Alfa Laval Compabloc Plate Heat Exchanger CP120

Ensure chemical cleaning is performed by authorized and qualified personnel.

Take all necessary protection and precautions for health, safety, and environment regarding chemicals.

Select the type of deposit and corresponding cleaning agent

Ensure compatibility of cleaning agents with materials of construction such as metal and gaskets.

Check suitability of cleaning protocol with materials of the Compabloc.

Avoid using hydrochloric acid or substances containing chlorides.

Use reverse flow direction (back flushing mode) for optimal results.

Dismantle the baffle cage if inspection or heavy mechanical cleaning is required after panel removal.

Locate and record baffle positions before dismantling for correct reassembly.

Pull out the ladder formed by uprights and baffle plates.

Remove triangular PTFE cord gaskets from longitudinal girder lining.

Remove the complete baffle cage.

Clean the triangular groove of the longitudinal girder lining and remove grease.

Check external elements of the heat exchanger

Inspect all welds for cracks, defects, and corrosion

Check painting for local absence of coating and blistering

Proceed with internal examination?

Estimate condition of internal elements

Supervision of Key Process Parameters

Record the temperature of the heat exchanger

Record the pressure drop across the heat exchanger

Is there any contamination of media observed?

If contamination is observed, describe the analysis for possible internal leakage

Is there any variation in pressure drop?

If pressure drop variation is observed, describe the follow-up actions

Dismantling Procedure for Panels

Progressively loosen the nuts one girder after the other

Loosen bottom nuts one panel after the other

Do not unscrew stud bolts or nuts for girder assembly

Remove panels starting with the highest weight and finish with the lowest weight

Use welded or screwed lifting lugs to lift panels safely

Clean gasket seating surface thoroughly without scratching