Plate-fin heat exchangers – Design variantsLinde Engineering’s plate-fin heat exchangers (PFHEs) come in a number of different design variants, providing the perfect solution for a wide range of requirements.

Plate-fin heat exchangers play a key role in many different industries. We offer a range of different designs for various cryogenic applications.

A single PFHE- blocks comprises the Brazed core, Stub ends and Flanges.

Benefits:

• Very compact design 
• Low weight 
• Small possible temperature differences 
• Highly efficient heat transfer 
• Low pressure drops

A piped PFHE system comprises several exchanger blocks that are assembled and installed in a transport frame with support beams. Each battery of blocks is insulated on site. 

Benefits: 

• Handling of large flowrates 
• Optimised configuration for proper flow distribution 
• Flanged terminations for time effective installation at site

A coldbox covers several exchangers, vessels, piping, instrumentation and valves installed in a carbon steel compartment. 

Benefits: 

• Cost-effective solution 
• Perlite filling (insulation) 
• Supplied as a turnkey packaged unit 
• Time effective installation at site

A block-in-shell comprises one or more heat exchanger blocks installed in a shell instead of a tube bundle. This is a highly efficient and cost-effective alternative to standard shell-and-tube heat exchangers. 

Benefits: 

• Tighter approach temperatures 
• Smaller size and weight 
• Lower installation costs 
• Reduced operating costs due to lower energy consumption