On the sea trial of our semi-submersible platform the intake filter of starting air compressor was melt as shown in the picture,the joint between filter and cylinder was totally melt and resulted in the drop of the filter.
After checking the filter we found that the metal seal was also melt as shown in the picture below.
We need to find out the reason for why the filter was broken,the metal O-ring for this reciprocating compressor was used to seal the high pressure gas from the filter,when it was fault,compressed air with high pressure and high temperature came out of the filter through the joint,which made it reached its melting point and finally got melt,further more,the melt metal continued flowing to the cylinder of the compressor while the compressor was running,which was solidified after the compressor was stopped and became cold,it would lead to further damage as it also happened to this compressor,the piston scraping occured,picture shown below.
That reminds people of when the filter is melt you have to check not only the O-ring,but also whether or not the liquid metal has entered into the space between the cylinder and piston.
This fault of reciprocating compressor is commonly found on this type of compressor since I’d came with the same issue in another semi drilling platform,and lucky me that we still have the other three compressors working normally,the engine can still be started.
All above information is from website.Ijin Marine Limited is only searching and posting them.We are a worldwide marine service company in Shanghai,China.Pls contact us if you need any ship repairing,engine repair,underwater hull cleaning ,etc in any countries on the earth.
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