Semi Kestner is a long tube rising film vertical type Evaporator with internal catchall for entraining vapor separation.
We offer semi – Kestner of tube length 4 Metres. To 6 Metres.
ADVANTAGES:
- Less space required due to long tube length
- Capacity increases by 15 – 20% Higher heat transfer & High velocity Of Juice
- Cost Reduction
- Less inversion losses because of less Retention time of juice at high Temperature
- High bricks of syrup
- Less steam quantity is required and Gives high vapour pressure, hence Vapour can bleed to pan, juice Heaters & Evaporator set
- Design Features:
- Calendria can be designed with min. 4.0 Mtrs. Long tubes up to 6.0 Mtrs. Long tube as per customers requirement & availability of exhaust back pressure of power house turbine
- Calendria is designed by keeping sufficient annular space & to give the tangential steam entry of exhaust and non-condensable gasses are taken out from centre
- Effective juice distribution by juice coil & Flushing of juice
- Umbrella above top tube plate is given to avoid carry over juice particles through vapour, Polly- baffle catcher also provided to avoid juice entrapment
- A rising film or vertical long tube evaporator is a type of evaporator that is essentially a vertical shell and tube heat exchanger.
- The liquid being evaporated is fed from the bottom into long tubes and heated with steam condensing on the outside of the tube from the shell side.
- This is to produce steam and vapour within the tube bringing the liquid inside to a boil.
- The vapour produced then presses the liquid against the walls of the tubes and causes the ascending force of this liquid. As more vapour is formed, the centre of the tube will have a higher velocity which forces the remaining liquid against the tube wall forming a thin film which moves upwards. This phenomenon of the rising film gives the evaporator its name.
- Semi Kestner calandria is of ASTM A516 Grade 60 material welded construction and consists of various parts top & bottom tube plate, steam jacket, down take shell. The tubes will be arranged on diamond pitch.
- In Calandria, there are several connections for steam inlet, safety, condensate outlet, Water inlet, and non-condensable gases outlet. Sight and Light Glasses will also be provided.
APPLICATION
Juice concentration and food processing: - The food industry requires handling of delicate products that are sensitive to high temperature for long periods of time. Rising film evaporators can operate quickly and efficiently enough to avoid having to expose the product to high temperatures which may damage or undermine its quality. Hence, they are suitable to use as concentrators for juices, milk and other dairy products which are products that require delicate handling in the food industry.
Semi Kestner is a long tube rising film vertical type Evaporator with internal catchall for entraining vapor separation.
We offer semi – Kestner of tube length 4 Mtrs. To 6 Mtrs.