Gasification Daily Question: 2016-11-20 Process Analysis Question (5 points for participation, 10 points for a correct answer)
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Gasification Daily Question: 2016-11-20 Process analysis question (5 points for participation, 10 points for a correct answer). Analysis question: Under normal operating conditions, what percentage is appropriate for the frequency control of the high-pressure slurry pump used in water-coal slurry gasification, and why?
Under normal operation, it is appropriate to control the frequency of the high-pressure slurry pump used for water-coal slurry gasification between 30 and 50 Hz (i.e., 60%-100%). The reason is that the frequency converter operates quite stably and reliably in this area.
The frequency conversion control level is adjusted according to the load requirements; there is no such thing as an optimal control level. If we must specify the optimal level of control, then a load of 75%–80% corresponds to the most suitable percentage of frequency variation for the coal slurry pump speed, as it is generally at this load level that the gasifier operates most stably.