How Green Spiral type 2 for biphasic applications works ?

✳️ GREEN SPIRAL™ TYPE 2 - BIPHASIC APPLICATIONS
The vapour circulates, cross flow, in a fully opened channel,with negligible pressure drop and the coolant circulates in a closed spiral channel. The fluid to evaporate circulates in an adjusted channel gap, fully opened, that allows working with fouling fluids.

✳️ GREEN SPIRAL™ TYPE 2 - BIPHASIC APPLICATIONS - COLUMN
The vapour circulates, cross flow, in a fully opened channel, with negligible pressure drop and the coolant circulates in a closed spiral channel. The column is made of several spiral heat exchangers welded in series in the same shell to achieve large condensing duties. Its is perfectly suitable for vacuum condensation with negligible pressure drop.


Some benefits of Nexson spiral plate heat exchanger type 2 :


▶️ Negligible pressure drop
Thanks to the cross flow on the steam / vapour side there is nearly no pressure drop (we are in a range of 0.1 kpa)


▶️ High vapour/steam flow rate


▶️ Condensation under vacuum

With a very low pressure drop, this allows spiral heat exchangers to process under complete vacuum conditions.


▶️ Low maintenance/operating/installation costs

Nexson spiral heat exchangers are designed to maximize heat transfer surface. They can be set up vertically or horizontally with no need for complex installation. In addition maintenance costs are very limited.


▶️ Can be column mounted

Spiral heat exchangers can be directly mounted at the top of the distillation column / reactor without any supporting system


▶️ Easy access for inspection and cleaning

Able to work in extreme conditions of pressure (FV to more than 80 barg) and temperature (-200°C to 500°C), this single channel heat exchanger, with self-cleaning effect, has become the compact alternative to the shell & tube exchangers. Some features :