TEMPORARY STRAINER CLOGGING

Temporary strainer schematic

FEM analysis results

LocationItaly

ApplicationRefinery

Compressor TypeCentrifugal Compressor

ServiceMild hydrocracking make-up compressor

Power900 kW

Disch. Pressure90 bara

Challenge

Δp on a temporary strainer quickly rose to ~1.3 bar

Customer could not stop production before scheduled maintenance

Solution

Finite element analysis and a buckling analysis
Maximum sustainable pressure drop ~ 4 bar

Result

Maintenance executed after one year, as originally planned

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