Evaporator flow principle

The channels formed between the corrugated plates and corners are arranged so that the two media flow

through alternate channels, always in opposite directions (counter current flow). The two phase refrigerant

(vapor + liquid) enters the bottom left of the exchanger with a vapor quality depending on the operating

condition of the plant. Evaporation of the liquid phase takes place inside the channels and some degrees of

superheat are always requested, which is the reason why the process is called "dry expansion". In the enclosed

evaporator picture the dark and light blue arrows show the location of the refrigerant connections. The water

(brine)  to be cooled flows counter current in the opposite channel; the dark and light red arrows show the

location of the water (brine) connections.

Standard design

The plate pack is covered by cover plates. Connections are located in the front or rear cover plate. The channel

plates are corrugated to improve heat transfer efficiency and to make them rigid.

Dual system

Standard materials

Cover plates: Stainless steel AISI 316

Connections: Stainless steel AISI 316

Plates: Stainless steel AISI 316

Brazing material: Copper

Particulars required for quotation

To enable Baode's representative to make a specific quotation, enquiries should be accompanied by the following

particulars:

- flow rates or heat load required

- temperature program

- physical properties of liquids in question

- desired working pressure

- maximum permitted pressure drop

Short delivery time.

High quality

Reasonable price

Customer made

Know-how design and customer support

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