Liquid natural and petroleum gas consumption at valve train burners at EAF

Some burner systems in blast furnaces are operated with fuel consisting of liquefied natural gas (LNG) or liquefied petroleum gas (LPG). Each burner has its own valve train branch for fuel gas and oxygen. The valve train branch controls the amount of fuel gas and oxygen that is supplied to the burner. This task requires precise control of the fuel flow by monitoring fuel pressure and temperature in order to provide standardized consumption and operating data for the process controllers. A flowmeter, an electronic pressure transmitter, and a temperature sensor reliably accomplish this monitoring task. Pressure and temperature measurement is only possible in non-ex areas.

  • Following product families can be used
    • Pt100 element, accuracy class A according to IEC 60751
    • Measuring ranges –50 °C ... +150 °C and –50 °C ... +250 °C
    • Wetted parts made from corrosion resistant stainless steel 1.4571
    • Various mechanical adaptations and insertion lengths, also available with thermowell
    • Pt100 (4-wire) or 4 mA ... 20 mA (2-wire)
    • Circular connector M12 x 1 (IP 67) or L-connector according to DIN EN 175301-803 A (IP 65)
    • Highly efficient ultrasonic transducer - up to gas temperatures of 280 °C and pressures up to 450 bar
    • Direct path layout
    • Intelligent self-diagnostics
    • Compact, robust design
    • Integrated log book and data logger
    • Large measuring range 1:120
    • Bidirectional measurement
    • Low power consumption: <1 W
    • Pressure measurement ranges from 0 bar ... 0.05 bar up to 0 bar ... 1000 bar
    • Relative, absolute, and ± measuring ranges
    • Large number of process connections available
    • No mechanical moving parts. Hence no wear, fatigue, or maintenance
    • Circularly welded, hermetically sealed stainless steel membrane
    • Output signal 4 mA ... 20 mA, 0 V ... 5 V or 0 V ... 10 V
    • Electrical connection M12 x 1, angled plug (acc. to DIN 175301-803 A) or cable connection