Exactly which 3 values are meant by the 3-choice 2 selection for the oxygen flow rate in the gasifier?
Thread Content
Oxygen flow rate and oxygen pressure – what’s the other one?
Four-nozzle fluidized-bed coal-water slurry gasification furnace
They are three oxygen flow rates on the same pipeline, or one flow meter with three transmitters – two out of these three signals are selected.
Traffic three-choice-two is a low-low traffic cascade. Temperature, pressure, flow – that one is for temperature and pressure compensation
Branch pipe flow: there are three pressure taps
There are three pressure measurement points on a venturi; all of these arrangements are intended for safety purposes. Therefore, a two-out-of-three interlock is used for the three flow rates, while temperature and pressure are used to compensate for the effects of temperature and pressure on the flow rate
Flow value after temperature and pressure compensation, 3 choose 2