Plate Heat Exchanger Construction

Plate heat exchanger components

The components consist of a fixed end plate, connections and a loose pressure plate,

with carrier bars mounted between them. The plates are hung from the top carrier bar.

The carriers bar also serve to position the heat transfer plates. The single plates are pulled

together to form a plate pack by means of tightening bolts.

Gasketed plate heat exchangers are available in standard sizes or can be individually

prepared.

Brazed plate heat exchangers

A brazed plate heat exchanger is small, light and compact. It does not need gaskets.

Instead, it is brazed together using cooper to give a strong, compact construction.

This heat exchanger is especially suitable for pressure up to 50 bar and temperatures

from -196oC to +550oC.

Plate Heat Exchanger Construction

A plate heat exchanger consist of a number of heat transfer plates which are held in place

between a fixed plate and a loose pressure plate to form a complete unit. Each heat

transfer plate has a gasket arrangement which provides two separate channel systems.

The arrangement of the gaskets (field and ring gaskets) results in through flow in single

channels, so that the primary and secondary media are in counter-current flow. The media

cannot be mixed because of the gasket design.

The plates are corrugated, which creates turbulence in the fluids as they flow through the

unit. This turbulence, in association with the ratio of the volume of the media to the size

of heat exchanger, gives an effective heat transfer coefficient.

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