Help! What are the reasons for the high outlet temperature of the lock-hopper circulation pump?
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Reasons for the high outlet temperature of the lockhopper circulation pump in the Texaco gasifier
I can’t figure it out; the temperature of the lock cylinder is normal
The outlet temperature of the lock-hopper circulation pump is too high
Check according to the process: 1. Is it caused by a high temperature at the pump inlet? 2. Has hot water from elsewhere in the process leaked in (such as seal water)? 3. Is the pump operating normally (current, outlet pressure, shaft temperature, vibration, etc.)?
This is very simple; the reasons are 1, slag in the vaporization furnace. 2. Leakage inside the slag locking valve or punching valve. These can be easily determined through furnace operation and hopper operation
It is very likely that the slag at the bottom of the vaporizer cone is partially blocked; after slag discharge through the lockhopper, on-site checks can be carried out to assess factors such as any significant changes in the amount of slag removed by the slag skimmer, as well as any changes in the pressure difference across the lockhopper.
Scrap has accumulated on the upper part of the lock hopper. Either there is a leak in the circulation pipeline,
Check the amount of seal water used by the lock hopper circulation pump as well as the temperature of that seal water; also calibrate the outlet temperature gauge using instruments