1. Structure of Brazed Plate Heat Exchanger
BHE consists of an S frame, heat transfer plates and E-frame as shown in the structural diagram on
the below. These components are brazed by copper and nickel materials.
●
BHE Structure
No.
Part Name
Comment
Outlet/Inlet nozzle
S frame
E frame
Heat transfer plate
Brazed material
Name Plate label
Manufacturing
number
Shapes vary according to application.
Shapes vary according to application.
Some models do not have an S frame and/or E frame.
Cannot be disassembled due to brazing.
Can be selected from copper or nickel materials.
Indication of BHE model and specifications
Serial number of BHE
Some models indicate this on E frame or plate.
Brazed copper and nickel have the following characteristics.
●
Copper Brazed
Copper is an efficient bonding method for many industries like automotive and refrigeration.
Copper brazed heat exchanger is used for evaporator, condenser of refrigerant in the
compression refrigeration cycle and heater of hot water supply.
●
Nickel Brazed
Nickel has special feature for corrosion resistance.
Nickel brazed heat exchanger is used for such as aqueous solutions of lithium bromide of
absorption chillers, fluid of ammonia chillers, and for purified water with a contamination problem
caused by elution of copper ions.
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