The issue of high liquid level in the gasifier
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As the title suggests, after replacing the burner in our GE gasification furnace and putting it into operation, the liquid level in the furnace remains around 90% and does not drop. The syngas outlet temperature, the temperature of the support brick plates, the amount of water used for rapid cooling, and the amount of soot discharged are all within normal ranges. Has anyone in the industry encountered this issue? Please help provide an answer.
First, check whether the liquid level reading is incorrect – with such a high level, aren’t there any waters in your syngas?
Is it the same for one unit or all three units? Did the instruments react during the shutdown for maintenance?
It has been confirmed that it is not a problem with the level gauge.
Out of our 14 furnaces, only this one is like this; it’s not a problem with the instruments
Has the sealed flushing water been checked?
The downcomer of the furnace has been punctured, but the temperature at the syngas outlet is not high
Thank you for the positive feedback. Do you have any photos of the downcomer burning through? What is the size of the burned-through area, and where is it located?
The pressure is too low; the pressure difference between the upper and lower flanges is not consistent with that during normal operation. In one sentence, it can be said that pressure affects temperature, and temperature affects density. Due to the difference in density, the liquid level appears high; increasing the pressure will resolve this issue
“The outlet temperature, the temperature of the brick support plate, the amount of water used for rapid cooling, and the amount of black sludge discharged are all normal; therefore, it’s more likely that the problem lies with the level gauge. The possibility of the measurement hole being blocked cannot be ruled out.