ViscoVap
The Alfa Laval ViscoVap tubular evaporator concentrates highly viscous, heat-sensitive liquids with fibre and solid contents under low-temperature vacuum conditions. Compact and efficient, it is more resistant to fouling due to high flow rates, high heat transfer efficiency, and a self-cleaning effect. This reduces energy, water, cleaning media costs while generating less effluent. Perfect for concentrating foodstuffs like fruit and vegetable purées as well as finishing effluent concentration.
Concentrate on quality and yield of high-viscosity, heat-sensitive products at low temperature and high heat transfer efficiency
- Preserves the quality of highly viscous, heat-sensitive products
- Minimal fouling risks due high velocity, high shear stress, smooth heat transfer surfaces, and self-cleaning effect
- More uptime due to reliable, robust, self-cleaning construction
- Versatile, modular design makes it easy to process various products with similar physical properties and adapt capacity as needed
- High yields due to long running times – ideal for uninterrupted processing of fresh produce during harvest season
Enhance product quality, cut costs and boost yield by concentrating highly viscous, heat-sensitive liquids containing fibres and solids with the Alfa Laval ViscoVap forced circulation evaporator.
Increase uptime, thanks to smooth heating surfaces that promote high product flow rate with minimal fouling through the shell-and-tube heat exchanger.
Applications of forced circulation evaporator
- Concentration of highly viscous, heat-sensitive or shear-thinning media containing fibres and large particles that are prone to fouling
- Final effluent concentration or finishing of the effluent
After finalizing on our requirement for the new bio-methanated spent wash evaporator plant, we discussed our vision of achieving zero liquid discharge with Alfa Laval experts. Alfa Laval came up with the innovative feed degasification and condensate stripping systems. – Mr. H.K.Yadava, General Manager – Distillery, Harinagar Sugar Mills, Bihar, India (Zero liquid discharge from distillery wastewater)
The system has been up and running now for almost five years, and our early worries about cleaning frequency have proven groundless. In addition to reliability, savings due to less frequent cleaning is a major advantage. – Mr. Sanjay Chopra, Vice President, Jagatjit Industries Ltd.
Service
Food system services
Alfa Laval Food system services help extend the performance of your food systems by maximizing the performance of your processes. This enables you to:
- Continually improve your operations to maintain competitive advantage
- Focus on uptime, optimization and availability
- Maximize return on investment throughout the life cycle of your food systems
Learn more about our service offer for food systems
Flexible configuration and integration
Thanks to its modular design, ViscoVap adapts easily to changing production needs. You can scale capacity over time and integrate it with other Alfa Laval systems. Connecting ViscoVap to the Alfa Laval AromaVap plate evaporator lets you concentrate juice, herbal extracts, or aroma compounds for reintegration into the final product or for separate storage and later reuse.
Typical applications for forced circulation evaporators
- Concentration of highly viscous, heat-sensitive, or shear-thinning liquids containing fibres and large particles that are prone to fouling
- Final concentration or finishing of the effluent
How the ViscoVap forced circulation evaporator works
Based on the forced circulation evaporator working principle, ViscoVap features one or more recirculating loops in single-stage or multi-effect configuration. The process liquid flows at high velocity through the inner tubes of the shell-and-tube heat exchanger, while steam or hot water heats the product from the shell side.
This high flow rate generates high turbulence and shear stress, enhancing heat transfer, reducing fouling, and creating a self-cleaning effect. By recirculating part of the concentrate back to the feed, the system ensures consistent processing of sticky, viscous fluids with particles and fibres. After heating, the product enters a vapour-liquid separator, where flash evaporation removes water.
You might also be interested in...
Explore our range of evaporators
Alfa Laval offers a wide range of evaporation systems from plate evaporators, and rising film evaporators to tubular evaporators and falling film evaporators. Find out what would work for your evaporation needs.
