ROTATION-PERCUSSION EVAPORATOR AND METHOD OF VACUUM TRANSFER OF COMPLEX LIQUIDS ON ITS BASIS Russian patent published in 2017 - IPC C10G7/06 B01D3/10 C02F1/04 C11B9/02 

FIELD: machine engineering.

SUBSTANCE: rotation-percussion evaporator for the evaporation of liquids, such as crude oil and petroleum products, consists of a sealed chamber, an evaporation of the spray dispenser, providing diffusion supplied thereto prepared liquid submitted in the below evaporation chamber with low-flow, steam inlet connected to the device for pumping steam, creating a preset vacuum in the evaporator chamber, and an accumulator of non-evaporated liquid. The evaporator is characterised in that the evaporator chamber has a crown of impact blades on the blade wheel, rotating at high speed on the shaft, introduced into the vaporisation chamber through the seal and driven by the drive, so that the droplet flow of the liquid from the spray dispenser, partially evaporating, moves towards the rotating percussion blades, which cut off small drops of droplets from it and strike powerful blows on them. Percussion blades have a sufficiently large surface area and are tilted to the plane of rotation, so as to maximize the intensity of the applied strokes, resulting in part of the liquid is sprayed and evaporates, while the other spreads on a surface percussion blades as dynamic films which, crushing and evaporating, flow down to the edges of the percussion blades, acquiring the velocity of percussion blades, break off from the edges of the percussion blades, disintegrate and continue to move, spraying and evaporating, towards the walls of the evaporation chamber, experience powerful impacts when they collide with the walls of the evaporation chamber, after which they partially evaporate and spread on the inner surface of the evaporation chamber in the form of a dynamic film that evaporates and flows downwards where the accumulator of unevaporated liquid is located, while the formed vapor is withdrawn through the intake using a steam evacuation device, for example a vacuum pump. A method of vacuum distillation of complex liquids based on a rotary-impact evaporator is also claimed.

EFFECT: rotary percussive evaporator can effectively evaporate liquid possessing an unfavourable for traditional evaporation of thermophysical properties, as well as liquids with useful components affected thermochemical reactions and coking, direct heat input during the evaporation in the rotary percussive evaporator is not provided and not needed.

4 cl, 3 dwg