Falling Film Evaporator

A Falling Film Evaporator is an industrial heat exchanger used for concentrating solutions, particularly those containing heat-sensitive components. It operates by allowing a liquid film to flow downward through vertical tubes or plates under the influence of gravity, while condensing steam transfers heat through the heating surface.

Falling Film Evaporators are suitable for separating volatile and non-volatile components, especially when the feed has low viscosity and a low tendency for fouling. Industries use them for applications such as yeast extract concentration, gelatin manufacturing, and tea and coffee extract processing.

 

Able Engineers Private Limited, also known as Able Engineering, manufactures Falling Film Evaporators for Herbal Extraction Plants and Phytochemical Plants. Our evaporators use vacuum operation and short product residence time to process heat-sensitive materials while helping preserve their organoleptic properties and minimize unwanted secondary reactions.

 

Working Principle of Falling Film Evaporator

 

The process begins when the feed enters the evaporator through a specially designed liquid distribution system. This distributor spreads the liquid uniformly across the tubes or plates.

 

Next, the liquid flows downward as a continuous thin film along the vertical heating surface under gravity. Meanwhile, condensing steam transfers heat through the tube or plate walls, causing the volatile components to evaporate.

 

Furthermore, vacuum operation lowers the boiling temperature of the product, making the evaporator suitable for heat-sensitive materials. The vapour and concentrated liquid then move towards their respective outlets for further processing or collection.

Features of Falling Film Evaporator

• Vertical tube or plate arrangement for efficient heat transfer
• Special liquid distribution system for uniform feed distribution
• Continuous thin film formation along the heating surface
• Gravity-driven downward flow of the product
• Vacuum operation for processing heat-sensitive materials
• Short product residence time to minimize thermal exposure
• Suitable for low-viscosity liquids
• Low tendency for fouling under suitable operating conditions
• Designed for continuous evaporation and concentration

Applications of Falling Film Evaporator

 

Falling Film Evaporators are widely used in industries that require efficient concentration of liquids and heat-sensitive products.

• Herbal Extraction Industry: Concentration of herbal extracts and liquid botanical products
• Phytochemical Industry: Concentration and processing of phytochemical extracts
• Pharmaceutical Industry: Concentration of heat-sensitive pharmaceutical solutions
• Food Processing Industry: Concentration of yeast extracts, tea extracts, and coffee extracts
• Gelatin Industry: Concentration and processing during gelatin manufacturing
• Nutraceutical Industry: Concentration of suitable nutritional and botanical formulations

Technical Specifications of Falling Film Evaporator

 

Parameter	Specification
Equipment Name	Falling Film Evaporator
Equipment Type	Heat Exchanger
Operation	Continuous
Film Formation	Gravity-Driven
Heating Medium	Condensing Steam
Heating Surface	Vertical Tubes / Plates
Operating Mode	Vacuum / As per requirement
Feed Characteristics	Low Viscosity
Application	Evaporation and Concentration
Capacity	As per process requirements
Design	Customized

Capacity, operating temperature, vacuum level, material of construction, and other specifications can be customized according to product characteristics and process requirements.

 

Advantages

• Gentle Product Processing: Vacuum operation helps reduce the boiling temperature of heat-sensitive materials.
• Short Residence Time: Minimizes prolonged exposure to heat and helps preserve product quality.
• Efficient Heat Transfer: Thin film formation provides effective contact with the heating surface.
• Uniform Liquid Distribution: A specially designed distributor ensures uniform flow across the tubes.
• Continuous Operation: Supports uninterrupted evaporation and concentration processes.
• Reduced Fouling: Suitable for products with low viscosity and a low tendency for fouling.
• Preservation of Product Properties: Gentle processing helps maintain organoleptic characteristics.
• Versatile Applications: Suitable for herbal extracts, phytochemical solutions, food ingredients, and other heat-sensitive products.

Falling Film Evaporator Manufacturer in India

 

Able Engineers Private Limited, also known as Able Engineering, is a manufacturer and supplier of Falling Film Evaporators in India. We design and manufacture industrial evaporation equipment for concentrating heat-sensitive solutions and low-viscosity products.

 

Our Falling Film Evaporators serve Herbal Extraction Plants, Phytochemical Plants, Food Processing Industries, and other industrial applications requiring efficient and gentle concentration.

 

Additionally, we provide customized evaporation systems and turnkey solutions according to specific process conditions, production capacities, and plant requirements.

 

Contact Able Engineers Private Limited for customized Falling Film Evaporator solutions for your industrial processing needs.