Scraped surface heat exchangers have been used for tough warmth transfer purposes involving viscous fluids or the place fouling is a matter, such as evaporation processes. The commonest sort of scraped surface warmth exchanger (SSHE) makes use of a rotating shaft with blades or augers which scrape the floor of the tube. The well-liked HRS R Series is based on this method. However, the design isn’t optimal for every situation, and so HRS developed the Unicus Series of reciprocating scraped floor heat exchangers.
The Unicus Series of reciprocating scraped floor heat exchangers is right for viscous products such as cream and tomato juice, in addition to products containing fruit items or particles.
IT STARTS WITH DESIGN
The HRS Unicus Series is specifically designed to provide the improved heat switch of a standard SSHE, however with a gentle motion to preserve the quality and integrity of delicate food products such as cheese, yoghurt, ice cream, meat paste, and products containing whole items of fruits or vegetables. Over the years, a quantity of completely different scraper designs have been developed, that means that each application, from processing curds to heating sauce or pasteurizing fruit compotes may be handled in the most environment friendly but light way attainable. Other applications where the Unicus Series has been useful embrace handling meat slurry and mince, and processing yeast-malt extracts.
เกจวัดแรงดัน4นิ้วราคา makes use of a patented stainless-steel scraping mechanism that strikes hydraulically backwards and forwards within each interior tube. The movement performs two key capabilities: it minimizes potential fouling by maintaining the tube wall clean and also creates turbulence within the material. Together, these actions improve the rate of warmth transfer within the material, creating a extremely efficient process that’s best for viscous and high fouling supplies.
Since they are controlled separately, the speed of the scrapers can be optimized for a particular product being processed, so that materials which are prone to shear stress or stress harm (such as creams and custards) can be handled delicately to prevent injury whereas still offering high ranges of heat switch. The Unicus Series has proven significantly useful in handling viscous meals merchandise the place texture and consistency are important attributes. For example, some lotions or sauces may shear when subjected to excess stress, making them unusable. The Unicus means that effective warmth switch may be carried out at low pressures which overcomes these problems.
HRS UNICUS SERIES UP CLOSE
Each Unicus SSHE consists of three parts: a hydraulic cylinder and power pack (although in smaller units a pneumatic cylinder may be equipped instead), a separation chamber to make sure hygiene and preserve product separation from the motor, and the heat exchanger itself. The warmth exchanger consists of a variety of tubes, each of which incorporates a stainless-steel rod to which the suitable scraping parts are fitted. Using a spread of food-safe materials together with Teflon and PEEK (polyether ether ketone), these present totally different inner geometry setups according to the appliance, such as 120-degree scrapers for large particulates and 360-degree scrapers for viscous fluids with out particulates.
The Unicus Series can be absolutely scalable by rising the shell diameter and including more interior tubes from a single tube as much as eighty in a single shell. A key feature is the specifically designed seals which separate the inner tube from the separation chamber, tailored to the product application. These seals forestall leakage of the product and guarantee inner and external hygiene. A commonplace range of fashions for food processing present warmth transfer areas from 7 to 107 square feet, whereas larger models up to practically 1,300 sq. ft may be made for particular uses.
EXCELLENCE IN ACTION
One area where the Unicus Series excels is in evaporation functions, where the prevention of fouling is especially important. HRS has a particular version of the Unicus for use in evaporation items where quantity reduction of the fabric is important. The scraping motion keeps the heat switch surfaces clear so that Unicus evaporators can concentrate materials to a level that’s unattainable utilizing traditional technologies. Unicus evaporators can be used in multi-effect setups or in combination with mechanical vapor recompression.
Matt Hale is international gross 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 know-how, offering revolutionary heat transfer solutions worldwide throughout a various range of industries. With forty years’ expertise in the meals and beverage sector, specializing within the design and manufacture of an in depth range of turnkey techniques and parts, incorporating corrugated tubular, and scraped surface warmth exchanger know-how, HRS models are compliant with international design and trade standards.For more data, go to www.hrs-heatexchangers.com.
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