Scraped floor heat exchangers have been used for difficult warmth transfer functions involving viscous fluids or the place fouling is an issue, such as evaporation processes. The commonest kind of scraped floor warmth exchanger (SSHE) makes use of a rotating shaft with blades or augers which scrape the floor of the tube. The popular HRS R Series relies on this approach. However, the design just isn’t optimum for every situation, and so HRS developed the Unicus Series of reciprocating scraped surface warmth exchangers.
The Unicus Series of reciprocating scraped floor heat exchangers is good for viscous merchandise similar to cream and tomato juice, in addition to merchandise containing fruit items or particles.
IT STARTS WITH DESIGN
The HRS Unicus Series is particularly designed to offer the improved warmth transfer of a traditional SSHE, however with a delicate motion to protect the quality and integrity of delicate meals merchandise similar to cheese, yoghurt, ice cream, meat paste, and products containing entire pieces of fruits or vegetables. Over the years, numerous totally different scraper designs have been developed, meaning that each application, from processing curds to heating sauce or pasteurizing fruit compotes could be dealt with in the most efficient yet light way potential. Other functions where the Unicus Series has been helpful embody dealing with meat slurry and mince, and processing yeast-malt extracts.
The hygienic design makes use of a patented stainless-steel scraping mechanism that strikes hydraulically backwards and forwards within every interior tube. The movement performs two key functions: it minimizes potential fouling by keeping the tube wall clean and also creates turbulence inside the material. Together, these actions improve the rate of heat transfer within the material, creating a extremely environment friendly course of that’s ideal for viscous and high fouling supplies.
Since they are controlled individually, the speed of the scrapers can be optimized for a specific product being processed, so that supplies that are vulnerable to shear stress or strain harm (such as lotions and custards) can be handled delicately to prevent damage while still offering excessive ranges of warmth transfer. The Unicus Series has confirmed significantly useful in handling viscous food merchandise where texture and consistency are essential attributes. For instance, some creams or sauces may shear when subjected to extra strain, making them unusable. The Unicus signifies that effective heat transfer may be carried out at low pressures which overcomes these issues.
HRS UNICUS SERIES UP CLOSE
Each Unicus SSHE consists of three components: a hydraulic cylinder and energy pack (although in smaller models a pneumatic cylinder could be supplied instead), a separation chamber to ensure hygiene and preserve product separation from the motor, and the heat exchanger itself. The heat exchanger consists of a selection of tubes, each of which accommodates a stainless-steel rod to which the appropriate scraping parts are fitted. Using a range of food-safe supplies together with Teflon and PEEK (polyether ether ketone), these provide different inside geometry setups in accordance with the appliance, similar to 120-degree scrapers for large particulates and 360-degree scrapers for viscous fluids without particulates.
The Unicus Series can also be fully scalable by growing the shell diameter and including extra inside tubes from a single tube up to eighty in one shell. A key function is the specifically designed seals which separate the inside tube from the separation chamber, tailor-made to the product utility. These seals stop leakage of the product and ensure inner and exterior hygiene. A commonplace range of models for food processing provide heat switch areas from 7 to 107 sq. ft, whereas larger fashions as a lot as almost 1,300 sq. feet may be made for specific makes use of.
EXCELLENCE IN ACTION
pressure gauge weksler ราคา where the Unicus Series excels is in evaporation applications, where the prevention of fouling is particularly important. HRS has a particular version of the Unicus for use in evaporation models where quantity discount of the fabric is important. The scraping action keeps the heat switch surfaces clean in order that Unicus evaporators can concentrate materials to a degree that is unattainable utilizing traditional applied sciences. Unicus evaporators can be used in multi-effect setups or in combination with mechanical vapor recompression.
Matt Hale is worldwide sales and advertising director for HRS Heat Exchangers. Located in Atlanta, Georgia, HRS Heat Exchangers is part of the HRS Group, which operates on the forefront of thermal expertise, providing revolutionary warmth switch solutions worldwide across a various range of industries. With forty years’ expertise within the food and beverage sector, specializing within the design and manufacture of an intensive range of turnkey systems and parts, incorporating corrugated tubular, and scraped floor heat exchanger technology, HRS models are compliant with international design and industry standards.For extra information, go to www.hrs-heatexchangers.com.
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