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re: TPC Plant in Port Neches Explosion: Port Neches, Groves, and parts of Nederland Evacuated
Posted on 11/28/19 at 7:56 am to double d
Posted on 11/28/19 at 7:56 am to double d
quote:
Deluge piping on the spheres needs to be flowing non stop.
Also
The issue with petroleum fires is that if the product does not flash off at atmospheric pressure and temps, it remains a liquid and will float on water.
Flooding the area with water can allow the spread of fire throughout the entire unit if the drains are already maxed out.
1
Posted on 11/28/19 at 9:32 am to RemyLeBeau
quote:
The issue with petroleum fires is that if the product does not flash off at atmospheric pressure and temps, it remains a liquid and will float on water.
Flooding the area with water can allow the spread of fire throughout the entire unit if the drains are already maxed out.
Sphere tanks are used for components that would be a vapor at room temp and pressure. The tanks are at some positive pressure to condense the vapor into a liquid.
In regards to the pressure discussions, it looks like each sphere has 2 relief valves on top with the exit of them pointed upward. This is common for larger tanks that aren't directly in the operating area, and if sized correctly they should be able to safely relieve the pressure buildup that would be caused by a fire. Unfortunately, that means the contents would be sent into the air.
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