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Tetra Therm® Aseptic Flex - Indirect UHT treatment

Tetra Therm® Aseptic Flex - Indirect UHT treatment
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Tetra Therm® Aseptic Flex - Indirect UHT treatment - 1

Tetra Therm® Aseptic Flex Indirect UHT treatment Application Tetra Therm® Aseptic Flex is a top-of-the-line processing unit for high-performance continuous indirect UHT treatment. The unit uses a tubular or plate heat exchanger under aseptic conditions to obtain a product that can be stored at ambient temperatures. Tetra Therm Aseptic Flex is suitable for dairy products such as milk, flavoured milk, cream, yoghurt drinks, buffalo milk and formulated dairy products, as well as for other applications such as juice, soy milk, tea and coffee. Tetra Therm Aseptic Flex is available as a stand-alone unit or as part of a complete line solution. Highlights • More efficient CIP – IntelliCIP™ 2.0 – with in-line monitoring of results, thanks to new technology (international patent pending, WO2013092414) • Lower product loss thanks to mix-phase tuning • Lower water consumption thanks to deaerator eco-mode • Reduced utility consumption in pre-sterilization and hibernation • More consistent detergent dosing in balance tank • User-friendly recipe overview • Wide selection of performance-enhancing options • Highest level of indirect UHT performance Working principle The module is fully automated to safeguard aseptic status while in production. The operation is divided into four steps: • Pre-sterilization • Production • AIC (aseptic intermediate cleaning) • CIP (cleaning-in-place) Before production can start, it is necessary to sterilize the aseptic area by circulating pressurized hot water. In the tubular version, the aseptic part is equipped with an internal sterilization loop to minimize energy consumption and start-up time. After sterilization, the unit is cooled to production temperature. Finally, sterile water is circulated through the production unit.

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Tetra Therm® Aseptic Flex - Indirect UHT treatment - 2

Production starts by filling the unit with product via the balance tank. The product displaces the water/product mix to the drain or reject tank. A specially designed balance tank and valve arrangement minimizes the amount of mixed product. • Valves, pipes, fittings When an aseptic tank or filling machine is ready, production can start. The product is regeneratively pre-heated in a Tetra Spiraflo ® tubular heat exchanger, or alternatively in a Tetra Plex® plate heat exchanger, before being homogenized in a Tetra Alex ® homogenizer. Final heating takes place by means of an indirect hot water...

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Tetra Therm® Aseptic Flex - Indirect UHT treatment - 3

Production safety Special product treatment • Closed product balance tank with CIP device • Deaeration module • Conductivity meter for CIP control • Deaeration module with eco-mode for reduced water consumption • Pressure differential measurement • Uninterrupted power supply (UPS) • Air cooling unit with compressor • Sight glass • Coarse strainer • Product revert valve Product information • Digital paperless recorder • Display of water flow meter signal in operator panel • Additional human-machine interface (HMI), type Tetra PlantMaster ME Capacity • Variable capacity 1:3 max. • Variable...

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Tetra Therm® Aseptic Flex - Indirect UHT treatment - 4

Consumption data Approx. consumption data for tubular heat exchanger-based module with product-to-product heat regeneration up to 125°C (CMR>125) (per 1,000 litres of product) • Electrical power (400 V, 50 Hz) • 23 - 60 kW, excluding homogenizer • Rinsing water at 300 kPa (3 bar) • 1,000 - 2,000 L/h during CIP rinsing (depending on heat exchanger size and configuration) • Cooling water at 300 kPa (3 bar), 20°C • 0 - 100 L/h during production (increases with fouling in the unit) • No consumption during pre-sterilization • 500 L/h during cooling • Steam at 700 kPa (7 bar) • 22 kg/h can be...

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