Flow measurement in the plant using a porous pitot tube flow meter.
The average flow velocity in the piping can be easily measured with a porous pitot tube.
The Pitot tube has a rod-like shape. It is inserted vertically into the piping to measure flow rate. Holes are provided on the rod to detect total pressure and static pressure. By measuring the differential pressure (also called dynamic pressure), the flow velocity of the fluid flowing in the pipe can be determined. The multi-hole Pitot tube has multiple holes on the rod that comply with JIS B 8330, allowing for the measurement of average flow velocity. The two pressure sensing pipes that exit the Pitot tube are connected to the high-pressure and low-pressure sides of a differential pressure transmitter. The differential pressure is converted to flow rate through square root calculation processing by the differential pressure transmitter. It is often used for measuring exhaust gas flow rates in large-diameter ducts. Large-diameter ducts (300A or 500A and above) cannot be manufactured with orifice plates or are very costly, making the Pitot tube flow meter a strong option. Among flow meters, the Pitot tube is simple and relatively low-cost.
- 企業：ジェイエムエス
- 価格：Other
