Selection of instruments for measuring superheated steam
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It is better to use a vortex flow meter or an orifice plate for measuring superheated steam – which one offers higher measurement accuracy and easier maintenance?
Using an HKGB vortex flowmeter results in almost no maintenance needs and high accuracy
It’s better to use an orifice plate; once it’s installed, it requires almost no maintenance. As long as the compensation is properly set, it will be completely reliable
Use vortex flow meters for large variations in steam volume, and orifice plates for small variations.
I think vortex flowmeters are more suitable. Firstly, the measurement range of orifice plates is narrower than that of vortex flow meters, and a pressure tap is required along with a differential pressure transmitter for detection. Insulating, isolating, and maintaining the pressure tap pipes is quite troublesome, and there are numerous issues such as condensation in winter. Furthermore, the pressure loss of vortex street meters is low, while that of orifice plates is high. The vortex street accuracy is also good. For large-diameter vortex street sensors, only the price is a drawback.
It is recommended to use vortex flow meters or high-precision Anemometers; orifice plates incur high pressure losses and have low accuracy at low flow rates