What are good flow meters for saturated steam?
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How about a elbow flow meter for flow measurement on saturated steam? ? ? Are there still vortex flowmeters? The pressure is roughly 0.4~0.6 MPa, and the temperature is around 190 degrees! !
For such steam, a multi-parameter vortex flow meter will suffice; the digital vortex flow meter model DY produced by Yokogawa Electric in Japan can be used, with the /MV option available, which allows for the measurement of the mass flow rate of steam. This flow meter can directly provide the mass flow rate of steam.
A bent-tube flowmeter will work as well, but in your application the error will be larger, as the stress is too low and the differential pressure is also too small, which places high demands on the transmitter
The utilization rate of elbow flow meters is not very high; orifice plate flow meters are the most mature option for measurement. However, the use of vortex flow meters is increasing steadily, and their stability is also improving. I think vortex flow meters are a better choice.
For a working condition like yours, elbow flow meters are very useful, and vortex flow meters are also highly effective! All of them!
Vortex Sister is used quite often these days, but its service life is a problem – the probes are fragile, the differential pressure sensors of the orifice plates are relatively basic and inexpensive, and permanent pressure loss is also an issue
We use orifice plates in our equipment (for steam at 0.6 MPa and 180°C). The low-pressure steam used in ordinary chemical plants isn’t very expensive; so why is such high precision needed for measurement? Orifice plates are inexpensive and easy to maintain.
Reply to 8# shl860512: Using a conical element to measure steam isn’t very reasonable. If high precision is a key requirement at your site, a vortex street sensor could be an option; if stability and repeatability are more important, a bent tube sensor will work well. If both precision and good cost-effectiveness are desired, a mean velocity tube is a good choice, and a delta barometer is also an excellent option
Our factory uses a V-shaped cone together with a differential pressure transmitter to measure steam flow
How’s it working? ! ! ! ! !