This blog will present application solutions and equipment used in process heating. Components such as temperature controls, thermocouples, gas pressure regulators and flow meters, to complete industrial burner systems will be discussed. We hope to educate on current technologies, introduce unique process heating applications, and present new industrial heating/process products. For more, please visit Combustion Technology or call 800-327-1831.
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Contact Combustion Technology for more information.
Combustion Technology, LLC
https://combustion-tech.net
800.327.1831
Azbil's AX24R Multivariable Reduced Bore Vortex Flowmeter
Azbil’s AX24R Multivariable Vortex Flowmeter offers accurate and reliable flow metering in a multivariable design. The multivariable design incorporates a high-accuracy velocity sensor, a precision platinum RTD temperature sensor, and a solid-state pressure transducer. The meter’s process connections match the line size but use integrated reducing flanges, and the meter body reduces in diameter, increasing the fluid velocity through the meter. Increasing the velocity in this fashion extends the meter’s measuring range to capture lower flow rates that a full line size meter might miss.
THE AZBIL AX24R EXTENDS MEASURING RANGE AT LOWER FLOW RATES AND SAVES COST. LEARN HOW HERE.
The Siemens SKP25 Combination Safety Shutoff Valve and Regulator
The Siemens SKP25 controls the burner manifold gas pressure according to a fixed setpoint. The SKP25 can also be applied as a 1:1 air/gas proportionator or zero governor.
- Safety shut‐off function and pressure regulating function in one compact unit.
- Applicable as 1:1 air/gas proportionator or zero governor.
- Accurate pressure control characteristics, and zero offset (drop).
- Integral regulation leak limiter.
- Excellent tracking characteristic
Combustion Technology, LLC
https://combustion-tech.net
800.327.1831
Understanding the Importance of Pressure Drop When Using Flowmeters
The pressure inside a pipe can vary from the pressure outside of the process. Friction or a physical obstruction in the pipe may cause a pressure drop in the system, resulting in a loss of line pressure.
Figure 1 shows a high and robust pressure reading at point "A," followed by the pipe narrowing. The pressure reading then drops at point "B." This phenomenon is the definition of pressure drop.
Figure 1: Visual example of a pressure drop in a pipe where a narrowing of the pipe causes a drop in
pressure from point “A” to point “B”.
Maintaining pressure can be vital to the device's operation, its equipment components, or the process performance.
Pressure Drop Rates and Gas Flow Technologies
There are several flow measurement technologies available on the market today. Each technology uses a different method to measure a pipe flow rate, but some are known to cause undesirable pressure drops. It is unrecoverable once the pressure decreases. Let's look at some of the most popular flow measurement technologies and their pressure drop scores.
Thermal Mass Flow Meters Have a Negligible Pressure Drop
Thermal mass flow meters calculate the direct mass flow of air and gases in volumetric or mass units. The fact that the pressure drop in the pipe is negligible or very low is a significant advantage of thermal mass flow technology. There are no moving parts to disrupt the flow, and no additional pressure or temperature compensation is needed to measure the gas's mass flow rate.
Other Advantages of Thermal Mass Flow Measuring
There are many advantages of using thermal gas mass flow meters over other flow measurement technologies:
- Air and gas mass flow measurements in standard volumetric units (e.g., SCFM or NM3/H) or mass units (e.g., LBS/M or KG/H)
- There is no need for extra pressure or temperature compensation.
- Repeatability and an extremely wide measurement range: up to 1000:1 (100:1 typical)
- 4-20mA linear output proportional to mass flow rate
- There are no moving parts.
- Insertion, Inline, and remote* models are all available.
- Flow rate and temperature are measured.
Fox Thermal is revolutionizing thermal mass flow measurement technology with a series of innovations:
- Microprocessor-based, field-rangeable electronics
- DDC-Sensor™ proprietary flow sensor design*
- Gas-SelectX® field selectable gases/gas mixes without affecting accuracy*
- CAL-V™ and Zero CAL-CHECK® Calibration Validation*
- Free FT View™ Software to configure meter, print calibration validation certificates, run simulations, and more!*
- Data Logger with 7-year history*
The Selas Superflame™ Low NOx Medium & High Velocity Burners
The Selas Superflame™ are burners designed for process temperatures up to 2500°F (1371°C), and incorporates two-stage combustion for low NOx. Features and Benefits:
- High excess air capability
- Improved temperature uniformity
- Alloy inner tube
- Flame rod or ultra violet flame detection
- Low NOx formation
- High and medium velocity flame
- Uniform temperature distribution
Applications:
- Annealing furnaces
- Sintering furnaces
- Rotary forge furnaces
- Tundish preheaters
- Nonferrous melting furnaces
- Ceramic kilns






