Long Tube Vertical Rising Film Evaporator ◼ A thin film of liquid food is formed on the inside of the long tubes, with steam providing heat transfer from the outside. The vaporizing bubbles of steam cause film of concentrate to rise upwards inside the tubes. Vapor and concentrate are separated, as they exit the top, in a separate chamber
Long Tube Vertical Rising Film Evaporator ◼ A thin film of liquid food is formed on the inside of the long tubes, with steam providing heat transfer from the outside. The vaporizing bubbles of steam cause film of concentrate to rise upwards inside the tubes. Vapor and concentrate are separated, as they exit the top, in a separate chamber
Vapor Steam Product Condensate Feed 7,2 Long-tube vertical-rising film evaporator. figur
Long Tube Vertical Falling Film Evaporator ◼ Using gravity to make liquid flow downwards. Steam condensing on the outside of the tubes causes evaporation of a thin film of product flowing down the inside of the tubes. Product and steam exit the bottom of the tubes together, then are separated
Long Tube Vertical Falling Film Evaporator ◼ Using gravity to make liquid flow downwards. Steam condensing on the outside of the tubes causes evaporation of a thin film of product flowing down the inside of the tubes. Product and steam exit the bottom of the tubes together, then are separated
Feed Steam Vapor Condensate Product 7.3 Long-tube vertical-falling-film evaporator. figure
Steam 目目 J《宽 Product Condensate Feed 7.4 Forced-circulation evaporator. figure