Aug 01, 2011 Heat transfer for single component falling film evaporation has been investigated in a stainless steel single tube falling film evaporator. The tube had a heated length of 2,500 mm. Propylene glycol and cyclohexanol have been used as evaporating media. Liquid film running down the tube, is formed on the inner side of the tube.
More details
BT-16 Falling Film Evaporation of Ultra-Viscous Fluids. Phase III of Lehigh University’s falling film evaporation research focused on adding ultra-viscous film data to the existing database. The objective was to measure heat transfer coefficients for evaporating falling films with polymer solution viscosities up to 2419 lb/hr ft (1000 mPa s).
More details
Climbing film evaporators are not suitable for the evaporation of viscous liquids. In the falling film evaporator, the liquid is fed to the top of a number of long heated tubes. Since gravity assists flow down the tube, this arrangement is better suited to the evaporation of moderately viscous liquids.
More details
Falling Film Evaporator Design Our falling film evaporator is the simplest and most commonly used type of film evaporator. The liquid flows as a thin film on the inside of heated vertical tubes, driv-en by gravity. The resulting vapor normally flows cocurrently with the liquid, in the centre of the tubes. A full evaporation stage consists of the
More details
Falling Film Evaporator Features. Evaporation capacity: From 500Kg/h to 80T/h. It can be also used together with the coercive circulation evaporator and crystallizer to deal with the concentration and product crystallization of high viscous and easy scaled material. It is characterized by high efficiency of heat conduction, low power ...
More details
Falling film evaporator is suitable for high viscous liquids because the flow of vapor film assisted by gravity. The liquid is not over heated during passage and heat transfer coefficents are high even at low boiling temperature. Highly acidic and corrosive feeds can be concentrated using impervious graphite tubes rubber lined vapor heads.
More details
FALLING FILM EVAPORATOR PLATES EVAPORATOR FORCED CIRCULATION EVAPORATOR THIN FILM EVAPORATOR Product viscosity Very Low Low Medium-high Very high Residence time 1 min ~ 2 min ~ 25 min 1 min Heat transfer efficiency high high medium high Evaporator choosing criteria: product type (e.g. heat sensitivity, colour stability, etc..)
More details
Falling Film Evaporator Product Application. Liquids too viscous for natural circulation. Liquids where retention time must be minimized. Heat-sensitive liquids or when excess temperature is critical. Liquids requiring limited temperature difference. Falling Film Evaporator Application Examples. Caustic Soda; Pectin Solutions; Sorbitol; Fruit Juices
More details
Falling film evaporators are used extensively in chemical process industry, food and paper industry. Due to the absence of static static head effect caused by liquid column as in other types of evaporators, evaporation can take place at very small effective mean temperature differences. The temperature diffference are tipically between 3 - 8C.
More details
Falling film evaporators Vertical shell-and-tube heat exchanger, with integrated wrap-around, monobloc-type or laterally arranged separator Functional principle The liquid to be concentrated is fed to the top of the heating tubes and distributed so that it flows down as a thin film on the inside of the tube walls.
More details
Falling-Film Evaporator. The long-tube falling-film evaporator is a variant of the long-tube rising film evaporator. Here, the equipment is kept in an inverted position so that the tubular heat exchanger is at the top of the liquid separator area. ... fouling, viscous, and high-boiling liquids. Some of the common issues with tubular evaporators ...
More details
Feb 02, 2017 Operation of falling film evaporator involving viscous liquid In this thesis, the working principles of falling film evaporator used in dairy industries in relation to the evaporation of skim milk have been explored with a focus on the effect of milk solids content.
More details
Operation of falling film evaporator involving viscous liquid. Feb 02, 2017 A 2m steam-heated pilot evaporator was designed and constructed to commercial grade based on a falling film evaporator design. This pilot evaporator is able to operate under vacuum conditions (up to -85kPa gauge) in both shell and tube side so as to mimic the operation ...
More details
Our falling film evaporator is specifically suited to process your products with a low viscosity and a low tendency for fouling. It consists of a tube bundle crowned by a proprietary liquid distribution device that ensures an efficient and uniform distribution of the liquid to all the tubes.
More details
The falling film evaporation technology has several economic and industrial benefits. The capacity of these units can range from 10 k/hr to more than 100 t/hr. Smaller footprint. Falling film evaporators are installed vertically installed and have a small footprint. In addition, the separator can be easily integrated into the evaporator to further reduce the floor area used.
More details
The falling film evaporator and the thin film evaporator might seem like they are two strips from the same brush. However, there are actually quite a few differences between the two. First of all, the thin film evaporator has long been well-respected among people in the industry.
More details
The Falling Film Evaporator, with capacity ranges of up to 150t/h and relatively small floor space requirement, is the most widely used evaporator in the process industry. Particularly well suited for temperature-sensitive products, liquids containing small quantities of solids and with a low to moderate tendency to form incrustations.
More details
Vaporizes viscous materials more readily than a natural circulation evaporation as vaporization takes place from a thin film; Can be used advantageously with Thermal Re-compression; Low power requirements; Low holding volume; Can be configured as a counter current falling film for stripping application
More details48-hour idling test machine before leaving the factory. You can take the materials to the factory test machine. We will customize the solution according to your needs.
HeadOffice Address
Zhengzhou, China
Equipment purchase
Get a Quick Quote
Send Us Email
[email protected]
Copyright © 2022 Jaunpur Machinery Company All rights reserved sitemap