Consulting on the selection of a superheated steam flow meter for a power plant
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The exhaust pipeline of the back-pressure turbine unit in a small thermal power plant: dimensions 630X14, pressure: 0.69, temperature: 262 degrees; superheated steam, flow rate of approximately 100 t/h. The specifications state that “nozzles should be used for measuring the main steam flow, while standard orifice plates are suitable for measuring steam and water streams”. But the longest straight section of pipe I have here is only 3.1 meters long. Now I need to measure the steam flow rate, and using a standard orifice plate seems inappropriate for this purpose; therefore I’m asking what methods others use Please share your experiences. Thank you all in advance
A V-type cone flow meter should work.
If the straight pipe section is too short, it is recommended to consider a balanced flow meter; the manufacturer’s promotional materials state that \"in most cases, the straight pipe section can be as short as 0.5D\". But such flowmeters are expensive.
We have a similar situation in our factory; using a V-cone flow meter, the measurement works fine.