Alfa Laval Compabloc Plate Heat Exchanger CP40

Ensure chemical cleaning is carried out by authorized and qualified personnel.

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

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

Select the type of deposit and corresponding cleaning agent

Check suitability of cleaning protocol with materials of the Compabloc.

Ensure not to use hydrochloric acid or substances containing chlorides.

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

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

Refer to Appendix 1 for panel weights

Use welded or screwed lifting lugs to lift panels safely

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 detailed analysis for possible internal leakage

Is there a variation in pressure drop indicating performance loss?

Is cleaning of the heat exchanger required to remove fouling?

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

Ensure the Compabloc is empty before opening.

Collect remaining fluid to prevent environmental pollution.

Are both circuits completely drained?

Are both circuits not pressurized and drains open?

Mark panels with identification symbols for correct re-installation.

Ensure panel is secured and cannot fall when unscrewed.

Fix the Compabloc to the floor to prevent tilting during dismantling.