Plate Heat Exchanger (PHE)

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Presentation transcript:

Plate Heat Exchanger (PHE) 9/2003

Plate Heat Exchanger (PHE) PHE – Main Components Carrying Bar Frame Plate Pressure Plate Tightening Bolts Plate with gasket 9/2003

Plate Components Summary Suspension Inlet / outlet Passing through Leak chamber Distribution zone Sealing Main heat transfer area Cold formed in single step hydraulic pressing (up to 40000 tons) 9/2003

Click animation to play again Plate Heat Exchanger In Hot medium Cold medium Out Hot medium Cold medium Click animation to play again 9/2003

9/2003

Thermal length - plates & channels L: Low theta H: High theta We have two plate corrugations (L and H) These form three different channels (L, M and H) Low turbulence & pressure drop, good “U” value and wall shear Medium turbulence & pressure drop - better “U” value and higher wall shear High turbulence & pressure drop – best “U” Value and highest wall shear L + L = L channels L + H = M channels H + H = H channels 9/2003

Minimising Fouling Through Design Consider the fluids physical properties, size, quantity and characteristics of particles Number & size of plates are determined by flow rate, physical properties, pressure drop & temperature program High shear and turbulent flow help minimize fouling 9/2003

Gasket - Profile and Gasket Groove Alfa Laval Profile Higher sealing pressure Groove Full support to gasket The difference is life time and reliability 9/2003

PHE Assembly Process 9/2003