness, freedom from maintenance and additional energy savings. With this solution, there is also no calibration or adjustment of the burner in a furnace because the system determines the optimum working point for combustion itself.