Seeking advice on the unpleasant odor at the sealing surface of a sulfur-sealed tank
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Unpleasant odors are a common issue in sulfur plants, and poor sealing of the observation ports on sulfur seal tanks is also a significant source of such odors. I would like to ask fellow sailors: are there any good ways to seal sulfur-sealed tanks in order to eliminate unpleasant odors? We previously tried using polytetrafluoroethylene gaskets on the sealing surface, but these gaskets deform easily at high temperatures and still fail to provide proper sealing.
We have a similar phenomenon here too; we once thought about making one ourselves using thick rubber, but gave up for fear that inspections would find it non-compliant.
The liquid sulfur observation port of the sulfur-sealed tank can be removed.
What is the basis for you doing this?
In current practical applications, many sulfur-sealing tanks do not have observation ports; it is sufficient to clean the filtration screens used for sulfur sealing on a regular basis, as there is no need to check the flow of liquid sulfur every day. After adding an observation port with a sulfur seal, sealing becomes an issue; hydrogen sulfide is dissolved in liquid sulfur, and if the sealing problem is not properly addressed, an unpleasant odor will definitely appear.
Although it is the reality, there are still ways to solve such problems!
It’s still unsettling not being able to see the flow of liquid sulfur visually.
Thick rubber pads should help alleviate the issue, but high temperatures over time can cause them to age, so the pads need to be replaced regularly. This shouldn’t involve standards, right? After all, in areas at normal pressure, routine examinations generally do not focus on these areas.