Introduction and characteristics of wiped film evaporator

The wiped film evaporator is a new type of evaporator that is forced to form a film through a rotating film wiper, and flows at a high speed, has high heat transfer efficiency, short residence time, and can perform falling film evaporation under vacuum conditions.
The material enters the evaporator radially from the top of the heating zone; it is distributed to the heating wall of the evaporator through the distributor, and then the rotating film scraper scrapes the material continuously and uniformly on the heating surface into a liquid film of uniform thickness and spirals. Push down. In this process, the rotating film wiper ensures that the continuous and uniform liquid film produces high-speed turbulence, and prevents the liquid film from coking and scaling on the heating surface, thereby increasing the overall transfer coefficient. The light component is evaporated to form a steam flow which rises through the vapor-liquid separator to the external condenser directly connected to the evaporator; the recombined component is discharged from the cone at the bottom of the evaporator.
The wiped film evaporator is a unique distributor not only to evenly pour the material to the inner wall of the evaporator, to prevent the material from splashing into the evaporator and to spray the steam flow, but also to prevent the newly entered material from flashing here, which is beneficial to foam Elimination, the material can only evaporate along the heating surface.
The upper part of the wiped film evaporator is equipped with a centrifugal separator designed according to the characteristics of the material to separate the liquid droplets in the rising steam flow and return to the distributor.