Introduction
Heat sensitive products like vitamins, hormones, enzymes or aromatic substances get adversely affected by way of material degradation due to higher temperature and residence time. This can be avoided if the reactions are carried under vacuum which allows the working temperature to be lowered, and by forming a thin film to reduce residence time, especially in case of liquids of high viscosity, or low thermal conductivity.
For these, GOEL introduces a specially designed range of Evaporators made of Borosilicate Glass. The range varies from laboratory size (80DN) to production plants (300DN).
Construction
The core of the unit is a rotating, fully corrosion resistant wiper system. This has four rows of PTFE wipers. These rows of wipers are divided into vertical segments and each wiper is mounted between two glass rods.
A liquid distributor is located above the wipers. It distributes the medium, fed in through the feed pipe uniformly around the circumference of the evaporator before the medium is finally picked up by the wiper system itself.
The Evaporator has a vapour outlet which can be connected to a descending coil condenser and a receiver.
The drive used for the wiper system is a standard geared-motor with an AC speed regulator. The wiper shaft is sealed by means of a mechanical seal. The evaporator body is constructed as a jacketed pipe. For heating, thermic fluid upto 150 C can be circulated in the jacket.
The unit is designated by the jacketed pipe size. And the capacity of the unit depends on the evaporation rate which in turn depends on the HTA available, the type of heating media, and the evaporation environment i.e. vacuum conditions.
| MODEL | SIZE DN (mm) | HTA(M2) |
|---|---|---|
| WFE3 | 80 | 0.35 |
| WFE4 | 100 | 0.47 |
| WFE6 | 150 | 0.70 |
| WFE9 | 225 | 1.06 |
| WFE12 | 300 | 1.41 |
FAQs
1. What is another name for a wiped film evaporator?
Another name for a wiped film evaporator is a thin film evaporator. Both terms refer to the same type of evaporator that uses a rotating wiper blade to create a thin film of liquid on the inner surface of the evaporator's walls.
The core of the unit is a rotating, fully corrosion resistant wiper system. This has four rows of PTFE wipers. These rows of wipers are divided into vertical segments and each wiper is mounted between two glass rods.
2. What is the cost of wiped film evaporator?
The cost of a wiped film evaporator can vary depending on factors such as size, material, and features. For specific pricing information, it's best to contact us directly.
Goel Scientific Company leverages its extensive expertise in scientific glass fabrication & its proficiency in catering to diverse chemical processing industries to create a state-of-the-art system with several distinct advantage
3. Can the evaporator be customized to fit specific production needs or space constraints?
Yes, the evaporator can be customized to accommodate specific production requirements and space limitations.
4. How does Wiped film work ?
A wiped film evaporation machine consists of three main parts: a feed inlet at the top of the device, rotor blades inside a cylindrical heating jacket, and outlets or discharge nozzles for product concentrate and vapor.
