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What is wiped film evaporator?

2019-08-28 22:19:22

What is wiped film evaporator?


Wiped film evaporator is a new type of high-efficiency evaporator which is through a rotary wiper to make a film, and has a high-speed flow, high heat transfer efficiency, short residence time (about 10~50S), and can be used for falling film evaporation under vacuum conditions.


Stainless steel wiped film evaporator is mainly used for evaporation concentration, desolvation, stripping, reaction, degassing, deodorization (gas) taste, etc.


wiped film evaporator


The wiped film evaporator is popular used in hemp distillation industry, mainly because it has the following advantages:

1. Small vacuum pressure drop

The vaporized gas of the material is sent from the heating surface to the external condenser, and there is a certain pressure difference. Compared with the general evaporator, the scraper-type thin film evaporator has a large gas traversing space, and the pressure inside the evaporator and inside the condenser are almost equal, so the pressure drop is small.

2. Low operating temperature

The evaporation process of the wiped film evaporator can be maintained under a high vacuum degree. Due to the increase of vacuum degree, the corresponding boiling point of material is rapidly reduced, so that the operation can be carried out at a lower temperature to reduce the thermal decomposition of the hemp material.

3. Short heating time

Wiped film evaporator is particularly suitable for the evaporation of heat sensitive materials because of its unique structure, the wiper has a pumping action, so that the residence time of the material in the evaporator is very short, due to the high speed of the film on the heated evaporator Turbulence prevents the product from staying on the evaporator surface.

4. High evaporation rate

The decrease of the boiling point of the material increases the temperature difference of the same heat medium, and the function of the wiper device reduces the thickness of the liquid film which is in a turbulent state and reduces the thermal resistance.

At the same time, in this process, the material is inhibited from forming on the heating surface, and the scale is accompanied by good heat exchange, thereby improving the total heat transfer coefficient of the wiped film evaporator.

5. Large operational flexibility

The unique properties of the wiped film evaporator make it particularly suitable for the treatment of heat sensitive and materials requiring smooth evaporation, high viscosity and increased viscosity with increasing concentration, and the evaporation process can also evaporate smoothly.


wiped film evaporator supplier


If you're interested in wiped film evaporator, welcome contact info@toptionlab.com to get free technical support, quote price now!


 










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