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T45 - Plate heat exchanger0 pages
T45
T45-M
Plate heat exchanger
Applications
General heating and cooling duties.
Standard design
The plate heat exchanger consists of a pack of corrugated
metal plates with port holes for the passage of the two fluids
between which heat transfer will take place.
The plate pack is assembled between a fixed frame plate
and a movable pressure plate and compressed by tightening
bolts. The plates are fitted with gaskets, which seal the
interplate channels and direct the fluid into alternate channels.
The number of plates is determined by the flow rate, physical
properties of the fluids, pressure drop and temperature program.
The plate corrugations promote fluid turbulence and support
the plates against differential pressure.
The frame plate and the pressure plate are suspended from
an upper carrying bar and located by a lower guiding bar,
both of which are fixed to a support column.
Connections are located in the frame plate or, if either or both
fluids make more than a single pass within the unit, in the
frame and pressure plate.
Working principle
Channels are formed between the plates and the corner ports
are arranged so that the two fluids flow through alternate
channels. The heat is transferred through the plate between
the channels, and complete counter-current flow is created
for highest possible efficiency. The corrugation of the plates
provides the passage between the plates, supports each
plate against the adjacent one and enhances the turbulence,
resulting
in efficient heat transfer.
Flow principle of a plate heat exchanger
